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192 commits

Author SHA1 Message Date
Ragnor Comerford
e62d9166fb
fix: optimize publishes compaction; recovery roll-back converges manifest (#141)
* test(optimize): cover manifest publish + HEAD-drift reconcile

Red against the pre-fix optimize, which ran compact_files without
publishing the compacted version to __manifest:

- maintenance: optimize must publish so the manifest table_version
  tracks the compacted Lance HEAD and a later schema apply succeeds;
  and must reconcile a pre-existing manifest-behind-HEAD drift (forged
  via raw Lance compaction) so strict writes commit again.
- end_to_end + composite_flow: post-optimize query / strict update /
  reopen in the full lifecycle (the canonical flow previously omitted
  post-optimize writes as a documented "known limitation").
- failpoints: a crash between compaction and the manifest publish rolls
  forward on next open.

* fix(optimize): publish compaction to manifest and reconcile HEAD drift

optimize ran Lance compact_files without publishing the new version to
__manifest, so the manifest table_version lagged the Lance HEAD: reads
stayed pinned to the pre-compaction version, and the next schema apply or
strict update/delete failed its HEAD-vs-manifest precondition with
"stale view ... refresh and retry" (open-time recovery rollback inflated
the gap on retry).

optimize now publishes each compacted table's version under the
per-(table, main) write queue, guarded by a manifest CAS and a
SidecarKind::Optimize recovery sidecar (loose-match; roll-forward is safe
because compaction is content-preserving). When a table has nothing left
to compact but its Lance HEAD is already ahead of the manifest pin
(pre-fix drift, or a recovery restore commit), optimize reconciles the
manifest forward to HEAD (metadata-only, no sidecar). Caches and the
CSR/CSC graph index are invalidated after a publish.

Docs updated (maintenance, storage, branches-commits, writes, testing).

* test(recovery): rollback convergence + optimize-defer regressions

Red against the current code, landed before the fix:
- recovery: after the open-time sweep rolls a sidecar back, the manifest
  must track Lance HEAD (no residual drift) so a follow-up schema apply
  succeeds — the original "+1 per retry" loop. Today roll-back restores
  without publishing, so the manifest lags HEAD and the apply fails its
  HEAD-vs-manifest precondition.
- maintenance: optimize must refuse while a recovery sidecar is pending —
  operating on an unrecovered graph could publish a partial write the
  sweep would roll back.

Also removes optimize_reconciles_preexisting_manifest_head_drift: the
ad-hoc drift reconcile it covered is replaced by recovery-side convergence.

* fix(recovery): converge manifest on roll-back; optimize defers on pending recovery

Root of PR #141's review findings and the original "+1 per retry" loop:
a Lance HEAD ahead of the manifest was ambiguous (benign content-preserving
drift vs. a partial write a sidecar will roll back), and optimize's reconcile
guessed it benign. Close the class instead of guessing:

- Recovery roll-back now PUBLISHES the restored version (via a
  push_table_update_at_head helper shared with roll-forward), so the manifest
  tracks the Lance HEAD after recovery — symmetric with roll-forward. This
  fixes the +1 loop (after one roll-back the retry's HEAD-vs-manifest
  precondition passes) and removes the only remaining source of orphaned
  drift. The audit still records the logical rolled-back-to version; the
  manifest is published at the restore commit (identical content).
- optimize drops the ad-hoc drift reconcile and instead REFUSES when a
  __recovery sidecar is pending, so it only ever operates on a recovered
  graph (manifest == HEAD); its compaction publish can no longer commit a
  partial write. With the reconcile gone, the blob-skip-vs-reconcile gap is
  moot.

Updates the rollback recovery-test helper (manifest == HEAD after roll-back),
the failpoints assertions, and the user/dev docs.

* test(recovery): fix rollback assertion for manifest convergence

The roll-back-publishes change makes the manifest version advance after a
SchemaApply roll-back (to the old-schema content), so the
schema_apply_without_schema_staging_rolls_back_on_next_open assertion must
be `version > pre`, not `version == pre`. This update was dropped during
the commit churn and surfaced as a CI Test Workspace failure; the
old-schema-preserved intent stays covered by count_rows + _schema.pg + the
RolledBack convergence invariant.
2026-06-08 02:50:12 +03:00
Aaron Goh
4a66d6e071
fix(loader): accept multi-line (pretty-printed) JSON in load (#146)
The loader read input line-by-line (reader.lines() + serde_json::from_str per line), so any delta where a JSON object spanned multiple lines failed with 'invalid JSON on line 1: EOF while parsing an object'. Compact JSONL worked; pretty-printed JSON never did.

Switch to a streaming value deserializer (Deserializer::from_reader().into_iter::<Value>()), which treats any whitespace (including newlines inside objects) as a separator — so both compact JSONL and pretty-printed JSON load. Error labels switch from line numbers to record numbers (line numbers are meaningless once objects span lines).

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-06-07 20:37:37 +02:00
Ragnor Comerford
54842808db
feat(engine): sweep & remove legacy __run__ branch guard (MR-770) (#132)
* feat(engine): sweep legacy __run__ branches via v2→v3 manifest migration

Pre-v0.4.0 graphs can carry stale `__run__<id>` staging branches on the
`__manifest` dataset, left by the Run state machine removed in MR-771. Lance's
`list_branches` still enumerates them, so they leak into `branch_list()` and
count as blocking branches at schema-apply time.

Add a one-time `migrate_v2_to_v3` arm to the internal-schema dispatcher: on the
first read-write open it enumerates `__manifest` branches, deletes every
`__run__*` ref, and bumps the stamp to 3. Idempotent under retry (re-enumerates
fresh each run). The `"__run__"` prefix is inlined so the migration does not
depend on the run_registry guard that MR-770 removes next.

This is the prerequisite sweep; the guard removal follows in the next commit.

* refactor(engine): remove the legacy __run__ branch guard (MR-770)

With the v2→v3 migration sweeping stale `__run__*` branches off `__manifest`
on first read-write open, the defense-in-depth `is_internal_run_branch` guard
is no longer needed.

- delete `db/run_registry.rs`; drop the module + re-export from `db/mod.rs`
- collapse `is_internal_system_branch` to the schema-apply-lock check only
- `ensure_public_branch_ref`: drop the run-ref rejection; `__run__*` is now an
  ordinary branch name
- `branch_merge`: reject `is_internal_system_branch` (was run-only) so the
  schema-apply lock is rejected consistently with create/delete — a small,
  deliberate tightening
- update the inline schema-apply test + the writes integration tests
  (`public_branch_apis_reject_internal_run_refs` →
  `public_branch_apis_reject_internal_system_refs`, which also asserts
  `__run__*` now creates successfully)
- docs: flip the "pending production sweep / defense-in-depth" notes to
  "auto-swept by the v2→v3 migration"; document the read-only-open limitation

Known residual: the inert `_graph_runs.lance` / `_graph_run_actors.lance` bytes
remain until a `StorageAdapter::delete_prefix` primitive lands.

* fix(engine): run __run__ sweep at Omnigraph::open, not only on publish

Review (PR #132) caught a regression: removing __run__ from
`is_internal_system_branch` exposed legacy `__run__*` branches to the
schema-apply blocking-branch checks (schema_apply.rs:104 and :778) and to
`branch_list()`, but the v2→v3 sweep ran only inside the publisher's
`load_publish_state`. On a pre-v0.4.0 graph whose first write is a schema
apply, the blocking-branch check fires before any publish, so apply failed
with "found non-main branches: __run__…". The same lazy timing also created a
reverse hazard: a user-created `__run__*` branch on a still-v2 graph could be
deleted by the first publish's sweep.

Fix: run the internal-schema migration in `Omnigraph::open(ReadWrite)` (new
`manifest::migrate_on_open`), before the coordinator reads branch state. The
sweep now lands before any branch-observing code, and a graph is stamped v3 at
open — so the one-time sweep can never catch a legitimately-created branch.
Both checks and `branch_list` see the swept graph; correct by construction for
every write path.

Accepted residual: a read-only open of an unmigrated legacy graph still lists
`__run__*` (read-only opens must not write, so they can't sweep). Documented.

Regression test `legacy_run_branch_is_swept_on_open_and_does_not_block_schema_apply`
confirmed RED before the fix (panicked on the branch_list leak assertion) and
GREEN after. Also updates the stale schema_apply.rs comment, the writes.md
"Migration code" section, and adds the v3 row to storage.md's migration table.

* test(engine): sweep multiple legacy __run__ branches; doc nit

Strengthen the v2→v3 migration test to synthesize three `__run__*` branches
(a real legacy graph accumulates one per run) so the migration's delete loop
is exercised on a single reused dataset handle, not just a single branch.
Confirms multi-branch deletion is safe.

Also drop a stale "active runs" reference from the branch_delete doc line.

* fix(engine): force-delete in __run__ sweep for concurrency safety

`migrate_v2_to_v3` ran `Dataset::delete_branch` (= `branches().delete(.., false)`),
which errors "BranchContents not found" if the branch is already gone. Since the
sweep now runs in `Omnigraph::open(ReadWrite)`, two processes opening the same
legacy v2 graph concurrently would race: one wins each delete, the other's open
fails. The migration only claimed idempotency under *sequential* retry.

Switch to `Dataset::force_delete_branch` (= `delete(.., true)`), Lance's
documented path for cleaning up zombie branches, which tolerates an
already-absent branch. The sweep is now idempotent under concurrent runners and
robust to partial/zombie state. Found in self-review; no behavior change for the
common single-open path.

* docs(release): note MR-770 __run__ cleanup in v0.6.1

* docs(branches): reconcile branch cleanup semantics
2026-06-07 18:33:14 +03:00
Ragnor Comerford
d54bccb940
fix(optimize): skip blob-bearing tables to avoid Lance compaction crash (#138)
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* test(optimize): pin Lance blob-column compaction failure as a surface guard

Lance compact_files mis-decodes blob-v2 columns under its forced BlobHandling::AllBinary read ("more fields in the schema than provided column indices"), failing even a pristine uniform-V2_2 multi-fragment blob table; reads use descriptor handling and are unaffected.

Guard 10 reproduces this and is self-retiring: it turns red on the Lance bump that fixes the bug, forcing LANCE_SUPPORTS_BLOB_COMPACTION to flip.

* fix(optimize): skip blob-bearing tables instead of crashing compaction

omnigraph optimize aborted the whole sweep when any node/edge table had a Blob property: Lance compact_files cannot decode blob-v2 columns under AllBinary (the column-index error pinned by the surface guard). Skip blob-bearing tables behind a LANCE_SUPPORTS_BLOB_COMPACTION gate and report them via TableOptimizeStats.skipped / SkipReason (surfaced in the CLI and a tracing::warn) instead of erroring, which also isolates the failure so the other tables still compact.

Reads/writes are unaffected; only fragment/space reclamation on blob tables is deferred until the upstream Lance fix. Adds a maintenance.rs regression test (validated red with the column-index symptom before the fix, green after), a concise v0.6.1 release note, and updates docs (maintenance, cli-reference, AGENTS capability matrix, invariants Known Gaps, lance.md audit, constants).

* refactor(optimize): make TableOptimizeStats and SkipReason non_exhaustive

Both are returned result types, never built by callers, so #[non_exhaustive] makes this the last field/variant addition that can break downstream literal construction and keeps future ones non-breaking (review feedback on the public-field addition). The v0.6.1 Compatibility Notes call out the source-level change.

Also drops the now-stale "RED today / GREEN after the fix lands" narration in the optimize_skips_blob_table_and_reports_skip test (historical regression context now that the fix is in this branch), and folds in the expanded v0.6.1 release note.

* chore(release): bump workspace to v0.6.1

Coherent version bump to accompany the v0.6.1 release note: all five crate manifests + path-dependency constraints, Cargo.lock, the AGENTS.md surveyed-version line, and openapi.json info.version move 0.6.0 -> 0.6.1. Matches the established release pattern (#118 landed the v0.6.0 note + bump together) and resolves the Codex/Devin review flag that a v0.6.1 note without a bump leaves CARGO_PKG_VERSION reporting 0.6.0 and mixed package versions.
2026-06-02 17:12:00 +02:00
Ragnor Comerford
3c2b1b8051
Stored-query registry foundation + config/CLI RFC-002 (#128)
* MR-969: add stored-query registry config surface

Introduce the `queries:` block in omnigraph.yaml — an inline
`name -> entry` map of stored queries, per-graph
(`graphs.<id>.queries`) and top-level for single-graph mode, mirroring
how `policy` is wired in both modes. Each entry points at a `.gq` file
and carries optional MCP exposure settings (`expose`, `tool_name`),
defaulting to not-exposed.

Additive: absent `queries:` leaves current behavior unchanged.

- QueryEntry { file, mcp: McpSettings { expose, tool_name } }
- `queries` field on TargetConfig + OmnigraphConfig (serde default)
- query_entries() / target_query_entries() accessors
- resolve_query_file() — base_dir-relative `.gq` path resolution
- round-trip + absent-block tests

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Add stored-query registry loader and GraphHandle wiring

Add a `queries` module: QueryRegistry loads each declared `.gq` entry,
parses it, and selects the query whose symbol matches the manifest key,
asserting the two agree (key == `query <name>` symbol). Identity is the
query name; a key/symbol mismatch is a load-time error. Errors are
collected, not fail-fast, so a bad registry surfaces every broken entry
at once. Schema type-checking is deliberately left to a separate pass so
the loader stays callable without an open engine.

Thread an `Option<Arc<QueryRegistry>>` through GraphHandle alongside the
per-graph policy; the URI-canonicalizing clone propagates it. Production
openers default to None for now — the boot path loads and attaches the
registry in a later change.

- QueryRegistry::{from_specs, load, lookup, iter}; StoredQuery::is_mutation
- GraphHandle.queries field, propagated on canonical clone
- registry unit tests: identity match/mismatch, multi-query selection,
  per-entry parse errors, error collection, mutation classification

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: add RFC-002 config & CLI architecture

Layered config (user-global ~/.config/omnigraph/ + per-project), a
unifying `target` abstraction resolving to (locus, graph, sub-state,
credential) with embedded-URI XOR remote-server loci, multi-server ×
multi-graph client targeting, credentials by-reference, and the
file-naming decision: project and server config are one artifact
(`omnigraph.yaml`); the only differently-named file is the user-global
`config.yaml`, split by scope not role. Includes the 12-factor bind
portability rule (prefer --bind/OMNIGRAPH_BIND over a committed
server.bind) and the defined-locally / invoked-remotely model for
stored queries. Derived from first principles working backwards from
what the engine enables; validated against kube/Helix/git/compose.

Linked from docs/dev/index.md. Proposed; phased rollout for the
MR-973/974/981 family.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Add check() to validate stored queries against the live schema

A pure check(registry, catalog) that type-checks every stored query via
the same typecheck_query_decl the engine runs for inline queries — no
parallel implementation. Failures are collected, not fail-fast, so an
operator sees every broken query (e.g. a type/property a migration
renamed or removed) in one pass. Breakages are fatal (the boot path will
refuse to start); warnings are advisory.

Pure over (registry, catalog) so it is callable both at boot (engine
catalog) and offline from the CLI without an open engine.

Advisory lint: an mcp.expose:true query that declares a Vector(N)
parameter warns — an LLM cannot supply a raw embedding vector; such a
query should take a String parameter and embed server-side. Warns
rather than rejects, since service-to-service callers may pass vectors.

- CheckReport { breakages, warnings }; has_breakages / is_clean
- tests: valid query, unknown type, unknown property, collect-not-fail-fast,
  vector-param-exposed warns, unexposed silent

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Drop internal plan-label refs from stored-query config comments

Doc comments referenced sequencing labels ("C2") that mean nothing to a
reader; reword to describe the behavior directly. Comment-only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: reconcile aliases with the role model in RFC-002

Place the existing client-only `aliases:` block in the client/server
role split: aliases are client-role (CLI, embedded, ungated) and may
live in both user-global and project config; `queries:` is server-role
(deployment manifest only). They overlap as "name -> .gq"; `queries:` is
the superset, and the end-state subsumes aliases (definition -> queries,
target/branch/format -> client invocation context, positional args ->
CLI sugar). v1 keeps aliases unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: make RFC-002 config global-first, project-optional

The global user config is the primary, self-sufficient default; the
CLI works from any directory with no project file (the kubectl/aws/gh
posture), a deliberate flip from today's project-anchored behavior.
The project omnigraph.yaml becomes an optional repo-scoped override and
the deployment manifest. Uniform schema, both layers optional; global
can hold any section including a personal server's graphs/queries.
Additive: project still overrides global; the flip adds a fallback
layer below the project file rather than removing it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: justify XDG ~/.config/omnigraph over legacy ~/.omnigraph in RFC-002

Make the rationale explicit: XDG-first because OmniGraph is a client
that will cache remote catalogs and keep session state alongside
secrets, and XDG separates config / cache / state into distinct dirs
(clear cache without touching creds; backups skip cache) whereas a
single ~/.omnigraph/ mixes them. Honor ~/.omnigraph/ as a fallback for
the peer-group (aws/kube/docker/helix) expectation. Add XDG_CACHE_HOME
/ XDG_STATE_HOME to the override precedence.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: build RFC-002 credentials on the existing env-file mechanism

OmniGraph already has credentials-by-reference: bearer_token_env names
the env var, and auth.env_file is a git-ignored dotenv the CLI
auto-loads (real env vars win), resolved via resolve_remote_bearer_token.
The RFC's proposed credentials.yaml + token_env were redundant parallel
inventions. Reconcile: reuse bearer_token_env (extend to
servers.<name>) and auth.env_file (add a global ~/.config/omnigraph/.env
layered under the project .env.omni); OS keychain is an additive future
resolver. No new credentials.yaml. Updated summary, non-goals,
background, file-naming, credentials, example, login, migration, rollout.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: use single ~/.omnigraph dir (Helix-style), not XDG, in RFC-002

Reverse the earlier XDG-first call. The prior argument rested on a false
dichotomy (single-dir => mixed config/cache/state); in fact the peer
tools (aws, kube, helix) achieve separation via SUBDIRECTORIES inside
one ~/.tool/ dir (~/.aws/sso/cache/, ~/.kube/cache/), getting cache
hygiene AND one discoverable place. So everything goes under
~/.omnigraph/: config.yaml, credentials (dotenv, 0600), cache/, state/.
Lower cognitive load, matches what DB/cloud-CLI users expect, matches
Helix. OMNIGRAPH_HOME overrides; $XDG_CONFIG_HOME optionally honored but
~/.omnigraph/ is canonical. Updated all paths, the rationale paragraph,
the file-naming table (added a cache/state row), and env precedence.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: reconcile RFC-002 with shipped/planned CLI tickets

Align with reality found in existing tickets:
- Noun is graph/graphs, not target/targets (MR-603 done renamed the
  config key targets->graphs, flag --graph). Use graphs:/--graph; an
  entry is embedded (uri) XOR remote (server + remote graph name).
- ~/.omnigraph/ confirmed by MR-581 (og template pull, done) which
  already quick-starts templates there.
- Templates already exist (MR-581/MR-531) — not invented here.
- The init family is already specced (init, quickstart MR-973, serve
  MR-970, prune MR-972, mcp install MR-974, agent-mode MR-981); this
  RFC only adds the user route (~/.omnigraph/config.yaml + login).
- aliases: -> operations: planned (MR-839).
- bearer_token_env gap tracked in MR-971.
- query lint/check already exist (MR-639) — registry validator must not
  collide with the singular `query check`.
Add a Reconciliation section; fix the canonical example to graphs:/--graph.
Also: merge semantics refined (deep-merge settings, replace named
entries, replace lists, config view --resolved --show-origin).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: correct stale-ticket claims and fold init/bootstrap design into RFC-002

Verify against code, not ticket statuses (MR-581 is marked done but is
stale/unbuilt): no ~/.omnigraph usage, no template/serve/quickstart/
prune/login commands exist; config still uses aliases: (no operations:).
So ~/.omnigraph/ stands on peer-convention merits alone, and templates
are a design question, not a foothold. Add §7.5: the three-tier init
model (user route = login + ~/.omnigraph/config.yaml; thin project init;
fat quickstart + templates) with first-principles positions (split
init/login, in-place refuse-if-exists, interactive vs --auto/agent-mode,
--template flag, secrets-on-scaffold gitignore rule). This RFC owns only
the user route; the rest are sibling tickets (MR-973/970/972/974/981).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: breadboard + slice Shape A in RFC-002

Add the implementation breadboard (places P1-P5, affordances N1-N14 with
NEW markers, mermaid) and five vertical slices for the selected config/
CLI/init shape: V1 global layer + merge engine + config view; V2 remote
graphs + HTTP-client path + credential resolution; V3 omnigraph login;
V4 init-hardening + quickstart + templates (rides MR-970); V5 agent-mode
(MR-981). Rollout reordered to the slice sequence; spikes X1-X4 gate
their owning slice. V1-V2 close the substantive client->server gap.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Add InvokeQuery Cedar action (coarse, graph-scoped)

A per-graph, branch-scoped action that gates invoking a server-side
stored query by name. Coarse for now: an `invoke_query` allow rule
permits any stored query on the graph; a future, additive refinement
adds an optional per-query-name scope without changing rules written
against the coarse action. Enforcement is at the HTTP boundary; the
engine `_as` writers still enforce read/change per the query body, so a
stored mutation is double-gated (invoke_query to reach the tool, change
for the write). No call site yet — the invocation handler wires it in a
later change (same pattern as Admin/GraphList added ahead of consumers).

- variant + as_str/resource_kind(Graph)/FromStr/uses_branch_scope
- Cedar schema: invoke_query appliesTo Graph
- tests: per-graph allow/deny, branch-scope accepted

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Load and type-check stored queries at server boot, refusing breakage

At startup the server now loads each graph's stored-query registry,
type-checks every query against that graph's live schema, and refuses to
boot if any query references a type/property the schema doesn't have
(same posture as bad policy YAML) — so schema drift surfaces at the
deploy boundary, not silently at invocation. Non-blocking warnings are
logged. The validated registry is attached to the GraphHandle (the two
production sites previously held `queries: None`).

Loading (parse + key==symbol identity) happens at settings-build time
where the config is in scope; the schema type-check happens after each
engine opens (single mode in `open_single_with_queries`, multi mode in
`open_single_graph`). `open_with_bearer_tokens_and_policy` delegates
with an empty registry so its 18 test callers are unchanged; the public
`new_*` constructors are unchanged (only the private build path threads
the registry).

- ServerConfigMode::Single / GraphStartupConfig carry the loaded registry
- boot tests: valid registry boots; type-broken query refuses boot + names it

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Add `omnigraph queries validate` and `queries list` CLI

`queries validate` type-checks the stored-query registry against the
live schema offline — it opens the selected graph, runs the same
check() the server runs at boot, prints breakages/warnings (human or
--json), and exits non-zero on any breakage — so an operator can catch
a query broken by a schema change without restarting the server.
`queries list` prints each registered query's name, MCP exposure, and
typed params.

Named `validate` (not `check`) to avoid overlap with the existing
`omnigraph lint` — `query check`/`query lint` are already deprecated
argv-shims to `lint`. Registry entries resolve like the server: a named
graph uses its per-graph `queries:`; otherwise the top-level one.

- Queries subcommand group; reuses QueryRegistry::load + check from
  omnigraph-server; local-only (needs the schema), mirrors lint
- tests: clean registry exits 0, broken query exits non-zero + names it,
  list shows the query and its typed params

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* Route registry selection through one shared query_entries_for

The "which queries: block applies for graph X" rule existed twice — the
server boot path and the CLI's registry_entries — and had already drifted:
the CLI carried an unreachable unwrap_or_else fallback the server lacked.

Add OmnigraphConfig::query_entries_for(graph: Option<&str>) as the single
definition (named graph -> its per-graph block; otherwise top-level) and
route all three sites through it: server single mode, server multi-graph
loop, and the CLI. The CLI's dead fallback arm is deleted; CLI and server
now resolve identically by construction.

No behavior change. Extends the config round-trip test to pin the selector,
including the unknown-name -> top-level fallback the deleted CLI arm covered.

* Funnel registry validation through one validate_and_attach gate

The check -> refuse-on-breakage -> log-warnings -> empty->None block was
copy-pasted across both open paths (single mode and the multi-graph
per-graph open), differing only by the graph label. A third opener could
attach a registry that was never schema-checked.

Extract validate_and_attach(queries, catalog, label) -> Option<Arc<..>> as
the single gate both paths call, so attaching an unchecked registry is no
longer expressible. The catalog handle is an owned Arc, so calling it
before the multi-mode policy match (which rebinds db) is borrow-clean.

No behavior change. Adds a direct unit test of the helper (empty / clean /
breakage incl. the graph label in the message) — covering the multi-graph
path's logic, which previously had no boot-refusal coverage.

* Resolve param types structurally in the MCP vector lint

The exposed-query advisory detected vector params with
type_name.starts_with("Vector(") — a second copy of the compiler's own
ScalarType::from_str_name vector parsing that could drift from it.

Key the lint off PropType::from_param_type_name + ScalarType::Vector(_)
instead, the one canonical resolver the type system already uses. Any
future param-suppliability lint now reads the structured type rather than
scanning the surface string.

Behavior-preserving: the grammar forbids list-of-vector params
(list_type = "[" base_type "]", and base_type excludes Vector), so the only
input where the structured and string checks could differ is unparseable.
Adds a guard test that an exposed String param does not false-trigger the
warning.

* Refuse duplicate MCP tool names across exposed stored queries

The effective MCP tool name (explicit tool_name, else the query name) is a
second identity namespace beside the registry key, but nothing enforced it
unique — two exposed queries could claim one catalog key, and each consumer
re-derived the name ad hoc.

Add StoredQuery::effective_tool_name() as the one definition, and a
load-time uniqueness pass in from_specs over exposed queries: a collision is
a collected LoadError naming the loser and the winner. Scoped to exposed
queries (unexposed have no MCP tool); deterministic over the BTreeMap so the
first-declared wins and the error order is stable.

New (rare) refusal: a config with colliding exposed tool names now fails
`omnigraph queries validate` offline and refuses server boot, the same
posture as a malformed registry. Release-note-worthy.

Test-first: duplicate_exposed_tool_name_is_a_load_error (red before the
pass, green after) + a CLI offline test; the unexposed sibling pins the
exposed-only scope; effective_tool_name asserts folded into the load test.

* docs: document the queries registry, CLI, and invoke_query action

The stored-query surface shipped without user docs. Add it, per the same-PR
maintenance contract:

- policy.md: invoke_query as per-graph action #10 (branch-scoped), with the
  double-gating note; renumber graph_list; add it to the branch_scope list.
- cli-reference.md: the `queries validate | list` command, and the
  `queries:` config block (per-graph + top-level) with mcp.expose/tool_name
  and the tool-name uniqueness rule.
- server.md: boot-time stored-query type-check (refuse on breakage), noting
  invocation over HTTP/MCP is not yet exposed.

* Add POST /queries/{name} stored-query invocation handler

Invoke a curated server-side stored query by name: source + name come from
the per-graph queries: registry, the client sends only runtime inputs
(params, branch, snapshot). Gated by the invoke_query Cedar action at the
boundary; the handler delegates to the existing run_query/run_mutate, whose
inner Read/Change enforce still runs — so a stored mutation is double-gated
(invoke_query to reach the tool, change for the write).

- InvokeStoredQueryRequest + an untagged InvokeStoredQueryResponse
  { Read(ReadOutput), Change(ChangeOutput) } → one Json<_> return type and a
  oneOf 200 schema (a correct contract, not a wrong-but-simple one).
- Route lives in per_graph_protected → single-mode /queries/{name} and
  multi-mode /graphs/{id}/queries/{name} for free.
- Deny == unknown: an invoke_query denial and a missing query both return the
  same 404, so the catalog can't be probed by an unauthorized caller.
- OpenAPI regenerated; tests cover read, mutation double-gate (403 vs 200),
  bad-param 400, and the identical-404 deny path.

Completes the MR-969 V1 invocation slice (registry + /queries/{name} + invoke_query).

* docs: stored-query invocation endpoint; flip the not-yet-exposed caveat

Now that POST /queries/{name} ships (C7), document it: add the endpoint to
server.md's inventory + an invocation section (body, untagged read/mutate
envelope, invoke_query gate, double-gated mutations, deny == 404), and flip
the startup note that said invocation was not yet exposed. In policy.md,
replace "no invocation call site yet" on the invoke_query action with a
pointer to the endpoint.

* Scope the stored-query 404-hiding claim to non-invoke_query callers

Review found the deny==404 catalog-hiding was overstated as a contract: it
holds only at the outer invoke_query gate. A caller that HOLDS invoke_query
but lacks read/change gets the inner gate's 403 for an existing query vs 404
for an unknown one — so existence is visible to grant-holders by design (the
intended double-gate). The handler docstring, OpenAPI 404 description, and
server.md all claimed the 404 was airtight against any denied actor.

Correct the wording in all three (no behavior change) and add the missing
symmetric test (invoke_query but no read -> 403 for an existing query, 404
for unknown) so the actual contract is pinned. Also document that in
default-deny mode (tokens, no policy) every invocation 404s until an
invoke_query rule is configured.

Nits: the from_specs collision comment said "first declared wins" but it is
lexicographically-first by name (BTreeMap); the effective_tool_name docstring
overclaimed the CLI display routes through it (it resolves the rule on its
own output DTO).

* Default mcp.expose to true (the manifest entry is the opt-in)

expose controls MCP-catalog membership only — it is not an authorization
gate (invocation is gated by invoke_query regardless). So requiring a
per-query mcp.expose: true was friction with no safety benefit: a
non-exposed query is still HTTP-invocable by name. Flip the default so
declaring a query in the manifest exposes it to the agent tool catalog by
default; expose: false is the escape hatch for service-only queries.

Both the absent-mcp path (Default impl) and the present-but-no-expose path
(serde default fn) now yield true. Doc comments + cli-reference updated; the
config round-trip test asserts the new default.

* Add GET /queries stored-query catalog endpoint

List a graph's mcp.expose stored queries as a typed tool catalog so a client
(the MCP server) can register them as tools without fetching .gq source.
Each entry carries name, MCP tool_name, description/instruction, a
read/mutate flag, and decomposed typed params (kind enum: string|bool|int|
bigint|float|date|datetime|blob|vector|list, plus item_kind for lists and
vector_dim) — so the consumer builds an input schema with a closed match and
never re-parses omnigraph type spelling. I64/U64 are bigint (string on the
wire): a JSON number loses precision past 2^53 and the engine already accepts
decimal strings.

Read-gated (works in default-deny; the catalog is graph-wide, authorized
against main). NOT Cedar-filtered per query yet — a reader can list a query
whose invoke_query they lack (documented gap until per-query authz lands);
invocation stays invoke_query-gated + deny==404.

- api: QueriesCatalogOutput / QueryCatalogEntry / ParamDescriptor / ParamKind
  + query_catalog_entry (reuses PropType::from_param_type_name; scalar_kind is
  exhaustive, so a new ScalarType is a compile error here until catalogued).
- GET /queries route in per_graph_protected (→ /graphs/{id}/queries in multi
  mode); OpenAPI regenerated; path allowlists updated.
- Tests: projection unit (every kind, list, vector, nullable, mutation,
  empty) + handler (exposed-only filter, read-gate probe-oracle, empty
  registry).

* docs: GET /queries stored-query catalog endpoint

Document the catalog: the endpoint table row (GET /queries, read-gated), a
catalog section (typed-param kind enum, bigint/date/datetime/blob-as-string,
graph-wide/branch-independent, mcp.expose default true, the read-gated
probe-oracle gap), and flip the startup note now that the catalog ships.

* Collect file-I/O and parse errors in QueryRegistry::load in one pass

load() early-returned on any unreadable .gq file, masking parse / identity /
tool-name-collision errors in the OTHER (readable) files — so an operator
fixed the missing file, restarted, and only then saw the next broken query.
Now it collects I/O errors but still runs from_specs on the readable specs
and returns the union, so every broken entry surfaces at once (matching the
collected-errors contract the rest of the registry already follows).

Safe: from_specs' tool-name collision check runs over loaded queries only, so
dropping an I/O-failed entry can only under-report a collision, never invent
one. I/O errors are ordered first (BTreeMap key order), then spec errors.

Adds a load-level test (tempdir: a valid, a missing, and a parse-broken .gq)
asserting all three surface in one Err — confirmed red before the fix.

* Make invoke_query graph-scoped (one branch authority)

invoke_query gates reaching the curated stored-query surface — a graph-level
capability. Per-branch/snapshot access is already enforced by the inner
read/change gate in run_query/run_mutate (authorized against the resolved
branch), so branch-scoping the outer gate was redundant AND wrong for snapshot
reads (it defaulted to main). Drop the branch dimension: remove InvokeQuery
from uses_branch_scope (it joins admin as graph-scoped) and authorize the
boundary gate with branch: None.

Lossless: an actor confined to branch X by their read/change rules can still
only invoke a stored query that touches X. A rule that sets branch_scope on
invoke_query is now rejected by validate() — write invoke_query in its own
rule.

Ripple (atomic): restructure the server invoke fixture so invoke_query sits in
its own branch_scope-free rule; invert invoke_query_is_branch_scoped ->
invoke_query_rejects_branch_scope; the per-graph authorize test uses
branch: None; docs (policy.md, server.md, the InvokeQuery doc). No wire/OpenAPI
change.

* Resolve graph config by identity, not server mode

Which policy/queries block applies for a graph was decided three different,
mode-dependent ways: single-mode boot used top-level even for a named graph;
multi-mode used per-graph (and silently ignored a top-level queries block); the
CLI used per-graph for a named target. So `queries validate --target prod`
could check a different registry than the single-mode server loaded, and a
named graph's per-graph policy/queries were silently shadowed.

Make config a function of graph IDENTITY: a graph served by NAME
(--target/server.graph, a graphs: entry) uses its own graphs.<name>.{policy,
queries}; a bare URI is anonymous and uses top-level. One rule, applied by
single-mode boot, multi-mode boot, and the CLI — so they can't diverge and the
CLI predicts the server exactly.

No silent ignore: serving a named graph while a top-level policy/queries block
is populated now refuses boot, naming the block (the multi-mode top-level-policy
bail, extended to queries and to single-mode-named). The CLI's `queries
validate` derives the schema URI and the registry from ONE selection, and a
positional URI forces anonymous (ignoring cli.graph) so the two can't come from
different graphs.

BREAKING (released behavior): single mode by name (--target/server.graph) with
top-level policy/queries previously used top-level; it now uses the per-graph
block and refuses boot if top-level is also populated. Bare-URI single mode is
unchanged. Loud, with migration text pointing at graphs.<name>.

- config: resolve_policy_file_for (policy sibling of query_entries_for, no
  top-level fallback) + populated_top_level_blocks for the coherence check.
- characterization tests (single-mode named -> per-graph; named + top-level ->
  bail; multi-mode top-level queries -> bail; CLI positional-URI -> top-level).
- docs: policy.md, server.md, cli-reference.md.

* docs: RFC-002 credentials keyed by server name (keychain/profile/env)

Reworks the RFC's credentials model: secrets are keyed by server name — OS
keychain `omnigraph:<server>` (preferred) -> a `[<server>]` profile in
`~/.omnigraph/credentials` -> `OMNIGRAPH_TOKEN[_<SERVER>]` env (CI), the
AWS/gh/kube model. `servers.<name>` is endpoint-only by default but may carry
an explicit, secret-free `auth: { token: { env|file|command|keychain } }`
source. The shipped `bearer_token_env` + `.env.omni` dotenv remain a legacy
compat path; no `credentials.yaml`.

* docs: RFC-002 — typed graph locator (storage/server/graph_id), not a uri string

Add §1.1: the resolved graph address is a typed GraphLocator
(Embedded{storage} | Remote{server, graph_id}), not a flat uri: String.
Diagnoses the string model's cost in the code today (~16 is_remote_uri forks,
TargetConfig can't express multi-server x multi-graph, the CLI bails on remote,
the ts SDK models baseUrl+graphId separately) and settles the YAML naming so
the key names the locus:

- storage: (embedded) — shipped uri: is a deprecated alias
- server: + graph_id: (remote) — graph_id defaults to the entry key
- storage xor server, reject both/neither (no silent ambiguity)

Kills the graphs:/graph: collision and the uri:-might-be-a-server ambiguity.
Updates the §1/§8 examples and the entry-shape notes to the new naming.

* Test: queries list must reject an unknown --target

queries list opens no graph URI, so unknown-graph validation does not ride
along on resolve_target_uri the way it does for every other command. The new
test reproduces the gap: with an unknown --target the command currently exits 0
and prints the (empty) top-level registry instead of erroring like the
URI-resolving commands do. Fails against current code; the fix follows.

* Validate the graph selection in queries list

Graph-existence validation was a side effect of URI resolution: every
URI-resolving command rejects an unknown --target via resolve_target_uri, but
queries list opens no URI, so query_entries_for(Some(unknown)) silently fell
back to the top-level registry and showed the wrong (or empty) catalog.

Make membership a property of the selection: add the fallible
resolve_graph_selection alongside the infallible query_entries_for (a known
name passes through, an unknown name errors with the same message as
resolve_target_uri, None stays anonymous), and validate the selection in
execute_queries_list. query_entries_for is unchanged — server boot's bare-URI
path still needs its None -> top-level arm.

* Surface policy-engine errors from stored-query invoke

The invoke handler mapped every authorize_request failure to 404 ('stored
query not found'), which collapsed the authorization decision (deny -> 403)
together with operational failures (no actor -> 401, Cedar evaluation error ->
500). A real policy-engine 500 was hidden as a missing query.

Separate the two concerns instead of sniffing the masked status. Extract
authorize() returning an Authz { Allowed, Denied(msg) } decision and reserve
Err for operational failures only; authorize_request becomes a thin wrapper
that maps Denied -> 403, so the 16 deny-as-403 callers are unchanged. The
invoke handler now matches the decision directly: a denial stays 404 (deny ==
missing, so the catalog can't be probed without the grant), while a 401/500
propagates with its true status.

500 is now a reachable outcome on POST /queries/{name}; document it in the
endpoint responses and regenerate openapi.json.

* Extract the named-graph/top-level coherence rule into one helper

The rule 'a named graph uses its own graphs.<name> block, so a populated
top-level block is a config error' lived inline in single-mode server boot.
Extract it to OmnigraphConfig::ensure_top_level_blocks_honored so the same
definition can be shared by the CLI selection gate (next commit) and the two
can't drift. Boot calls the helper; the message is reworded context-neutral
(drops 'serving') so it reads correctly from both boot and the CLI.

Behavior-preserving: multi-graph mode keeps its own unconditional check, and
single_mode_named_graph_rejects_top_level_blocks still passes.

* Test: queries validate/list must reject a named graph with a top-level block

Server boot refuses a config where a graph is selected by name yet a top-level
queries:/policy.file block is populated (the block would be silently ignored).
The CLI's queries validate/list resolve the same named selection but skip that
coherence check, so they give a false green / list the per-graph block. The new
test reproduces it: validate prints OK and list succeeds where boot would
refuse. Fails against current code; the fix follows.

* Enforce top-level coherence in the single CLI selection gate

queries validate validated graph membership only as a side effect of URI
resolution and queries list only via resolve_graph_selection's membership
check; neither applied the named-graph/top-level coherence rule server boot
enforces, so both gave a false green on a config boot refuses.

Fold ensure_top_level_blocks_honored into resolve_graph_selection so it is the
single gate that returns only valid + server-coherent selections, and route
resolve_selected_graph (queries validate) through it; queries list already
calls the gate. A named graph with a populated top-level block now errors in
both commands, matching boot. A positional URI stays anonymous (top-level
honored), so queries_validate_positional_uri_ignores_default_graph is
unaffected.

* docs: RFC-003 — MCP server surface for omnigraph-server

Detailed MCP-transport design for the stored-query/MCP work, building on the
shipped #128 registry. Corrects the draft against the branch head: the coarse
invoke_query gate + 404 denial-masking are already wired (server_invoke_query),
so per-query invoke_query scope (PolicyRequest has no query-name dimension yet)
is the real prerequisite; positions the doc as superseding rfc-001's MCP
transport (/mcp/tools+/mcp/invoke) and reconciles the shipped mcp.expose YAML
form and the schema-introspection non-goal; grounds the parity surface in the
actual omnigraph-ts package (13 tools with read/change ids, 2 resources).

* docs(config): clarify graph config boundaries

* fix(config): enforce graph-scoped policies and query validation

* fix(cli): require graph selection for scoped query registries

* fix(server): preserve named graph id in single mode policy

* fix(cli): share graph identity for policy resolution

* test(cli): cover policy tooling server graph selection

* fix(cli): honor server graph for policy tooling

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-01 22:50:31 +02:00
Ragnor Comerford
353c0c876a
fix(branch): make branch delete correct under partial failure (#137)
* test(lance): pin force_delete_branch surface guard

Pin the Lance 6.0.1 force_delete_branch behavior the branch-delete
single-authority redesign relies on: plain delete_branch errors on a
missing ref, force_delete_branch removes an existing forked branch, and
the local-store quirk where force_delete on a fully-absent branch still
errors (worked around by the upcoming TableStore::force_delete_branch).

Re-pin the docs/dev/lance.md alignment stanza (9 guards; 4 runtime).

* feat(storage): add force branch-delete to TableStore + CommitGraph

Add TableStore::force_delete_branch and CommitGraph::force_delete_branch
(idempotent: tolerate an already-absent branch via Lance RefNotFound /
NotFound), plus CommitGraph::list_branches for the cleanup reconciler to
diff against the manifest authority. RefConflict (referencing
descendants) is still surfaced. Unused until the branch-delete rewire.

* test(maintenance): red — cleanup reconciles orphaned branch forks

Forge a Lance branch on the Person table that the manifest never
references (a zombie fork from an incomplete prior delete) and assert
cleanup reclaims it while leaving main intact. Fails today: cleanup does
not yet reconcile orphaned forks. Goes green with the next commit.

* fix(maintenance): reconcile orphaned branch forks in cleanup

Add reconcile_orphaned_branches: force_delete_branch every per-table and
commit-graph Lance branch absent from the manifest branch set (the
authority), children-before-parents. Folded into cleanup_all_tables,
runs before version GC. Idempotent and authority-derived; no-ops once
nothing is orphaned, and would harmlessly find nothing if a future Lance
atomic multi-dataset branch op prevented orphans. Adds TableStore::list_branches
and exposes graph_commits_uri(pub crate). Turns the maintenance red test green.

* test(failpoints): red — branch_delete partial failure converges

Add the branch_delete.before_table_cleanup failpoint hook (inert without
the feature) and a regression test: a cleanup-step failure after the
manifest authority flip must leave branch_delete returning Ok, the branch
gone, the orphan stranded, then reclaimed by cleanup, and the name
reusable. Fails today: cleanup_deleted_branch_tables propagates the error
as a hard failure. Goes green with the next commit.

* fix(branch): best-effort fork reclaim after the manifest flip

Make branch_delete treat per-table forks and the commit-graph branch as
derived state reclaimed best-effort with force_delete_branch after the
manifest authority flip. A reclaim failure (transient error, or the
branch_delete.before_table_cleanup failpoint) is logged via tracing::warn
and swallowed: the branch is already gone and the cleanup reconciler
converges the orphan. cleanup_deleted_branch_tables no longer returns an
error or blocks the call. Turns the partial-failure recovery test green.

* test(failpoints): red — recreate over orphaned fork is actionable

After a partial-failure delete leaves a fork orphaned, recreating the
branch name and writing to the previously-forked table before cleanup
runs currently surfaces the opaque ExpectedVersionMismatch ("stale view
... expected manifest table version N"). Assert instead a clear error
pointing the user at cleanup. Goes green with the next commit.

* fix(branch): actionable orphan-collision error in fork_branch_from_state

When a fork's create_branch collides with an existing target ref, reuse
it only if its head matches source_version (a legitimate concurrent
first-write). A version mismatch means a zombie fork from an incomplete
prior delete: return a manifest_conflict pointing the user at
`omnigraph cleanup`, instead of the opaque ExpectedVersionMismatch.
Turns the recreate-over-orphan red test green.

* docs(invariants): single-authority branch-lifecycle + Lance forward-compat

Record branch delete in the Current Truth Matrix: manifest is the single
authority flipped atomically first, per-table forks + commit-graph branch
are derived state reclaimed best-effort with the cleanup reconciler as
backstop, and reusing a name whose reclaim failed surfaces an actionable
error. Note the reconciler is authority-derived and degrades to a no-op
under a future Lance atomic multi-dataset branch op, the same shape as
invariant 7.

* test(failpoints): red — cleanup isolates a single-table failure

Add the cleanup.table_gc failpoint hook (inert without the feature) and
an error: Option<String> field on TableCleanupStats (mechanical, always
None for now). Regression test: a one-shot version-GC failure for one
table must not abort the whole cleanup — assert cleanup still succeeds,
surfaces the failure per-table in stats, and the independent reconcile
pass still reclaimed an orphan. Fails today: the version-GC collect
aborts on the first table error. Goes green with the next commit.

* fix(maintenance): fault-isolate cleanup per table

Make the cleanup sweep do as much as it can and converge on re-run
instead of aborting wholesale on one table's transient error
(invariant 13). The version-GC loop now records a per-table failure on
its stats row (error: Some) and logs it rather than collecting into a
Result that aborts; reconcile_orphaned_branches isolates per-table and
commit-graph failures into BranchReconcileStats.failures. The CLI reports
any failed tables and tells the user to rerun cleanup. Addresses the
Devin review finding. Turns the single-table-failure test green.

* test(failpoints): red — branch_create heals commit-graph zombie + is atomic

Add the branch_delete.before_commit_graph_reclaim failpoint hook and two
regression tests: (a) recreating a name whose delete left a commit-graph
zombie must succeed (today it dies on Lance's internal Clone error), and
(b) branch_create must roll back the manifest branch when the derived
commit-graph branch fails (today it leaves the manifest branch created
while returning Err). Both fail now; green with the next commit. The
existing branch_create_failpoint_triggers test still passes.

* fix(branch): make branch_create atomic + heal commit-graph zombie

branch_create now flips the manifest authority first, then creates the
derived commit-graph branch in create_commit_graph_branch, force-dropping
any orphaned commit-graph ref left by an incomplete prior delete (the
manifest branch is fresh, so a same-named commit-graph branch is provably
a zombie). If commit-graph creation fails, the manifest branch is rolled
back so the name never half-exists. Addresses the Codex review finding.
Turns the two branch_create red tests green; existing tests unaffected.

* test(failpoints): red — fork collision misclassifies live concurrent fork

Add the fork.before_classify failpoint hook and a concurrency test: when
a concurrent first-write legitimately wins the fork race, the loser must
get a retryable refresh-and-retry, not the misleading run-cleanup orphan
error. Today the version-comparison misclassifies the live fork as an
orphan (the Cursor finding). Goes green with the next commit.

* fix(branch): manifest-arbitrated fork-collision classification

Classify a fork collision by the manifest authority instead of comparing
Lance branch versions. Before forking, open_owned_dataset_for_branch_write
re-reads the live manifest: if the table is already forked on the active
branch, a concurrent first-write won and the loser gets a retryable
refresh-and-retry (not a misleading orphan error). fork_branch_from_state
no longer guesses from versions — a create collision past that check is
an orphan, so it returns the actionable cleanup error. Addresses the
Cursor finding; turns the live-concurrent-fork test green, zombie path
unchanged.

* test(failpoints): close branch-lifecycle test gaps

Three coverage additions for the branch-delete work (behavior already
correct; these lock it in and catch regressions):

- cleanup_isolates_reconcile_failure: inject a force-delete failure into
  the reconcile loop (new cleanup.reconcile_fork hook) and assert the
  sweep continues + converges on re-run. Directly covers the reconcile
  loop the Devin finding was about (previously only version-GC was).
- cleanup_reclaims_orphaned_commit_graph_branch: forge a commit-graph
  orphan via the delete reclaim failpoint and assert cleanup's
  reconcile_commit_graph_orphans drops it (previously untested).
- fork_collision_with_live_concurrent_fork_is_retryable: replace the
  fixed 300ms sleep with a deterministic readiness signal (cfg_callback +
  compare_exchange atomics) so the two-writer ordering can't flake.

Full failpoints suite 31/0.
2026-06-01 13:28:38 +02:00
Ragnor Comerford
2d5c4b1202
docs: rename runs.md/runs.rs → writes and repoint all references (#131)
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The Run state machine was removed in MR-771 (v0.4.0); `docs/dev/runs.md`
and `crates/omnigraph/tests/runs.rs` have since documented and tested the
direct-publish write path, so the "runs" name was misleading.

- git mv docs/dev/runs.md → docs/dev/writes.md (reframe H1 + intro;
  keep MR-771 history note)
- git mv crates/omnigraph/tests/runs.rs → tests/writes.rs (reframe header)
- repoint every runs.md / runs.rs reference across docs, AGENTS.md, and
  source comments
- fix four pre-existing broken `docs/runs.md` links (the file never lived
  at that path) to `docs/dev/writes.md`
- fix the stale v0.4.0 anchor to the live section

No behavior change: every source edit is a comment. Engine builds and the
renamed test passes 25/25; scripts/check-agents-md.sh passes.

The run-removal cleanup itself (run_registry.rs guard, __run__ prefix) is
deferred to MR-770.
2026-05-30 23:20:56 +02:00
devin-ai-integration[bot]
1a4d2cee97
feat: inline query strings in CLI and HTTP server (#110)
* feat(MR-656): inline query strings in CLI and HTTP server

CLI:
- Add -e / --query-string <STRING> to omnigraph read and omnigraph change
- Exactly one of --query, --query-string, --alias is required (3-way XOR)
- Empty --query-string is rejected with a clear error

HTTP:
- New POST /query (read-only, clean field names: query/name/params/branch/snapshot)
- Mutations on /query are rejected with 400 -- use POST /change instead
- ChangeRequest fields polished: query (alias query_source), name (alias query_name)
- POST /read and POST /change remain byte-compatible for existing clients

Tests:
- cli.rs: -e happy-path on read/change, mutex error vs --query, empty -e rejected
- system_local.rs: inline -e read and -e change exercise the local flow
- system_remote.rs: inline -e read/change over HTTP plus direct /query 200/400
- server.rs: /query 200, /query 400 on mutation, /change legacy field alias
- openapi.rs: new /query path, QueryRequest schema, ChangeRequest field-name polish

Docs: cli.md (-e examples), cli-reference.md (read/change rows), server.md (/query)
Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* feat(MR-656): rename read/change to query/mutate with deprecation signals

HTTP server:
- Add POST /mutate as canonical write endpoint (pairs with POST /query).
- Mark POST /read and POST /change as deprecated. Three-channel signal:
  * OpenAPI: `deprecated: true` on the operation (every codegen flags
    the generated SDK method).
  * RFC 9745: response `Deprecation: true` header on every response.
  * RFC 8288: response `Link: </successor>; rel="successor-version"`
    pointing at /query and /mutate respectively.
- Share business logic across /mutate and /change via run_mutate(); the
  /change wrapper is the only place that adds the deprecation headers.
- ChangeRequest field aliases (query_source/query_name) preserved.
- AliasCommand serde now accepts `query`/`mutate` alongside `read`/`change`.

CLI:
- Promote `omnigraph query` / `omnigraph mutate` to top-level canonical
  subcommands (clap visible_alias keeps `omnigraph read` / `omnigraph
  change` working forever).
- Promote `omnigraph lint` / `omnigraph check` to top-level (was nested
  under `omnigraph query lint`, which is now a deprecated argv shim that
  rewrites to the canonical form).
- Argv-level preprocessing prints a one-line deprecation warning to
  stderr when any legacy spelling is used. Canonical names are silent.

Tests:
- Server: /mutate works, /change emits Deprecation+Link headers, /read
  emits Deprecation+Link headers, /query carries no deprecation signal.
- OpenAPI: /read and /change flagged deprecated; /query and /mutate not.
- CLI: canonical `lint` matches deprecated `query lint` / `query check`
  output; `read` / `change` print deprecation warnings.

Docs:
- cli.md: new canonical examples; "Deprecated names" migration table.
- cli-reference.md: top-level table updated; aliases.<name>.command
  accepts both legacy and canonical spellings.
- server.md: endpoint inventory shows /query and /mutate as canonical
  and /read and /change as deprecated; dedicated section explains the
  three-channel deprecation signal.
- og-cheet-sheet.md: use new `omnigraph lint` / `omnigraph check`.
- openapi.json regenerated.

Migration is purely cosmetic — every deprecated form continues to work
indefinitely; only the spelling changes.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* fix(MR-656): address Devin Review findings on /query and /change

Two issues raised by Devin Review on PR #110:

1. `POST /query` mutation-rejection error pointed at the deprecated
   `/change` endpoint instead of the canonical `/mutate`. Fixed in
   three places: the runtime error message in `server_query`, the
   utoipa 400-response description, and the handler doc comment. The
   `QueryRequest` schema docstrings in `api.rs` got the same update so
   the openapi.json bodies match. Server and openapi tests updated.

2. `execute_change_remote` serialized `ChangeRequest` directly, which
   emits the new canonical field names `query` / `name` on the wire.
   `#[serde(alias = "query_source")]` only affects deserialization, so
   a newer CLI talking to an older server would have its `/change`
   POST body fail with "missing field: query_source". Fixed by
   extracting a `legacy_change_request_body` helper that hand-rolls
   the JSON with the legacy keys (`query_source` / `query_name`), the
   same byte-stable contract `execute_read_remote` already uses
   against `/read`. Added two unit tests on the helper to lock the
   wire shape in.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* docs(dev): RFC 001 — inline + stored queries, envelope, MCP

Tracked artifact consolidating the design across MR-656 (this branch),
MR-976 (Phase 1 envelope hardening parent, with MR-977/978/979/980
sub-issues), and MR-969 (stored queries + MCP).

Sections:

* Two paths, one engine — inline `/query` + `/mutate` (this PR) coexist
  with stored `/queries/{name}` (MR-969). Same `run_query` / `run_mutate`
  backend (the fold-in landed in the previous commit).
* Request envelope ("before") — Idempotency-Key, If-Match, X-Deadline,
  X-Trace-Id, expect, dry_run, fields. Phase 1 ships the load-bearing
  subset on `/mutate`.
* Response envelope ("after") — audit_id, snapshot_id, commit_id, stats,
  warnings. Closes the provenance loop today's `ChangeOutput` leaves
  open.
* `.gq` pragmas — `@description`, `@returns`, `@mcp`. Source-of-truth
  for the stored-query agent contract; no separate YAML registry.
* Multi-graph MCP — per-graph `/graphs/{id}/mcp/tools` + `/mcp/invoke`.
  Token binds to one graph by default; cross-graph agents loop.
* Cedar split — `read`/`change` for inline, `invoke_query` for stored.
  Operators deny ad-hoc for agent groups while keeping curated tool
  list open.
* Rejected alternatives — per-env override files, compiled bundles,
  tool-name prefixing across graphs, body-field graph dispatch.

Index entry added under "Active Implementation Plans" so future agents
land on the RFC before touching queries / mutations / envelope code.
`scripts/check-agents-md.sh` clean (35 links, 34 docs).

* docs(server): clarify why run_query lacks AppState parameter

run_mutate takes state for workload admission; run_query doesn't because
reads aren't admission-gated today. Mark the asymmetry as intentional and
flag the two future events that would grow the signature: Phase 1's
`expect: { max_rows_scanned: N }` budget (MR-976) or per-actor admission
extending to stored-read invocations (MR-969). Prevents the natural
"make these symmetrical" follow-up.

* refactor(server): run_query / run_mutate take &ResolvedActor

Replace `Option<Extension<ResolvedActor>>` in the helpers with
`Option<&ResolvedActor>`. Saves MR-969's stored-query handler from
wrapping a bare actor in axum's `Extension(...)` before calling.
Handler signatures (`server_query`, `server_read`, `server_mutate`,
`server_change`) keep `Option<Extension<ResolvedActor>>` because that
is what axum injects, and unwrap at the call site with
`actor.as_ref().map(|Extension(actor)| actor)`.

Net: -13/+10 LOC, 89/0 server tests pass.

* docs(releases): v0.6.0 — describe inline + canonical-named queries (MR-656)

Extend the v0.6.0 release notes to cover the third piece of work landing
alongside the graph terminology rename and multi-graph server mode:
canonical-named `POST /query` and `POST /mutate` endpoints, the CLI's
new `-e/--query-string` flag, the top-level promotion of `lint` /
`check`, and the three-channel deprecation signal on `/read` and
`/change` (OpenAPI `deprecated: true` + RFC 9745 + RFC 8288).

Additions:

* Top blurb: "Two pieces" -> "Three pieces" with a bullet describing
  the rename + inline flow.
* Breaking Changes: new "Query / mutation rename" subsection covering
  the `ChangeRequest` field rename (with the back-compat serde aliases
  and the CLI's `legacy_change_request_body` byte-stable wire helper)
  and the `omnigraph query lint` -> `omnigraph lint` move.
* New: 5 bullets — the two endpoints, the CLI subcommands, the `-e`
  flag, the deprecation signal channels, the widened `aliases.<name>.command`
  vocabulary.
* User Impact: one bullet making explicit that the rename is cosmetic
  on the client side and migration is voluntary.
* Documentation: pointers to the updated `server.md` / `cli.md` /
  `cli-reference.md` and the new `docs/dev/rfc-001-queries-envelope-mcp.md`.

+15/-1 lines. `./scripts/check-agents-md.sh` clean.

* refactor(cli): demote `check` from visible_alias to deprecation shim

`omnigraph check` was a clap `visible_alias` on `lint`, advertised in
`--help` as an equivalent canonical name. Per MR-981 §6 (long-form
flags as canonical, short forms as visible aliases), visible aliases
on subcommand names hurt agent CX: agents emit either spelling
depending on training-data drift, and there's no length signal
pointing at the canonical name.

Changes:

* Remove `#[command(visible_alias = "check")]` from the `Lint` variant.
  `omnigraph --help` now shows only `lint`.
* Add bare `check` to `rewrite_deprecated_argv` so `omnigraph check
  <args>` still works — it rewrites to `omnigraph lint <args>` and
  emits a one-line stderr deprecation warning, matching the existing
  pattern for `read` / `change` / `query lint` / `query check`.
* Fix the nested `query check` shim to substitute `check` -> `lint` in
  the rewritten argv (previously it relied on `check` being a
  visible_alias to reach the `Lint` variant).
* New test `deprecated_check_top_level_rewrites_to_lint` covers: bare
  `check` produces identical stdout to `lint`, emits the deprecation
  warning, and `check` does NOT appear as an alias in `omnigraph
  --help`.
* Release notes updated to reflect the deprecation-shim treatment and
  cross-reference MR-981 §6 reasoning.

Cargo / Go users typing `check` still work indefinitely; one stderr
nudge per invocation teaches the canonical name. Agents see only
`lint` in `--help --json` so they emit one canonical form.

67/0 omnigraph-cli tests pass; 39 workspace test suites green.

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Ragnor Comerford <ragnor.comerford@gmail.com>
Co-authored-by: Ragnor Comerford <hello@ragnor.co>
2026-05-29 13:41:54 +02:00
Ragnor Comerford
e0f13b32c5
(feat): multi-graph server mode (#119)
* mr-668: add GraphId newtype + Cloud-mode forward identity stubs (PR 1/10)

PR 1 of the MR-668 multi-graph server work. Pure types, no runtime
behavior changes yet.

Ships the validated identity vocabulary that the rest of the implementation
will consume:

- `GraphId(String)` — `^[a-zA-Z0-9-]{1,64}$`, leading underscore rejected
  (engine reserves every `_*` filename), reserved route names rejected
  (`policies`, `healthz`, `openapi`, `openapi.json`, `graphs`). Validation
  lives in `try_from` only; serde `Deserialize` re-runs it so JSON payloads
  cannot bypass.
- `TenantId(String)` — same regex shape as GraphId. `None` in Cluster
  mode; reserved for Cloud mode (RFC 0003) where it carries the OAuth
  `org_id` claim.
- `GraphKey { tenant_id: Option<TenantId>, graph_id }` — the registry
  HashMap key. `cluster()` constructor for the Cluster-mode default.
- `Scope` enum with `Full` variant — Cluster mode default; RFC 0004 will
  extend with OAuth scopes (`graph:read`/`write`/`admin`/`*`).
- `AuthSource` enum with `Static` variant — Cluster mode default; RFC
  0001 step 1 will add `Oidc`.
- `ResolvedActor { actor_id, tenant_id, scopes, source }` — replaces the
  upcoming refactor of `AuthenticatedActor(Arc<str>)` in PR 4a.

Per MR-668 design decision 13: ship the Cloud-mode forward type shapes
now (no `TokenVerifier` trait yet — that's RFC 0001 step 1) so handler
signatures stay stable across the Cluster → Cloud trajectory. `Scope`
and `AuthSource` use `#[non_exhaustive]` so future variants don't break
caller matches.

Tests: 26 new (15 graph_id + 11 identity), all passing. No regression
in the existing 36 server library tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: Omnigraph::init error-path cleanup + three failpoints (PR 2a/10)

PR 2a of the MR-668 multi-graph server work. Bug fix: a partially-failed
`Omnigraph::init` previously left orphan schema files at the graph URI,
making the URI unusable for a retry (the next `init` would refuse because
`_schema.pg` already exists).

Changes:

1. `init_with_storage` now wraps the I/O phase. On any error from
   `init_storage_phase`, calls `best_effort_cleanup_init_artifacts` to
   remove the three schema files before returning the original error:
   - `_schema.pg`
   - `_schema.ir.json`
   - `__schema_state.json`
   Cleanup is best-effort: a failure to delete is logged via
   `tracing::warn` but does NOT mask the init error.

2. Three failpoints added at the init phase boundaries:
   - `init.after_schema_pg_written`
   - `init.after_schema_contract_written`
   - `init.after_coordinator_init`

3. Four new failpoint tests in `tests/failpoints.rs` pin the cleanup
   behavior at each boundary plus the "original error wins over cleanup
   error" contract. All 23 failpoint tests pass.

Coverage gap (documented in code comments):
Lance per-type datasets and `__manifest/` directory created by
`GraphCoordinator::init` are NOT cleaned up after a coordinator-init-phase
failure. Recursive directory deletion requires `StorageAdapter::delete_prefix`,
which was deferred along with `DELETE /graphs/{id}` (originally PR 2b). When
that primitive lands, the third failpoint test can be tightened to assert
the graph root is fully empty.

Tests: 4 new (init_failpoint_*), all 23 failpoint tests green. No
regression in the 105 engine library tests or 64 end_to_end tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: add GraphHandle + GraphRegistry data structure (PR 3/10)

PR 3 of the MR-668 multi-graph server work. Pure data structure — no
routing changes yet (that's PR 4a).

New file: `crates/omnigraph-server/src/registry.rs`

- `GraphHandle { key: GraphKey, uri: String, engine: Arc<Omnigraph>,
  policy: Option<Arc<PolicyEngine>> }` — the per-graph state that the
  routing middleware (PR 4a) will inject as a request extension.
- `RegistrySnapshot { graphs: HashMap<GraphKey, Arc<GraphHandle>> }` —
  immutable snapshot; replaced atomically via `ArcSwap`.
- `GraphRegistry { snapshot: ArcSwap<_>, mutate: Mutex<()> }` — lock-free
  reads, mutex-serialized mutations.
- `RegistryLookup { Ready(Arc<GraphHandle>) | Gone }` — two-valued, no
  `Tombstoned` variant since DELETE is deferred in v0.7.0 scope.
- `InsertError { DuplicateKey | DuplicateUri }` — both rejection cases
  for create-graph (maps to HTTP 409 in PR 7).
- Methods: `new`, `from_handles` (bulk startup-time init), `get`, `list`,
  `len`, `insert`.

Race semantics pinned by three multi-thread tests:
- `concurrent_insert_same_key_exactly_one_succeeds` — N=8 spawned
  inserts with the same key; exactly 1 returns Ok, 7 return DuplicateKey.
- `concurrent_insert_distinct_keys_all_succeed` — N=8 spawned inserts
  with distinct keys; all succeed.
- `concurrent_reads_during_inserts_see_consistent_snapshots` — reader
  loop concurrent with sequential writes; every listed handle's key
  resolves via `get()` (no torn state).

Why no tombstones field: `DELETE /graphs/{id}` is deferred to bound
the scope of v0.7.0. Without a delete endpoint, there's no use for
tombstones — every key in the registry is `Ready`, and every key
not in the registry is `Gone`. When DELETE lands later, the
`Tombstoned` variant + `tombstones: HashSet<GraphKey>` slot in
additively without breaking caller signatures (the `Gone` variant
remains the "not currently active" case).

Why `tokio::sync::Mutex`: insert is async because PR 7's flow holds
this mutex across the atomic YAML rewrite step (file I/O). std::Mutex
would footgun across .await.

Dependency additions: `arc-swap = { workspace = true }`,
`thiserror = { workspace = true }` (used by InsertError).

Tests: 12 new (12 passing). 74 server lib tests total green
(62 from PR 1 + 12 new). Clippy clean on server crate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: router restructure + handler refactor for multi-graph (PR 4a/10)

PR 4a of the MR-668 multi-graph server work. The heaviest single PR —
rewires every handler to extract `Arc<GraphHandle>` from a routing
middleware, replaces `AuthenticatedActor(Arc<str>)` with `ResolvedActor`
everywhere, and adds the `ServerMode` discriminator.

Behavior changes:
- **Single mode** (legacy `omnigraph-server <URI>`): flat routes
  (`/snapshot`, `/read`, `/branches`, …) continue to work exactly as
  v0.6.0. Internally, the registry holds a single handle keyed by the
  sentinel `SINGLE_GRAPH_KEY_ID = "default"`; routing middleware injects
  that handle on every request. No HTTP-visible change.
- **Multi mode** (new): routes nest under `/graphs/{graph_id}/...`.
  Routing middleware extracts the graph id from the path, looks it up
  in the registry, and injects the handle. 404 if not found.
  (Multi-mode startup itself lands in PR 5; this PR provides the
  router-side wiring.)

AppState refactor:
- `engine: Arc<Omnigraph>` and `policy_engine: Option<Arc<PolicyEngine>>`
  fields removed — both now live inside `GraphHandle` in the registry.
- `mode: ServerMode { Single { uri } | Multi { config_path } }` added.
- `registry: Arc<GraphRegistry>` added.
- `server_policy: Option<Arc<PolicyEngine>>` added (placeholder for
  management endpoints in PR 6b; unused today).
- Existing constructors (`new`, `new_with_bearer_token{s,_and_policy}`,
  `new_with_workload`, `open*`) build a single-mode AppState
  internally and remain source-compatible. Tests that constructed
  AppState via these constructors continue to work.
- `with_policy_engine` post-construction setter — rebuilds the
  single-mode handle with the policy attached. Engine-layer
  enforcement is NOT reinstalled (matches the old single-field
  semantics; `open_with_bearer_tokens_and_policy` is the path that
  installs both layers).
- `new_multi` constructor added for PR 5's startup loop.
- `uri()` now returns `Option<&str>` (Some in single, None in multi).

Routing middleware:
- `resolve_graph_handle` injects `Arc<GraphHandle>` as a request
  extension. Mode-aware: single returns the only handle; multi parses
  `/graphs/{graph_id}/...` from the URI. Returns 404 in multi mode
  when the graph id is unregistered. Records `graph_id` on the
  current tracing span.
- `require_bearer_auth` updated to insert `ResolvedActor` (was
  `AuthenticatedActor`).

Handler refactor — every protected handler:
- Gains `Extension(handle): Extension<Arc<GraphHandle>>` param.
- Replaces `state.engine` → `handle.engine`.
- Replaces `state.policy_engine()` → `handle.policy.as_deref()`.
- Replaces `state.uri()` → `handle.uri.as_str()` (or `.clone()`
  where String is needed).
- Replaces `Arc::clone(&state.engine)` → `Arc::clone(&handle.engine)`
  (the spawn-and-clone pattern in `server_export` — proof that a
  long-running export survives the registry being mutated later).

authorize_request signature:
- Was: `(state: &AppState, actor: Option<&AuthenticatedActor>, request: PolicyRequest)`.
- Now: `(actor: Option<&ResolvedActor>, policy: Option<&PolicyEngine>, request: PolicyRequest)`.
- Per-graph callers pass `handle.policy.as_deref()`. The (future PR 6b)
  management endpoints will pass `state.server_policy.as_deref()`.

MR-731 invariant preserved:
- The single chokepoint `request.actor_id = actor.actor_id.as_ref().to_string()`
  inside `authorize_request` still overwrites any client-supplied
  actor identity. Regression test
  `actor_id_resolves_from_bearer_token_ignoring_client_supplied_headers`
  at `tests/server.rs:1114-1216` passes unchanged.

Tests: 0 new (the registry race tests in PR 3 already cover the
data structure; this PR exercises them indirectly via the existing
test suite). 74 lib + 57 server integration + 60 openapi = 191 tests
green. Clippy clean.

LOC: +397 insertions, -153 deletions in `crates/omnigraph-server/src/lib.rs`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: OpenAPI multi-mode cluster filter (PR 4b/10)

PR 4b of the MR-668 multi-graph server work. In multi mode, the served
`/openapi.json` reports cluster routes (`/graphs/{graph_id}/...`) instead
of the legacy flat protected paths — matching what `build_app` actually
mounts (PR 4a's `Router::nest`). Single mode is unchanged.

Implementation:
- New `server_openapi` branch: when `state.mode()` is `Multi`, call
  `nest_paths_under_cluster_prefix(&mut doc)` after `ApiDoc::openapi()`.
- The rewrite consumes `doc.paths.paths`, then for every path-item:
  - If the path is in `ALWAYS_FLAT_PATHS` (`/healthz` for now), keep
    it flat.
  - Otherwise, prefix every operation_id with `cluster_` and reinsert
    the item at `/graphs/{graph_id}<original_path>`.
- Single mode hits no extra work — the path map is untouched.
- The static `ApiDoc::openapi()` still emits the flat surface, so
  in-process callers (the existing `openapi_json()` helper in tests)
  see the unmodified spec.

Why cluster_ prefix on operation IDs: OpenAPI specs require unique
operation_ids across the document. With both flat (single-mode) and
cluster (multi-mode) surfaces ever co-existing in a generated SDK,
the prefix prevents collision. The current served doc only carries
one surface, so the prefix is forward-compat with potential future
dual-surface generation.

Tests: 6 new in `tests/openapi.rs`, all via the `/openapi.json` route
(not the static `ApiDoc::openapi()` helper):
- `multi_mode_openapi_lists_cluster_paths` — every protected path
  appears as a cluster variant.
- `multi_mode_openapi_drops_flat_protected_paths` — flat protected
  paths are absent.
- `multi_mode_openapi_keeps_healthz_flat` — `/healthz` survives.
- `multi_mode_openapi_prefixes_operation_ids_with_cluster` — every
  cluster operation_id starts with `cluster_`.
- `multi_mode_operation_ids_are_unique` — no operation_id collisions.
- `single_mode_openapi_unchanged_by_cluster_filter` — single mode
  still emits the legacy flat surface (regression).

New test helper `app_for_multi_mode(graph_ids)` exercises the new
`AppState::new_multi` constructor from PR 4a — first user of multi-mode
construction outside of unit tests.

Result: 66 openapi tests + 57 server integration tests + 74 lib tests
= 197 green. No regression in the existing OpenAPI drift check
(`openapi_spec_is_up_to_date` still validates the static flat surface
matches the committed openapi.json).

LOC: +67 in lib.rs (rewrite logic), +219 in tests/openapi.rs (test
suite + helper).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: multi-graph startup + mode inference (PR 5/10)

PR 5 of the MR-668 multi-graph server work. This is the first PR that
makes multi mode actually usable end-to-end: operators invoking
`omnigraph-server --config omnigraph.yaml` with a non-empty `graphs:`
map and no single-mode selector now get a running multi-graph server.

Mode inference (MR-668 decision 2, four-rule matrix in
`load_server_settings`):
  1. CLI `<URI>` positional        → Single
  2. CLI `--target <name>`         → Single (URI from graphs.<name>)
  3. `server.graph` in config      → Single (URI from graphs.<name>)
  4. `--config` + non-empty `graphs:` + no single-mode selector
                                   → Multi (all entries in `graphs:`)
  5. otherwise                     → error with migration hint

Rule 5's error message names every escape hatch so operators can fix
their invocation without grepping docs.

Config schema extensions:
  - `TargetConfig.policy: PolicySettings` (per-graph Cedar policy file).
    `#[serde(default)]` so existing single-graph YAMLs keep parsing.
  - `ServerDefaults.policy: PolicySettings` (server-level Cedar policy
    for management endpoints — loaded in PR 5, wired into `GET /graphs`
    in PR 6b).
  - `OmnigraphConfig::resolve_target_policy_file(name)` and
    `resolve_server_policy_file()` helpers — both resolve relative to
    the config file's `base_dir`.

Public types added to `omnigraph-server`:
  - `ServerConfigMode { Single { uri, policy_file } | Multi { graphs,
    config_path, server_policy_file } }`.
  - `GraphStartupConfig { graph_id, uri, policy_file }` — one entry
    per graph in multi mode.

`ServerConfig` shape change:
  - WAS: `{ uri: String, bind, policy_file, allow_unauthenticated }`.
  - NOW: `{ mode: ServerConfigMode, bind, allow_unauthenticated }`.
  - Breaking for any code that constructs `ServerConfig` directly.
    `main.rs` is unaffected (uses `load_server_settings`).

`serve()` now forks on `ServerConfig.mode`:
  - Single: existing flow via `AppState::open_with_bearer_tokens_and_policy`.
  - Multi: parallel open via `futures::stream::iter(graphs)
    .map(open_single_graph).buffer_unordered(4).collect()`. Bound 4 is
    a rule-of-thumb for I/O-bound work — at N≤10 this trades startup
    latency for a small amount of concurrent S3/Lance open pressure.
    Fail-fast: first open error aborts startup; in-flight opens drop
    their engine via Arc (Lance datasets close cleanly).

New helper `open_single_graph(GraphStartupConfig)`:
  - Validates `GraphId` per the regex in PR 1.
  - `Omnigraph::open(uri).await` with descriptive error context.
  - Loads per-graph policy file and re-applies it via
    `Omnigraph::with_policy` (engine-layer enforcement, MR-722).
  - Returns `Arc<GraphHandle>` ready for the registry.

Routing middleware bug fix:
  - `Router::nest("/graphs/{graph_id}", inner)` rewrites
    `request.uri().path()` to the inner suffix (e.g. `/snapshot`).
    The previous middleware tried to parse `{graph_id}` from
    `request.uri().path()` and got 400 instead of 200. Fixed by reading
    from `axum::extract::OriginalUri` request extension, which preserves
    the pre-rewrite URI.
  - Caught by the two new tests
    `cluster_routes_dispatch_per_graph_handle` and
    `cluster_route_for_unknown_graph_returns_404`.

Tests (14 new, all passing):
  - Four-rule matrix: one test per branch + the joint case
    `mode_inference_cli_uri_overrides_graphs_map` + the empty-graphs-map
    error case.
  - Per-graph + server-level policy file path resolution.
  - Reserved `GraphId` rejection at startup.
  - End-to-end multi-graph routing: two graphs side by side, each
    cluster route hits the right engine.
  - Unknown graph id under cluster prefix → 404.
  - Flat routes 404 in multi mode.

Inline `ServerConfig` test (`serve_refuses_to_start_in_state_1_without_unauthenticated`)
and three `server_settings_*` tests updated to the new `mode` shape.

Result: 211 server tests green (74 lib + 71 integration + 66 openapi),
MR-731 regression test still pinned and passing.

LOC: +45 config.rs, +281 lib.rs (net), +395 tests/server.rs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: Cedar resource-model refactor (PR 6a/10)

PR 6a of the MR-668 multi-graph server work. Policy-crate-only refactor —
no HTTP handler changes, no operator-supplied policy.yaml changes. Sets
up the chassis that PR 6b's `GET /graphs` consumes.

Two new `PolicyAction` variants:
  - `GraphCreate` — gates `POST /graphs` (deferred behavioral PR).
  - `GraphList`   — gates `GET /graphs` (lands in PR 6b).

Note: `GraphDelete` is intentionally NOT added in this PR. `DELETE
/graphs/{id}` is deferred from MR-668's v0.7.0 scope to bound complexity
(no `delete_prefix`, no tombstone, no `RegistryLookup::Tombstoned`).
Adding the Cedar action without a consumer would be the same kind of
"dead vocabulary" trap the `Admin` variant already documents.

New `PolicyResourceKind { Graph, Server }` enum, plus a
`PolicyAction::resource_kind()` method that classifies every action.
Per-graph actions (Read, Change, BranchCreate, …) bind to
`Omnigraph::Graph::"<graph_label>"`; server-scoped actions
(GraphCreate, GraphList) bind to the singleton
`Omnigraph::Server::"root"`. `Admin` stays classified as per-graph for
now — MR-724 will pick the final shape when the first consumer surface
ships.

Cedar schema string additions:
  - `entity Server;`
  - `action "graph_create" appliesTo { principal: Actor, resource: Server, ... }`
  - `action "graph_list"   appliesTo { principal: Actor, resource: Server, ... }`

Compiler updates:
  - `compile_policy_source` picks the resource literal based on the
    action's `resource_kind`. Existing graph-only policies generate
    the same Cedar source as before — pinned by
    `per_graph_rules_continue_to_work_alongside_server_rules`.
  - `compile_entities` includes the `Server::"root"` entity only when
    a rule references a server-scoped action. Keeps test assertions
    for graph-only policies tight.
  - `PolicyEngine::authorize` builds the right resource UID at
    request time based on `request.action.resource_kind()`.

Validation rules added to `PolicyConfig::validate`:
  - A rule may not mix server-scoped and per-graph actions (different
    resource kinds need different `permit` clauses).
  - Server-scoped actions cannot have `branch_scope` or
    `target_branch_scope` — there's no branch context at the server
    level.

Operator impact: zero. The Cedar schema `Omnigraph::Server` entity is
internally referenced by `compile_policy_source`; operator policy.yaml
files only declare actions in `rules[].allow.actions` and never
reference the resource entity directly. Decision 6's "internal rename
only; operator policies unaffected" contract is preserved and pinned
by `per_graph_rules_continue_to_work_alongside_server_rules`.

Tests: 5 new (11 policy tests total, up from 6):
  - `graph_list_action_authorizes_against_server_resource`
  - `graph_create_action_authorizes_against_server_resource`
  - `server_scoped_rule_cannot_use_branch_scope`
  - `rule_mixing_server_and_per_graph_actions_is_rejected`
  - `per_graph_rules_continue_to_work_alongside_server_rules`

No regression: 145 server tests (74 lib + 71 integration) still green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: GET /graphs endpoint + per-graph policy wire-up (PR 6b/10)

PR 6b of the MR-668 multi-graph server work. First management endpoint —
`GET /graphs` lists every graph registered with the server, gated by the
server-level Cedar policy from PR 6a.

New API shapes (in `omnigraph-server::api`):
  - `GraphInfo { graph_id, uri }` — one entry per registered graph.
  - `GraphListResponse { graphs: Vec<GraphInfo> }` — sorted alphabetically
    by `graph_id` for deterministic output.

Handler `server_graphs_list`:
  - Mounted at `GET /graphs` in both modes.
  - Single mode: returns 405 (resource exists in the API surface, just
    not operational without a `graphs:` map). 405 chosen over 404 so
    clients see "resource exists, wrong context" rather than "no such
    resource".
  - Multi mode: requires bearer auth (when configured); Cedar-gated by
    `PolicyAction::GraphList` against `Omnigraph::Server::"root"`
    (PR 6a's chassis). Returns the sorted registry list.

Cedar gate composition:
  - When no `server.policy.file` is configured, the MR-723 default-deny
    falls through: `GraphList` is not `Read`, so an authenticated actor
    without a server policy gets 403. This is the right default — don't
    expose the registry until the operator explicitly authorizes it.
  - When a server policy is configured, Cedar evaluates the rule. The
    test `get_graphs_with_server_policy_authorizes_per_cedar` pins the
    admin-allow / viewer-deny split.

Routing:
  - New `management` sub-router holding `/graphs` (auth-required, no
    `resolve_graph_handle` middleware — operates on the registry, not
    a single graph).
  - Single mode merges flat protected routes + management.
  - Multi mode merges nested `/graphs/{graph_id}/...` + management.

OpenAPI:
  - `server_graphs_list` registered in `ApiDoc::paths(...)`.
  - `EXPECTED_PATHS` in `tests/openapi.rs` gains `/graphs`.
  - `openapi.json` regenerated (auto-tracked by
    `openapi_spec_is_up_to_date` in CI).

Tests: 4 new in `tests/server.rs::multi_graph_startup`:
  - `get_graphs_lists_registered_graphs_in_multi_mode`
  - `get_graphs_returns_405_in_single_mode`
  - `get_graphs_requires_bearer_auth_when_configured`
  - `get_graphs_with_server_policy_authorizes_per_cedar`

What's NOT in this PR (deferred):
  - Per-graph policy enforcement is wired through `handle.policy`
    (PR 4a already did this); PR 6b doesn't add new per-graph
    behavior beyond making sure the server policy lookup composes
    cleanly alongside it.
  - `POST /graphs` (PR 7) and `DELETE /graphs/{id}` (out of scope
    for v0.7.0).
  - CLI `omnigraph graphs list` (PR 8 will add).

Result: 215 server tests green (74 lib + 66 openapi + 75 integration),
11 policy tests green. MR-731 spoof regression preserved across all
this work.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: POST /graphs runtime create endpoint (PR 7/10)

PR 7 of the MR-668 multi-graph server work. Operators can now add a
graph to a running multi-graph server without restarting:

  curl -X POST http://server/graphs \
    -H "Content-Type: application/json" \
    -d '{
          "graph_id": "beta",
          "uri": "/data/beta.omni",
          "schema": { "source": "node Person { name: String @key }\n" },
          "policy": { "file": "./policies/beta.yaml" }
        }'

DELETE remains deferred (out of v0.7.0 scope per the trimmed plan —
no `delete_prefix`, no tombstones).

Body shape (decision 7):
  - Nested `schema: { source: "..." }` (mirrors the `policy: { file }`
    pattern; leaves room for future fields without breakage).
  - Optional nested `policy: { file: "..." }` for per-graph Cedar.
  - 32 MiB body limit (reuses `INGEST_REQUEST_BODY_LIMIT_BYTES`).
  - Asymmetric with `SchemaApplyRequest` which keeps flat
    `schema_source: String` — documented in api.rs.

Atomic YAML rewrite + drift detection:
  - New `config::rewrite_atomic(path, new_config, expected_hash)`:
    flock → re-read + hash check → serialize → write `.tmp` → fsync
    → rename → fsync parent dir. Returns the new hash for the caller
    to update its in-memory baseline.
  - New `config::hash_config_file(path)` — SHA-256 of the on-disk
    bytes, used at startup and after each rewrite.
  - New `RewriteAtomicError { Drift | Io | Serialize }` enum.
  - `AppState.config_hash: Option<Arc<Mutex<[u8;32]>>>` carries the
    in-memory baseline. Updated after every successful rewrite so
    subsequent POSTs don't false-trigger drift.
  - The mutex is `std::sync::Mutex` (brief critical section, no .await
    inside). The flock itself serializes file access process-wide
    AND across multiple server instances (defense in depth).
  - All sync I/O runs inside `tokio::task::spawn_blocking` — flock
    is sync.

Handler ordering (the load-bearing sequence):
  1. Mode check: 405 in single mode.
  2. Cedar authorize: `GraphCreate` against `Omnigraph::Server::"root"`.
  3. Validate body: `GraphId::try_from` (regex + reserved-name), empty
     schema/uri checks, per-graph policy file parse.
  4. Pre-check registry for duplicate graph_id / duplicate uri (409).
  5. `Omnigraph::init` the new engine.
  6. Atomic YAML rewrite (drift detection inside).
  7. Publish in registry (atomic re-check via `GraphRegistry::insert`).

Failure modes (documented in handler rustdoc):
  - Init fails → orphan storage at `req.uri` (PR 2a cleans up schema
    files; Lance datasets remain orphans until `delete_prefix` lands).
  - YAML rewrite fails (drift, IO) → orphan storage; YAML unchanged.
  - Registry insert fails (race) → YAML has entry but registry doesn't;
    next restart opens it cleanly.

New dependency: `fs2 = "0.4"` (workspace + omnigraph-server). POSIX-only
file locking. Linux/macOS deployment supported; Windows out of scope.

Tests (10 new in `tests/server.rs::multi_graph_startup`):
  - `post_graphs_creates_a_new_graph_end_to_end` — happy path, includes
    YAML inspection to confirm the rewrite landed.
  - `post_graphs_baseline_hash_updates_between_rewrites` — two POSTs in
    a row both succeed (drift baseline updates correctly).
  - `post_graphs_duplicate_graph_id_returns_409`
  - `post_graphs_duplicate_uri_returns_409`
  - `post_graphs_invalid_graph_id_returns_400` (reserved name)
  - `post_graphs_empty_schema_source_returns_400`
  - `post_graphs_returns_405_in_single_mode`
  - `post_graphs_yaml_drift_detection_returns_503` — operator hand-edits
    omnigraph.yaml; server refuses to clobber.
  - `hash_config_file_is_deterministic_and_detects_changes`
  - `rewrite_atomic_refuses_when_hash_drifts`

OpenAPI: `server_graphs_create` registered in `ApiDoc::paths(...)`;
openapi.json regenerated.

Result: 225 server tests green (74 lib + 66 openapi + 85 integration),
all MR-731 regressions still pinned.

LOC: ~580 lib.rs net (handler + helpers), ~120 config.rs (rewrite
machinery), +71 api.rs (request/response shapes), +332 tests/server.rs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: CLI omnigraph graphs list/create (PR 8/10)

PR 8 of the MR-668 multi-graph server work. CLI parity for the
v0.7.0 management surface: operators can now manage graphs from
the command line against a running multi-graph server.

  omnigraph graphs list --target dev --json
  omnigraph graphs create \
    --target dev \
    --graph-id beta \
    --graph-uri /data/beta.omni \
    --schema schema.pg

DELETE is intentionally absent — server-side DELETE was deferred from
v0.7.0 scope, and shipping a client subcommand for a server endpoint
that doesn't exist would be dead vocabulary. The help output, the
subcommand enum, and the test that pins it (`graphs_subcommand_help_
lists_list_and_create`) all agree.

CLI architecture (modeled on `BranchCommand`):
  - New `Command::Graphs { command: GraphsCommand }` top-level variant.
  - `GraphsCommand { List, Create }` enum.
  - List: GET `<base>/graphs`. Stdout is `<graph_id>\t<uri>` per line,
    or JSON via `--json`.
  - Create: reads `--schema <path>` from local disk, inlines as
    `schema: { source: <file> }` in the POST body (nested per
    MR-668 decision 7). Optional `--policy-file <path>` becomes
    `policy: { file: <path> }`. Returns 201 → "created graph X at Y"
    or JSON via `--json`.
  - Both subcommands reject local URI targets with a clear
    "remote multi-graph server URL" error.

New API type imports in the CLI: `GraphCreateRequest`,
`GraphCreateResponse`, `GraphListResponse`, `GraphSchemaSpec`,
`GraphPolicySpec` — all from `omnigraph-server::api`.

Tests:
  - cli.rs (4 new, non-network):
      * `graphs_subcommand_help_lists_list_and_create` — pins the
        deferral of `delete` (catches scope creep).
      * `graphs_list_against_local_uri_errors_with_remote_only_message`
      * `graphs_create_against_local_uri_errors_with_remote_only_message`
      * `graphs_create_with_missing_schema_file_errors` — pins the
        IO context in the schema-read error path.
  - system_remote.rs (1 new, `#[ignore]` like its peers):
      * `graphs_list_and_create_against_multi_graph_server` — spawns a
        multi-mode server, calls `graphs list` (sees `alpha`),
        `graphs create` (adds `beta`), `graphs list` again (sees both),
        and confirms the new graph is reachable via its cluster route.

CLI suite: 62 tests green (58 existing + 4 new). The new ignored
end-to-end test runs locally with `cargo test --ignored`.

LOC: +159 main.rs (enum + handlers), +88 cli.rs (unit tests),
+131 system_remote.rs (integration test).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: composite e2e tests, race fix, v0.7.0 release (PR 9/10)

PR 9 — the final integration PR for MR-668 multi-graph server work.
Closes the v0.7.0 release.

Composite lifecycle tests (closes gaps flagged in PR 7's coverage
review):
  - `multi_graph_lifecycle_post_query_restart_persistence` — POST a
    graph, query it via cluster route, reload the config from disk
    and confirm `load_server_settings` sees the rewritten YAML.
    Validates the "restart resolves orphans" failure-mode story.
  - `per_graph_policy_enforced_on_post_created_graph` — POST a graph
    with a per-graph policy attached, then send authenticated read
    and change requests. Per-graph Cedar enforcement fires correctly
    on a POST-created graph (engine-layer policy reinstalled via
    `Omnigraph::with_policy` inside the create flow).
  - `concurrent_post_graphs_distinct_ids_all_succeed` — 4 concurrent
    POSTs with distinct graph_ids all return 201. Caught a real
    race in `rewrite_atomic` (see below).

Race fix — `rewrite_atomic_with_modify`:

The first composite test surfaced a real bug. The old
`rewrite_atomic(path, new_config, expected_hash)` captured the
baseline hash OUTSIDE the flock, then called rewrite_atomic which
re-acquired it inside. Under concurrent writers:

  - POST A: captures baseline H0, calls rewrite_atomic.
  - POST B: captures baseline H0 too (before A's update lands).
  - A: acquires flock, on-disk == H0, writes H1, releases.
  - A: updates baseline H0 → H1.
  - B: tries to acquire flock — waits.
  - B: acquires flock. On-disk is now H1. Expected (captured
       before A finished) is H0. MISMATCH → spurious Drift error.

Worse: even if the timing happens to align, B's `updated` config
was constructed from BYTES read before the flock. B writes a config
that doesn't include A's new graph — silent data loss.

The fix: new `config::rewrite_atomic_with_modify(path, baseline,
modify)` takes a closure. Inside the flock + baseline mutex:
  1. Read on-disk bytes, hash, compare to baseline.
  2. Parse on-disk YAML.
  3. Call `modify(parsed)` to produce the new config — receives
     fresh on-disk state, returns the modification.
  4. Serialize + write + fsync + rename + update baseline.

Everything is read-modify-write under the same critical section.
Concurrent writers serialize cleanly. Test confirmed this is no
longer a race.

The old `rewrite_atomic(path, new_config, expected_hash)` API stays
for tests that don't need the read-modify-write shape; the POST
handler switches to the new shape.

Version bump v0.6.0 → v0.7.0:
  - All 5 `crates/*/Cargo.toml` (compiler, engine, policy, cli, server)
    plus their inter-crate `path` dep version constraints.
  - `Cargo.lock` regenerated by `cargo build --workspace`.
  - `AGENTS.md` "Version surveyed" line, capability matrix HTTP-server
    row updated to mention multi-graph + cluster routes + atomic YAML
    rewrite.
  - `openapi.json` regenerated.

Docs:
  - `docs/releases/v0.7.0.md` (new) — release notes with breaking
    changes, new features, deferred items (DELETE, `delete_prefix`,
    actor forwarding), and the single→multi migration recipe.
  - `docs/user/server.md` — substantial section additions for the
    two modes, mode inference, cluster endpoint table, management
    endpoints, `omnigraph.yaml` ownership contract, `POST /graphs`
    body shape + status codes.
  - `docs/user/cli.md` — `omnigraph graphs list/create` section,
    deferred-DELETE note.
  - `docs/user/policy.md` — server-scoped Cedar actions
    (`graph_create`, `graph_list`), per-graph vs server-level policy
    composition, example server-level policy.

Workspace test pass: 573 tests green across all crates. Zero
failures. MR-731 spoof regression still pinned and passing across
the entire 10-PR series.

This commit closes MR-668. v0.7.0 is ready for tagging.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: remove POST /graphs and CLI graphs create (defer runtime graph mgmt)

The POST /graphs runtime-create endpoint shipped in PR 7/10 has three
unresolved high-severity bugs:

  - flock-on-renamed-inode race: the YAML flock is taken on
    omnigraph.yaml itself, then a temp file is renamed over it.
    Cross-process writers end up locking different inodes — both
    believing they hold exclusive access.
  - duplicate-check outside the file lock: precheck runs against
    the in-memory registry only; the locked closure does
    config.graphs.insert(...) unconditionally. Concurrent same-id
    POSTs can persist the loser in YAML while the in-memory registry
    keeps the winner — they disagree after restart.
  - best_effort_cleanup_init_artifacts deletes _schema.pg /
    _schema.ir.json / __schema_state.json on any init failure. An
    accidental re-init against an existing graph's URI destroys its
    schema; subsequent open() fails at read_text(_schema.pg).

The correct fix is a Lance-style cluster catalog (reserve → init →
publish with recovery sidecars), parallel to the engine's existing
__manifest discipline. That work is out of scope for v0.7.0.

For now, disable runtime add/remove from the network and CLI surface.
Operators add graphs by editing omnigraph.yaml and restarting. The
GET /graphs read-only enumeration stays.

Removed:
- POST /graphs handler + router fragment + utoipa registration
- 13 post_graphs_* server tests + 3 composite POST tests +
  multi_mode_app_with_real_config / post_graph helpers
- CLI omnigraph graphs create subcommand + its handler + cli.rs tests
- system_remote.rs combined list+create test trimmed to list-only
- YAML rewrite infra: rewrite_atomic[_with_modify], RewriteAtomicError,
  staging_path, hash_config_file, AppState::config_hash field +
  threading through new_multi and open_multi_graph_state
- fs2 dependency (verified absent from cargo tree)
- sha2/fs2 imports in config.rs (only the rewrite path used them)
- Cedar PolicyAction::GraphCreate variant + "graph_create" match arms
  + action def in Cedar schema + graph_create_action_authorizes_against_server_resource test
- GraphCreateRequest / GraphCreateResponse / GraphSchemaSpec /
  GraphPolicySpec API types (only the POST handler / CLI imported them)

Kept:
- GET /graphs (read-only enumeration) and graph_list Cedar action
- omnigraph graphs list CLI subcommand
- All multi-graph startup, mode inference, cluster routes,
  per-graph + server-level Cedar policies
- server_settings_drive_multi_graph_startup_end_to_end (the test
  that covers operator-authored YAML + restart — the path that
  survives)
- best_effort_cleanup_init_artifacts and the three init failpoints
  (still reachable from CLI `omnigraph init`; preflight fix deferred
  as a follow-up)
- GraphRegistry::insert and its concurrency tests — production
  callers gone, but the method is the natural seam for the future
  cluster-catalog work

Also fixed (transcript issue 4):
- ALWAYS_FLAT_PATHS now includes /graphs so multi-mode OpenAPI
  advertises the management route correctly (was previously rewritten
  to /graphs/{graph_id}/graphs)
- multi_mode_openapi_keeps_healthz_flat → renamed to
  multi_mode_openapi_keeps_management_paths_flat, asserts both
  /healthz and /graphs stay flat
- multi_mode_openapi_prefixes_operation_ids_with_cluster skips
  /graphs in addition to /healthz

Doc fixes:
- docs/user/cli.md: graphs list example was --target http://...,
  but --target is a config-graph-name lookup; corrected to --uri.
  Removed the graphs create example.
- docs/user/server.md: dropped POST /graphs row, "omnigraph.yaml
  ownership", and "POST /graphs body shape" sections. Added a
  paragraph stating runtime add/remove is not exposed in v0.7.0.
- docs/user/policy.md: dropped graph_create action; reworded the
  "Configuration" line to clarify that server-scoped rules (graph_list)
  take neither branch_scope nor target_branch_scope.
- docs/releases/v0.7.0.md: rewrote release narrative — multi-graph
  mode ships; runtime add/remove deferred.
- AGENTS.md: HTTP server bullet and capability matrix row updated to
  reflect read-only GET /graphs and the operator-edit workflow.
- openapi.json regenerated; /graphs has only .get, no .post.

Diff: 17 files, +123 −1525 LOC.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: comment cleanup and policy format style

Strip "PR Na/Nb" sub-PR references throughout MR-668 surfaces — they
were useful during the 10-PR delivery sequence but rot now that the
work is in the tree. Keep the MR-668 umbrella references.

Also:
- Add explicit `when = when` and `resource_literal = resource_literal`
  named args in `compile_policy_source`'s outer `format!` to match the
  surrounding crate style (already explicit for `group` and `action`).
- Rename the best-effort cleanup tracing target from
  "omnigraph::init" to "omnigraph::init::cleanup" so operators can
  filter init-failure cleanup events separately from init's other
  log lines.

No behavior change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: drop actor_id from PolicyRequest; pass actor as separate arg

The MR-731 "server-authoritative actor identity" invariant was enforced
by an in-function chokepoint (`request.actor_id = actor.actor_id...`
overwrite inside `authorize_request`). That worked but relied on every
caller passing in a `PolicyRequest` and trusting the overwrite — a
comment-enforced invariant.

Move the invariant into the type system:

* `PolicyRequest` no longer carries `actor_id`. The struct now models
  what a caller wants to do, not who they are.
* `PolicyEngine::authorize(actor_id: &str, request: &PolicyRequest)`
  and `validate_request(actor_id, request)` take identity as a
  separate argument. The same shape `PolicyChecker::check` already had
  for the engine layer.
* `authorize_request` in the HTTP layer extracts `actor_id` from the
  bearer-resolved `ResolvedActor` and passes it positionally — no
  overwrite step that could be skipped.
* CLI `omnigraph policy explain` updated (the only other consumer
  that built a `PolicyRequest`).

Public API break for the `omnigraph-policy` crate. Worth it: handlers
can no longer accidentally populate `actor_id` from a request body
field, and external consumers are forced by the compiler to source
actor identity from a trusted path.

The MR-731 chokepoint test
`actor_id_resolves_from_bearer_token_ignoring_client_supplied_headers`
still passes — the bearer-resolved actor is what reaches the engine.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: consolidate AppState single-mode constructors; delete with_policy_engine

The prior `with_policy_engine` constructor reused the engine `Arc`
from the existing handle (`engine: Arc::clone(&existing.engine)`)
without re-applying `Omnigraph::with_policy`. Combined with
`new_with_workload`, the documented composition pattern was
`AppState::new_with_workload(...).with_policy_engine(p)` — which
produced an `AppState` whose HTTP layer enforced Cedar but whose
underlying engine had no `PolicyChecker` installed. Any caller
reaching the engine via `state.registry().list()[i].engine` could
bypass policy entirely. The doc comment named this gap; the type
system didn't.

Make composition impossible to get wrong:

* Add `AppState::new_single(uri, db, tokens, Option<PolicyEngine>,
  WorkloadController)` — canonical single-mode constructor that
  takes every option together and routes through `build_single_mode`
  (which applies `db.with_policy(checker)` to the engine itself).
* `new`, `new_with_bearer_token`, `new_with_bearer_tokens`,
  `new_with_bearer_tokens_and_policy`, `new_with_workload` all become
  thin wrappers around `new_single`.
* Delete `with_policy_engine`. There is no post-construction policy
  install path any more; the single linear construction forces
  HTTP-layer and engine-layer policy to install together or not at all.

Regression test `engine_layer_policy_fires_via_direct_arc_omnigraph_from_new_single`
constructs an `AppState::new_single` with a deny-all policy, pulls
the `Arc<Omnigraph>` from the registry handle (the same path an
embedded SDK consumer would take), and asserts a direct `mutate_as`
call returns `OmniError::Policy`. Pre-fix this test would have
succeeded the mutation.

Test caller in `ingest_per_actor_admission_cap_returns_429`
migrates from `.with_policy_engine(...)` to `new_single(...,
Some(policy_engine), workload)`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: derive any_per_graph_policy on RegistrySnapshot; simplify dup check

`AppState::requires_bearer_auth` walked the entire registry per
request (cloning Arcs into a `Vec`, then `.iter().any(|h| h.policy
.is_some())`) to decide whether the auth middleware should challenge.
The walk is unnecessary — the answer only changes when the registry
mutates, which is exactly the moment a new snapshot is constructed.

Move the flag onto the snapshot itself:

* `RegistrySnapshot { graphs, any_per_graph_policy: bool }`.
* `RegistrySnapshot::new(graphs)` is the only construction path —
  it derives the flag from `graphs.values().any(|h| h.policy
  .is_some())` so the cached value can't drift from the source data.
* `Default` delegates to `new(HashMap::new())`.
* `GraphRegistry::from_handles` and `insert` build snapshots via
  `RegistrySnapshot::new(...)`.
* `GraphRegistry::snapshot_ref()` exposes the current snapshot
  through an `arc_swap::Guard`; callers that need cached derived
  state go through this accessor (callers that only want `graphs`
  still use `list` / `get`).

`requires_bearer_auth` becomes one `ArcSwap::load` + bool read.

Also (drive-by, same file, same hunk): replace the dead
`if let Some(other) = seen_uris.get(...)` + `let _ = other;` pattern
in `from_handles` with a plain `seen_uris.contains_key(...)`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: fail-fast multi-graph startup with try_collect

The `open_multi_graph_state` doc comment claims "Fail-fast — the
first open error aborts startup; other in-flight opens are dropped"
but the code did

    .buffer_unordered(4)
    .collect::<Vec<_>>()
    .await
    .into_iter()
    .collect::<Result<Vec<_>>>()?;

which drains every future in the stream before propagating the first
`Err`. With N S3-backed graphs and graph #2 failing fast, the caller
still waits for #1, #3, #4, … to either succeed or fail before
seeing the error.

Replace the four-line dance with `futures::TryStreamExt::try_collect`,
which short-circuits on the first `Err` and drops the rest. The
doc comment now matches behavior.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: drop unused State extractor from 7 read-only handlers

After the routing-middleware refactor moved the engine into the per-graph
`GraphHandle` (extracted via `Extension<Arc<GraphHandle>>`), seven
read-only handlers — `server_snapshot`, `server_read`, `server_export`,
`server_schema_get`, `server_branch_list`, `server_commit_list`,
`server_commit_show` — kept an unused `State(_state): State<AppState>`
extractor. Drop it. Each request avoids one `FromRequestParts` clone
of `AppState`'s Arcs.

Handlers that actually use state (workload admission for write paths,
`server_policy` for management endpoints) keep theirs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: emit info! for graph routing decision

`tracing::Span::current().record("graph_id", ...)` in the routing
middleware silently no-ops here: no upstream `#[tracing::instrument]`
on the handlers declares a `graph_id` field, and `TraceLayer::new_for_http`
doesn't either. The recorded value never lands anywhere visible.

Replace with an explicit `info!(graph_id = %handle.key.graph_id,
"graph routed")` event so operators can grep logs and correlate
requests with the active graph. In single mode the value is the
sentinel `"default"`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: align GET /graphs 405 body code with HTTP status

The single-mode `GET /graphs` handler returned an `ApiError` built
via struct literal with `status: METHOD_NOT_ALLOWED, code: BadRequest`.
The body code disagreed with the HTTP status — clients deserializing
on `code` saw `bad_request`, clients deserializing on `status` saw
405. Same bug class as the earlier 503+Conflict mismatch on the
removed YAML drift path.

Close the class for this one remaining instance:

* Add `ErrorCode::MethodNotAllowed` to the API enum.
* Add `ApiError::method_not_allowed(msg)` — pairs the 405 status
  with the matching code.
* Replace the struct literal in `server_graphs_list` with the
  constructor.
* Regenerate `openapi.json` (adds `method_not_allowed` to the
  ErrorCode schema enum).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: drop unused axum::handler::Handler import

The import landed in earlier work but no current call site uses it.
Emitted an `unused_imports` warning on every server build.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: drop unused fs2 workspace dependency

`fs2 = "0.4"` lingered in [workspace.dependencies] after the
POST /graphs flock-on-rename design was pulled. `cargo tree -i fs2`
reports no consumers in the workspace and the dep is not in
Cargo.lock. Removing the declaration closes the "phantom dep" class.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: AGENTS.md Cedar row no longer hardcodes action count

The "8 actions" claim drifted as soon as MR-668 added `graph_list`.
Bumping the count would just push the drift one PR forward; the
correct-by-design fix is to defer to the canonical list in
docs/user/policy.md and stop maintaining a duplicate count.

Closes the "doc hardcodes a count that drifts from the enum" class.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: cfg(test)-gate GraphRegistry::insert and its mutex

`insert` and the `mutate: Mutex<()>` that serializes it had no
runtime consumer in v0.7.0 — the only insertion path at startup
is `from_handles`, and runtime add/remove is deferred until a
managed cluster catalog ships. Leaving both `pub` and live made
them a "looks like API, isn't" footgun: a future change could
build on `insert` without re-establishing the concurrency contract
with an actual consumer in scope.

Gate both together (`#[cfg(test)]` on the method, the field, and
the `tokio::sync::Mutex` import) so the race-pinning tests still
compile but production cannot reach them. When a real consumer
ships, ungate both — they're a unit. Closes the "public API with
no runtime consumer drifts toward incorrect" class.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: drop vestigial PolicyEngine surface

* `validate_request` had zero callsites — pure surface for nothing.
* `deny`'s `_actor_id` and `_request` parameters were both unused
  (the underscore prefix gave it away); the message is built by the
  caller before `deny` ever sees the request. Trim both.

Closes the "public API that the type system can't justify" class
for the policy engine. No behavior change; every existing test
stays green because the deletions never had a runtime effect.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: regression test for init re-init footgun (red)

A second `Omnigraph::init` against an existing graph URI today
destroys the existing graph's schema artifacts. `init_storage_phase`
overwrites `_schema.pg` before any preflight, and on the inner
`GraphCoordinator::init` failure that follows,
`best_effort_cleanup_init_artifacts` deletes all three schema files.
The existing Lance datasets and `__manifest/` survive but the
schema metadata is gone — unrecoverable without operator surgery.

This test exercises that path and currently fails with
"_schema.pg must not be deleted by a failed re-init", confirming
the destructive cleanup branch fires. The fix in the next commit
makes the test pass by preflighting with `storage.exists()` and
returning a typed error before any write touches disk.

Per AGENTS.md rule 12, the test commit lands just before the fix
commit so the red → green pair is visible in `git log` and a
reviewer can check out this commit alone to reproduce.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: close init re-init footgun via InitOptions preflight (green)

`Omnigraph::init` is "create a new graph"; existing graphs need
an explicit overwrite. Today's behavior — silently overwrite
schema files, then on inner failure delete them via best-effort
cleanup — is destructive against an existing graph regardless of
which branch fires.

Correct-by-design fix:

* New `InitOptions { force: bool }` struct (default `force: false`).
* New `Omnigraph::init_with_options(uri, schema, options)`. The
  old `Omnigraph::init(uri, schema)` is a thin shortcut that
  passes `InitOptions::default()`.
* `init_with_storage` runs a `storage.exists()` preflight on the
  three schema URIs BEFORE any parse, write, or coordinator call.
  Any hit → typed `OmniError::AlreadyInitialized { uri }`. The
  destructive code paths (the `write_text` overwrite and the
  best-effort cleanup) are now unreachable in strict mode against
  an existing graph.
* `force: true` skips the preflight; existing operators who
  actually mean to overwrite opt in explicitly.
* CLI: `omnigraph init --force` maps to `InitOptions { force: true }`.
* HTTP: `OmniError::AlreadyInitialized` maps to 409 via
  `ApiError::from_omni`. Not currently HTTP-reachable (POST /graphs
  was pulled), but the wiring lands here so a future runtime
  create endpoint has one canonical translation.

Closes the "init is destructive against existing state" class.
The regression test added in the previous commit
(`init_on_existing_graph_uri_does_not_destroy_existing_schema`)
turns green: the original schema files now survive a second
init attempt byte-for-byte, and the call errors cleanly with
`AlreadyInitialized`. The four existing
`init_failpoint_after_*_cleans_up_*` tests stay green — strict
mode's preflight passes on a fresh tempdir, and cleanup still
runs as before when a failpoint fires mid-write.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: split PolicyEngine::load into kind-typed loaders

Pre-fix, every caller of `PolicyEngine::load(path, graph_id)`
passed *some* `graph_id` argument — even when the policy was
server-scoped and Cedar's resolution would never touch a Graph
entity. The server-level loader at lib.rs passed the meaningless
sentinel `"server"`. A graph policy file containing a `graph_list`
rule compiled fine; a server policy file containing a `read` rule
compiled fine. Both silently no-op'd at request time because the
engine kind and the rule's resource kind disagreed.

Correct-by-design fix: replace `load` with two kind-typed loaders.

* `PolicyEngine::load_graph(path, graph_id)` — for per-graph
  policy files. Rejects any rule whose action `resource_kind()`
  is `Server`.
* `PolicyEngine::load_server(path)` — for server-level policy
  files. Takes no `graph_id`: server-scoped actions resolve against
  the singleton `Omnigraph::Server::"root"` entity, never a Graph.
  Rejects any rule whose action `resource_kind()` is `Graph`.

The old `load` is hard-deleted in the same commit because every
in-tree consumer migrates here (no semver promise on the workspace
crate, no external pinners). New `PolicyEngineKind` enum types
the loader's intent; `validate_kind_alignment` is the load-time
check that closes the "wrong action, wrong file, silent no-op"
class — operators get a load-time error instead of confused-and-
silent behavior at request time.

Callsites migrated:
* server lib.rs:374 (single-mode per-graph)   → load_graph
* server lib.rs:1065 (multi-mode server)      → load_server
* server lib.rs:1103 (multi-mode per-graph)   → load_graph
* CLI main.rs:732 (resolve_policy_engine)     → load_graph
* tests/server.rs ×5 (4 graph, 1 server)      → load_graph/load_server
* policy_engine_chassis.rs                    → load_graph

Four new in-source tests pin the contract: both rejection paths
and both positive paths.

Closes the "operator puts an action in the wrong file and the
rule silently never matches" class.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: introduce GraphRouting, retire single_mode_handle

Pre-fix, `AppState` always carried `Arc<GraphRegistry>` even when
serving one graph. Single mode populated the registry with one
handle keyed by the `SINGLE_GRAPH_KEY_ID = "default"` sentinel;
`single_mode_handle` walked the registry, asserted `len == 1`,
and returned the single element with a 500-class "programmer
error" branch on mismatch. Three smells in a row — magic key,
walk-and-assert, programmer-error guard — all because the
single-mode runtime was forced through a multi-mode abstraction.

Correct-by-design fix: type the routing.

* New `pub enum GraphRouting { Single { handle }, Multi { registry,
  config_path } }` on `AppState`. The `Single` arm carries the handle
  directly — no registry, no key, no walk.
* `resolve_graph_handle` middleware matches on `routing`. Single mode
  returns the handle in O(1); multi mode does the same path-extract +
  registry lookup as before. The 500-class programmer-error branch
  is gone — the type system now makes the violated invariant
  ("single mode has exactly one handle") unrepresentable.
* `requires_bearer_auth` reads `handle.policy.is_some()` directly
  in the Single arm; Multi arm still uses the cached
  `any_per_graph_policy` flag.

`ServerMode` and the legacy `registry` field on `AppState` are still
populated for now — C-3 removes both once every reader is migrated.
The `SINGLE_GRAPH_KEY_ID` sentinel and `ServerMode` will also go
away in C-3.

Closes the "single mode forced through a multi-mode abstraction"
class. All 76 server integration tests stay green: handlers still
extract `Extension<Arc<GraphHandle>>` from the request, so the
middleware's internal change is invisible to them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: remove ServerMode, registry field, and the SINGLE_GRAPH sentinel

C-1/C-2 introduced `GraphRouting` and pointed the middleware at it.
This commit removes the legacy shape that's now dead:

* `ServerMode` enum — deleted. Single mode's `uri` lives on
  `handle.uri`; multi mode's `config_path` lives on the
  `GraphRouting::Multi` arm.
* `AppState.mode: ServerMode` field — deleted.
* `AppState.registry: Arc<GraphRegistry>` field — deleted. Multi
  mode's registry is on `GraphRouting::Multi { registry, .. }`;
  single mode has no registry at all.
* `AppState::mode()`, `AppState::uri()`, `AppState::registry()`
  accessors — deleted. New `AppState::routing() -> &GraphRouting`
  is the single public entry point.
* `SINGLE_GRAPH_KEY_ID` constant — deleted. `GraphHandle.key` is
  still required by the struct, but in single mode the key is now
  only a tracing label (`"default"`, inlined with a comment naming
  its sole remaining purpose). Single-mode flat routes never carry
  a `{graph_id}` parameter, so the key is never compared against
  user input, and there is no registry where it could be a map
  key. C-1/C-2 already removed the registry walk that the sentinel
  was named for.

Callers migrated:
* `build_app` (lib.rs:944) — matches on `state.routing()` instead
  of `state.mode()`.
* `server_graphs_list` (lib.rs:1162) — destructures the Multi arm
  to get the registry; Single arm short-circuits to 405.
* `server_openapi` (lib.rs:1217) — matches the Multi arm for the
  cluster-prefix rewrite.
* `tests/server.rs:3735` — the B2 footgun regression test now
  matches on `state.routing()` to extract the single-mode handle
  (the test's earlier `state.registry().list().next()` shape was
  the closest pre-fix analog to "embedded consumer reaches the
  engine"; the new shape is more direct).

Closes the entire "single mode forced through a multi-mode
abstraction" class. After this commit:
* No magic sentinel as a routing key.
* No `single_mode_handle` walk-and-assert helper.
* No 500-class "programmer error" branch in the middleware.
* No two-field discriminant on `AppState` where one would do.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: regression test for nested-route path extraction (red)

`server_branch_delete` and `server_commit_show` use bare
`Path<String>` extractors. In single-mode flat routes
(`/branches/{branch}`, `/commits/{commit_id}`) this works — one
capture, one value. In multi-graph cluster routes
(`/graphs/{graph_id}/branches/{branch}`,
`/graphs/{graph_id}/commits/{commit_id}`) axum 0.8 propagates the
outer `{graph_id}` capture into the inner handler, so the
extractor sees two captures and 500s with
"Wrong number of path arguments. Expected 1 but got 2."

`cluster_routes_dispatch_per_graph_handle` only exercises
`/snapshot` (no Path extractor), so the regression slipped through.
This test closes that gap structurally: every cluster route with
an inner path param gets exercised here.

Currently fails with the exact symptom above. Fix in the next
commit makes it pass.

Per AGENTS.md rule 12, the red test commit lands just before the
fix so the pair is visible in `git log` and a reviewer can check
out this commit alone to reproduce.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: named-field path-param structs for nested cluster routes (green)

`Path<String>` deserializes one path-param value positionally.
Single-mode flat routes (`/branches/{branch}`,
`/commits/{commit_id}`) have one capture; multi-mode nested routes
(`/graphs/{graph_id}/branches/{branch}`,
`/graphs/{graph_id}/commits/{commit_id}`) have two — axum 0.8
propagates the outer capture into nested handlers. Same handler,
two different shapes; the multi-mode shape 500s with
"Wrong number of path arguments. Expected 1 but got 2."

Symptomatic fix: change to `Path<(String, String)>` and ignore the
first element. Breaks again the moment we add another nest layer
(e.g. tenant in Cloud mode).

Correct-by-design fix: named-field structs deserialized by name
from axum's path-param map. Each handler picks only the fields it
needs. Stable across single / multi / future-cloud nest depths
because deserialization is by field name, not position.

* New `BranchPath { branch: String }` (file-local to lib.rs)
* New `CommitPath { commit_id: String }`
* `server_branch_delete` extractor → `Path<BranchPath>`
* `server_commit_show` extractor → `Path<CommitPath>`

Closes the "handler path-extractor type is positional and breaks
when route nesting changes" class. Red test from the previous
commit turns green. All 77 server tests pass (single-mode branch
delete + commit show, plus new multi-mode coverage).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: centralize policy-requires-tokens check in the runtime classifier

Single-mode `open_with_bearer_tokens_and_policy` bailed at lib.rs:380
when policy was installed and no tokens. Multi-mode
`open_multi_graph_state` had no equivalent: the server started, every
request 401'd because no token could ever match, and the operator
spent time debugging a misconfiguration the single-mode path would
have caught at startup.

The doc/code contradiction made the gap easy to miss: the
`ServerRuntimeState::PolicyEnabled` docstring said tokens-or-not
was "unusual but valid — every request fails 401 without a bearer,
which is effectively 'locked'." The single-mode bail contradicted
that. In practice, silent-401-on-every-request is bug-shaped, not
feature-shaped (operators wanting deny-all should configure tokens
plus a deny-all Cedar rule to get meaningful 403s with
policy-decision logging).

Symptomatic fix: add a copy of the bail to multi-mode. Two copies
that can drift again the next time a startup path is added.

Correct-by-design fix: hoist the check into
`classify_server_runtime_state` so both modes get the same
enforcement from one source of truth. The classifier becomes the
single source of truth for "should we start?" and adding a startup
invariant there is now the natural extension point for any future
mode.

Classifier matrix is now complete:

| has_tokens | has_policy | allow_unauthenticated | Result |
|---|---|---|---|
| F | F | F | bail (existing) |
| F | F | T | Open (existing) |
| T | F | * | DefaultDeny (existing) |
| F | T | * | bail (NEW — closes the gap) |
| T | T | * | PolicyEnabled (existing) |

Changes:

* `classify_server_runtime_state` (lib.rs:870-890) gains the
  `(false, true, _) => bail!(…)` arm with a clear message naming
  the failure mode and the two valid resolutions.
* `open_with_bearer_tokens_and_policy` (lib.rs:369+) drops its
  redundant local bail — the classifier rejected the invalid case
  before construction was reached.
* `ServerRuntimeState::PolicyEnabled` docstring is rewritten:
  drops the "(unusual but valid)" carve-out and states plainly
  that PolicyEnabled requires tokens. Names the explicit
  alternative (tokens + deny-all Cedar rule) for operators who
  want the all-requests-denied behavior.
* `classify_policy_enabled_always_wins` test is renamed to
  `classify_policy_enabled_requires_tokens` and the now-invalid
  `(false, true, _)` assertion is removed (covered by the new
  rejection test).
* New `classify_policy_without_tokens_is_rejected` test covers the
  new arm.
* New `serve_refuses_to_start_with_policy_but_no_tokens_multi_mode`
  integration test pins the multi-mode propagation path —
  symmetric with the existing single-mode
  `serve_refuses_to_start_in_state_1_without_unauthenticated`.

Closes the "single mode and multi mode startup branches can drift
on safety invariants" class.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: close coverage gaps surfaced by the test-coverage audit

The bot-review pass and the subsequent coverage audit surfaced two
material gaps in PR #119's test surface — both easy to close, both
worth closing before merge.

* **Gap 1 — cluster-route sweep.** The Bug-1 path-extractor
  regression slipped through because
  `cluster_routes_dispatch_per_graph_handle` only exercised
  `/snapshot`. The other six protected cluster routes (`/read`,
  `/change`, `/export`, `/schema`, `/schema/apply`, `/ingest`,
  `/branches/merge`) were implicitly trusted to work without any
  multi-mode integration test.

  Add `all_protected_cluster_routes_resolve_to_their_handler`
  (`tests/server.rs`) that hits each protected cluster route with
  a minimal request and asserts the response is consistent with
  the handler being reached — no 404 (router didn't match), no 500
  with "Wrong number of path arguments" (Bug-1 class), no 500 with
  "missing extension" (routing middleware didn't inject the handle).
  Status code is a negative assertion because each handler's
  happy-path inputs differ; what matters is "the request reached
  the handler," not "the handler returned 200" — that's already
  pinned by the single-mode tests.

* **Gap 2 — `--force` happy path.** The strict re-init regression
  test (`init_on_existing_graph_uri_does_not_destroy_existing_schema`)
  pins the error path; nothing pinned the `force: true` escape
  hatch actually doing what its docstring claims.

  Add `init_with_force_recovers_from_orphan_schema_files`
  (`tests/lifecycle.rs`). Writes a bare `_schema.pg` to simulate
  orphan files from a failed prior init, confirms strict mode
  bails as expected, then confirms `init_with_options(force: true)`
  succeeds and produces a functional graph.

  Note: the test follows the documented semantics — force skips
  the preflight only, it does NOT purge existing Lance state. An
  earlier draft of the test (against full overwrite of an existing
  populated graph) failed because `GraphCoordinator::init` errored
  on the existing `__manifest`, which is exactly the limitation
  the `InitOptions::force` docstring already calls out. Recursive
  purge needs `StorageAdapter::delete_prefix` (tracked separately).

Coverage is now fully aligned with the PR's claims.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: regression test for GraphList open-mode bypass (red)

Cursor bot's review at commit 4120448 surfaced that
`server_graphs_list` returns 200 in Open mode (`--unauthenticated`,
no tokens, no policy), exposing the full graph registry — graph
IDs and URIs that may contain S3 bucket paths or internal
hostnames — to any unauthenticated caller.

Root cause: `authorize_request`'s no-policy fallback only denies
when `actor.is_some()`. In Open mode `actor: None`, so the
denial branch never fires and the call returns `Ok(())`. The
docstring on `server_graphs_list` claims the endpoint is
"Cedar-gated" and that we "don't leak the registry until the
operator explicitly authorizes it" — but Open mode has no Cedar
at all, so the docstring intent and the code disagree.

This commit renames the existing
`get_graphs_lists_registered_graphs_in_multi_mode` test to
`get_graphs_denied_in_open_mode_without_server_policy` and flips
the assertion from 200 → 403. Today this fails (server returns
200) — exactly the symptom the bot named. The fix in the next
commit tightens the no-policy fallback to deny server-scoped
actions unconditionally, regardless of mode.

Per AGENTS.md rule 12, the red test commit lands just before
the fix so the red → green pair is visible in `git log` and a
reviewer can check out this commit alone to reproduce.

Sort-order coverage that previously lived in the renamed test
moves to `get_graphs_with_server_policy_authorizes_per_cedar`
in the next commit, where the admin-200 response is operator-
authorized and a non-empty body is asserted.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: server-scoped actions always require explicit policy (green)

`server_graphs_list` returned 200 in Open mode (`--unauthenticated`,
no tokens, no policy) because `authorize_request`'s no-policy
fallback only denied when `actor.is_some()` AND action != Read.
In Open mode `actor: None`, so the denial branch never fired and
the call returned `Ok(())` — leaking the registry (graph IDs +
URIs that may contain S3 bucket paths or internal hostnames) to
any unauthenticated caller. The docstring on `server_graphs_list`
claimed it was "Cedar-gated" and that the server should "not leak
the registry until the operator explicitly authorizes it" —
docstring intent and code disagreed.

Symptomatic fix: special-case GraphList. Breaks the moment
another server-scoped action (`graph_create`, `graph_delete`) is
added.

Correct-by-design fix: tie authorization to the action's
`resource_kind()`. Server-scoped actions
(`PolicyResourceKind::Server`) always require explicit policy
authorization — there is no runtime state where they're served
by default. Per-graph actions keep the existing default-deny
logic (DefaultDeny denies non-Read for authenticated actors;
Open mode allows everything per the operator's `--unauthenticated`
opt-in for graph DATA, but not for server topology).

The fix uses the existing `PolicyResourceKind` enum that #119
already added — no new abstraction. Future server-scoped actions
(runtime `graph_create`/`graph_delete` when the cluster catalog
ships) automatically pick up the same enforcement without any
per-action handler change.

Changes:

* `crates/omnigraph-server/src/lib.rs:51` — re-export
  `PolicyResourceKind` (the kind discriminator was already public
  on the omnigraph-policy crate; needed in scope here).
* `crates/omnigraph-server/src/lib.rs:1457` — `authorize_request`'s
  no-policy fallback gains a server-scoped-action check that fires
  before the actor-based default-deny logic. Error message names
  the failure mode and points at `server.policy.file`.
* `crates/omnigraph-server/tests/server.rs:5037` —
  `get_graphs_with_server_policy_authorizes_per_cedar` extended
  to register two graphs in non-alphabetical order and assert
  the admin-200 response is sorted alphabetically. Restores the
  sort-order coverage that lived in
  `get_graphs_lists_registered_graphs_in_multi_mode` before the
  red commit renamed it to assert denial.

Also bundles a small adjacent cleanup that the bot-review flagged:

* `crates/omnigraph-server/src/graph_id.rs:124` — drop the
  unreachable `"openapi.json"` entry from `is_reserved`. The
  regex `^[a-zA-Z0-9-]{1,64}$` rejects every dot-containing name
  before `is_reserved` can run, so dotted entries in this list
  were dead code that misled readers into thinking the list
  needed to cover them. Comment now names the structural
  exclusion. The `rejects_reserved_route_names` test loses its
  `openapi.json` row (covered by `rejects_dots` via the regex).

Closes the "server-scoped management actions silently leak in
Open mode" class. Red test from the previous commit
(`get_graphs_denied_in_open_mode_without_server_policy`) turns
green; all 78 server integration tests + 76 lib tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: fold multi-graph work into v0.6.0 (no separate v0.7.0 release)

The branch had bumped workspace versions to 0.7.0 and added a
dedicated `docs/releases/v0.7.0.md` for the multi-graph work.
Per scope decision: ship the graph-rename and the multi-graph
mode in one v0.6.0 release.

Changes:

* Workspace versions bumped 0.7.0 → 0.6.0 in every crate manifest
  (`omnigraph`, `omnigraph-compiler`, `omnigraph-policy`,
  `omnigraph-server`, `omnigraph-cli`) and their internal
  `path = ..., version = "..."` dependency constraints.
* `docs/releases/v0.7.0.md` content merged into
  `docs/releases/v0.6.0.md`, retargeted to a single coherent
  v0.6.0 release note covering both the graph terminology rename
  and the multi-graph server mode. The original v0.7.0.md is
  deleted.
* All `v0.7.0` / `0.7.0` doc and comment references throughout
  `crates/`, `docs/`, `AGENTS.md`, and `openapi.json` retargeted
  to `v0.6.0` / `0.6.0`. `Cargo.lock` regenerated to match.
* OpenAPI spec regenerated via `OMNIGRAPH_UPDATE_OPENAPI=1
  cargo test -p omnigraph-server --test openapi
  openapi_spec_is_up_to_date` — `"version": "0.6.0"` now.

Verification:

* `cargo build --workspace` — clean (6 pre-existing engine
  warnings only).
* `cargo test --workspace --locked` — zero failures across all
  39 test result groups.
* `bash scripts/check-agents-md.sh` — passes (34 links / 33 docs).
* `grep -rn "0\.7\.0\|v0\.7\.0" --include='*.rs' --include='*.md'
  --include='*.json' --include='*.toml' .` returns no workspace
  hits. The three remaining `0.7.0` strings in `Cargo.lock`
  belong to unrelated 3rd-party crates (`pem-rfc7468`, `radium`,
  `rand_xoshiro`).

The git tag and crates.io publish happen later — this commit
just consolidates the surface so the eventual release is one
coherent v0.6.0 covering all the work since v0.5.0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* mr-668: sanitize internal refs from v0.6.0 release notes

cubic-dev-ai P2 comments flagged that the release notes carried
internal Linear ticket and RFC references (MR-668, MR-731,
MR-723, RFC 0003, RFC 0004). Per AGENTS.md maintenance rule 5,
"Release docs are public project history. Describe capabilities,
behavior changes, breaking changes, upgrade notes, and user
impact; do not reference private ticket systems, internal
codenames, or planning shorthand that an outside contributor
cannot inspect." The bot's comments are correct against our own
published contract — they were a docs-quality regression
introduced when I drafted these notes.

Replaced each internal reference with the public-facing concept
it stood for. The substantive content (capabilities, behavior,
guarantees) was already present alongside the refs; sanitization
just trimmed the bracketed ticket labels:

* Line 6: dropped `(MR-668)` from the multi-graph mode summary —
  the descriptive name was already self-sufficient.
* Line 24: `MR-731 spoof defense` → `the bearer-derived-actor-
  identity guarantee`; `Forward-compat for Cloud mode (RFC 0003)
  and OAuth provider (RFC 0004)` → "forward-compat seams for
  future multi-tenant and OAuth deployments; they're inert in
  this release" — describes what the operator sees instead of
  pointing at planning docs.
* Line 26: `MR-731's server-authoritative-actor invariant` →
  "the server-authoritative-actor invariant: actor identity is
  always sourced from the bearer-token match resolved at the
  auth boundary" — the public-facing statement of the guarantee.
* Line 36: `(MR-723 default-deny otherwise rejects …)` →
  "without a server policy the default-deny posture rejects …"
  — same content, no ticket label.
* Line 121: `MR-731 spoof regression test` → "The bearer-auth-
  derived-actor-identity regression test (client-supplied
  identity headers are ignored; the server-resolved actor is the
  only identity Cedar sees)" — describes what the test guards
  instead of naming the originating ticket.

Verified: `grep -E 'MR-\d+|RFC[ -]?\d+' docs/releases/v0.6.0.md`
returns no matches; the rest of `docs/releases/` is also clean.
`scripts/check-agents-md.sh` passes.

Note: cubic-dev-ai also flagged `crates/omnigraph-cli/src/main.rs:276`
("doc comment incorrectly references v0.6.0 for a command that
only exists in v0.7.0"). That comment is based on a stale model
of the release surface — after folding v0.7.0 into v0.6.0 in
the previous commit, the multi-graph CLI surface IS in v0.6.0
and the comment is correct as written. No change needed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix: close validated init and multi-graph gaps

* chore: address review cleanup comments

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-28 16:19:31 +02:00
Ragnor Comerford
cc2412dc65
Rename repo terminology to graph (#118)
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2026-05-24 16:46:00 +01:00
Andrew Altshuler
bb1fe57640
release: v0.5.0 (#115)
* gitignore: exclude docs/internal/ from publication

Mirrors the existing "Local-only working files (not for the public
repo)" pattern. Working notes filed under docs/internal/ stay on the
contributor's machine instead of cluttering the published doc tree
or tripping the AGENTS.md / docs-index cross-link check
(scripts/check-agents-md.sh enumerates every docs/*.md and requires
each one to be linked from an audience index — internal notes don't
have an audience index by definition).

Incidental to the v0.5.0 release; lands separately from the version
bump commits.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* ci: skip docs/internal/ in agents-md cross-link check

Matches the .gitignore exclusion. Mirrors the existing 'docs/releases/'
exclusion pattern: notes under docs/internal/ aren't part of the
published doc tree and don't need to be linked from an audience index.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* release: v0.5.0 — Lance 6 substrate, Cedar policy engine, schema-lint v1

Bumps the workspace from 0.4.2 to 0.5.0. Release notes at
docs/releases/v0.5.0.md.

Three user-visible pillars motivate the minor bump:
  1. Lance 6.0.1 substrate (DataFusion 52→53, Arrow 57→58)
  2. Engine-wide Cedar policy enforcement on every _as writer; server
     defaults to deny-all; signed-token-claim-only actor identity
  3. Schema-lint v1 chassis: OG-XXX-NNN codes, soft drops, and
     `--allow-data-loss` (Hard mode) for destructive migrations

Plus structured DataFusion Expr filter pushdown (unblocks
CompOp::Contains via array_has), HTTP allow_data_loss parity, inline
.gq sources on CLI/HTTP, optional CORS layer, and bug fixes
(merge-insert dup-rowid, branch-merge coordinator restore on error,
blob columns in branch merge).

Sites bumped:
  - 5 crate [package].version lines (omnigraph, omnigraph-cli,
    omnigraph-compiler, omnigraph-policy, omnigraph-server)
  - 10 internal path-dep `version = "..."` constraints across the
    four manifests that depend on sister crates (engine, server, cli,
    plus engine's dev-dep on the compiler)
  - Cargo.lock (regenerated via cargo update --workspace)
  - AGENTS.md "Version surveyed:"
  - openapi.json `info.version` (regenerated via
    OMNIGRAPH_UPDATE_OPENAPI=1 cargo test -p omnigraph-server --test
    openapi)

Verification:
  - cargo test --workspace --locked: 907/907 green
  - cargo test -p omnigraph-engine --test failpoints --features
    failpoints: 19/19 green
  - cargo test -p omnigraph-engine --test lance_surface_guards: 3/3
  - scripts/check-agents-md.sh: clean

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-23 13:59:42 +01:00
Andrew Altshuler
cb80fa40f1
exec/query: structured Expr pushdown via Scanner::filter_expr (unblocks CompOp::Contains) (#113)
* exec/query: pushdown IR filters via DataFusion Expr (Scanner::filter_expr)

Switches `execute_node_scan` from string-flattened Lance SQL pushdown
(`build_lance_filter` + `scanner.filter(&str)`) to structured DataFusion
Expr pushdown (`build_lance_filter_expr` + `scanner.filter_expr(Expr)`).

## What this enables

1. **`CompOp::Contains` now pushes down.** `ir_filter_to_sql` returned
   `None` for list-contains (the comment said *"Can't pushdown list
   contains"*) because string SQL can't easily express it. With Expr,
   it lowers to DataFusion's `array_has(col, value)` builtin via the
   `nested_expressions` feature, and pushes down to Lance's scan layer
   the same way Eq/Lt/etc. do. Pinned by the new regression test
   `end_to_end::ir_filter_with_list_contains_pushes_down`.

2. **DataFusion 53's optimizer rules now reach our predicates.** Once
   the Expr lands at the Lance scanner, DF's planner runs:
   - `IN`-list vectorized eq kernel (DF #20528)
   - `PhysicalExprSimplifier` (DF #20111)
   - CASE WHEN x THEN y ELSE NULL shortcut (DF #20097)
   - Push limit into hash join (DF #20228)
   None of these were applicable before because the string SQL path
   short-circuited the optimizer.

## Scope

This is one of three string-flattened pushdown sites; the other two
(`hydrate_nodes`/Expand pushdown at query.rs:771-796 and the mutation
delete path in `exec/mutation.rs::predicate_to_sql`) stay on the SQL
string path for now:

- The Expand pushdown still serializes through `hydrate_nodes`'s
  `extra_filter_sql: Option<&str>` parameter. Migrating it changes the
  `TableStorage` trait surface (`scan_stream(filter: Option<&str>)` →
  `Option<Expr>`) and the cascading call sites — out of scope for this
  MR.
- The mutation delete predicate still goes through `Dataset::delete(&str)`
  in Lance 6.0.1. MR-A (delete two-phase via Lance #6658, gated on the
  Lance v7 bump per issue #112) will migrate that path to
  `DeleteBuilder::execute_uncommitted` taking an Expr.

The existing `ir_filter_to_sql` / `ir_expr_to_sql` / `literal_to_sql`
helpers stay in place to serve the remaining string-SQL consumers
(mutation predicates). They get retired when the other call sites
migrate.

## Cargo

Enables the `nested_expressions` feature on the `datafusion` workspace
dep. Lance already pulls in `datafusion-functions-nested` transitively
(it's listed in their feature set), so this just exposes the
`datafusion::functions_nested::expr_fn::array_has` re-export. No
transitive dep change (Cargo.lock unchanged).

## Tests

- New: `ir_filter_with_list_contains_pushes_down` — pins the case that
  was previously impossible (`ir_filter_to_sql` returning `None`).
- 906/906 workspace tests still pass.
- 417/417 engine integration tests pass (was 416 + the new one).
- 19/19 failpoints (recovery canary).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* ci: pin rustfs/rustfs to 1.0.0-beta.3 (last known-good before creds-policy break)

The RustFS S3 Integration job started failing 2026-05-23 with all 3
tests panicking on the first PUT:

  HTTP error: error sending request

The "Dump RustFS logs on failure" step revealed the container was
dying at startup:

  [FATAL] Server encountered an error and is shutting down:
  Default root credentials are not allowed on non-loopback listeners;
  set RUSTFS_ACCESS_KEY and RUSTFS_SECRET_KEY to non-default values,
  bind to loopback, or set RUSTFS_ALLOW_INSECURE_DEFAULT_CREDENTIALS=true
  for local development only

`rustfs/rustfs:latest` was updated 2026-05-21 (1.0.0-beta.4) with a
credentials-policy check that rejects `rustfsadmin`/`rustfsadmin` as
"default" values. PR #111 passed yesterday because it ran against
beta.3; today's runs against beta.4 fail at container startup.

This is unrelated to PR #113's Expr-pushdown refactor — the bump
just happened to hit the same week.

Pin to 1.0.0-beta.3 (2026-05-14, last tag before the change). The
right long-term fix is one of:
  - Rotate the CI creds to less-default values (less coupling to
    RustFS's "default" set definition)
  - Set `RUSTFS_ALLOW_INSECURE_DEFAULT_CREDENTIALS=true` per the
    error message
  - Use a workflow service container with controlled lifecycle

Deferred — pinning is the minimal restore. Also incidentally
documents *which* version we tested against, which `:latest` never
did.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-23 12:47:33 +01:00
Andrew Altshuler
3551e0d40e
chore(lance): bump 4.0.0 → 6.0.1 (DataFusion 52→53, Arrow 57→58) (#111)
* tests: add lance_surface_guards pre-flight pins for the v6 bump

Land 8 named guards in a new test file that pin Lance API surfaces
OmniGraph relies on. Each guard turns a silent-break risk (variant
rename, struct restructure, async-flip) into a red CI bar instead of
runtime drift.

Guards (mapped to the silent-break inventory from the v6 migration plan):

  Runtime (#[tokio::test]):
  1. lance_error_too_much_write_contention_variant_exists — pins the
     variant referenced by db/manifest/publisher.rs::map_lance_publish_error.
  2. manifest_location_field_shape — pins .path/.size/.e_tag/.naming_scheme
     types and ManifestLocation accessor returning &Self (the access
     pattern at db/manifest/metadata.rs:84-88).
  6. write_params_default_does_not_set_storage_version — confirms our
     explicit V2_2 pin remains load-bearing (blob v2 requirement).

  Compile-only async fns (#[allow(...)] + unimplemented!() placeholders;
  never run, but cargo build --tests enforces the API shape):
  3. checkout_version + restore chain — pins the recovery rollback hammer
     at db/manifest/recovery.rs:505-522.
  4. DatasetBuilder::from_namespace().with_branch().with_version().load()
     — pins the namespace builder chain at db/manifest/namespace.rs:162-174.
  5. MergeInsertBuilder fluent chain — pins the manifest CAS at
     db/manifest/publisher.rs:370-391, including the return shape
     (Arc<Dataset>, MergeStats).
  7. compact_files(&mut ds, CompactionOptions, None) — pins
     db/omnigraph/optimize.rs:107.
  8. DeleteResult { new_dataset, num_deleted_rows } — pins the inline
     delete result shape (MR-A will repurpose this guard to the staged
     two-phase variant once Lance #6658 migration lands).

This is commit 1 of the chore/lance-6.0.1 migration. Cargo bump
follows in commit 2 (will trigger the guards under v6 if any surface
drifted).

Per the migration plan at ~/.claude/plans/shimmering-percolating-duckling.md
(written this session). Two guards from the plan deferred to follow-up:
  - manifest_cas_returns_row_level_contention_variant (full publisher
    race integration test — needs harness scaffolding)
  - table_version_metadata_byte_compatible_with_v4 (TableVersionMetadata
    is pub(crate); requires test reach extension).

Verified on v4: cargo test -p omnigraph-engine --test lance_surface_guards
passes 3/3 runtime tests; cargo build -p omnigraph-engine --tests
compiles all 5 compile-only guards clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore(deps): bump Lance 4.0.0 → 6.0.1, DataFusion 52 → 53, Arrow 57 → 58

The Cargo bump itself. Source is intentionally untouched — this commit
will not compile. The compile errors are the work-list for subsequent
commits on this branch.

Lance updates: lance + 7 sub-crates 4.0.0 → 6.0.1. Transitive churn:
  + lance-tokenizer v6.0.1 (vendored tokenizer per Lance PR #6512)
  + object_store 0.13.x (Lance 6 brings it transitively; our explicit
    pin stays at 0.12.5 for now — revisit in stages if diamond bites)
  - tantivy* crates (replaced by lance-tokenizer)

Compile error landscape on this commit (11 errors):
  • 1× E0432: `lance_index::DatasetIndexExt` import (Lance PR #6280
    moved it to lance::index). Sites: table_store.rs:20,
    db/manifest.rs:37 (the second site was missed by the pre-flight
    inventory).
  • 8× E0599: `create_index_builder` / `load_indices` missing on
    `lance::Dataset` — all downstream of the DatasetIndexExt move.
    Once the import is corrected on table_store.rs and db/manifest.rs,
    these resolve automatically.
  • 2× E0063: missing field `is_only_declared` in `DescribeTableResponse`
    initializer at db/manifest/namespace.rs:221, 364. New Lance
    namespace field per the v5 namespace restructure (PR #6186).

Surface guards (lance_surface_guards.rs, commit d571fa8) all still
compile + the 3 runtime ones pass on v6 — none of the silent-break
surfaces drifted. That's the load-bearing observation: the publisher
CAS chain, ManifestLocation field shape, checkout_version/restore,
DatasetBuilder fluent chain, MergeInsertBuilder return shape,
WriteParams::default, compact_files signature, and DeleteResult
fields are all v6-stable.

Next commits address the 11 errors per the migration plan stages
3-8.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* imports: move DatasetIndexExt to lance::index (Lance PR #6280)

Lance 5.0 (PR #6280) moved `DatasetIndexExt` out of `lance-index` into
`lance::index`. `is_system_index` and `IndexType` stayed in `lance-index`.

Mechanical update of 6 import sites:
  crates/omnigraph/src/table_store.rs:20 — split into two `use` lines
  crates/omnigraph-server/tests/server.rs:10 — was traits::DatasetIndexExt
  crates/omnigraph/tests/search.rs:6
  crates/omnigraph/tests/branching.rs:7
  crates/omnigraph/tests/failpoints.rs:467
  crates/omnigraph-cli/tests/cli.rs:3 — was traits::DatasetIndexExt

All 9 E0599 cascading errors on .create_index_builder / .load_indices
resolve once the trait is back in scope.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* namespace: add is_only_declared field to DescribeTableResponse

Lance namespace 6.0.0 added `is_only_declared: Option<bool>` to
`DescribeTableResponse` (lance-namespace-reqwest-client 0.7+ via the
v5.0 namespace API restructure, Lance PR #6186). Set to `Some(false)`
because every table BranchManifestNamespace returns from describe_table
is materialized — the manifest snapshot only includes entries for
tables we've already opened via Dataset::open.

Two sites in db/manifest/namespace.rs (BranchManifestNamespace +
StagedTableNamespace impls of LanceNamespace::describe_table).

Closes the last two compile errors from the v6 bump in the engine lib.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* cargo: add lance to omnigraph-cli + omnigraph-server dev-deps

Stage 3 moved DatasetIndexExt imports from `lance-index` to `lance::index`
in the cli and server test crates. Both crates only had `lance-index`
in their dev-dependencies; add `lance` alongside so the new path
resolves.

This is the last compile-error fix from the v6 bump — `cargo build
--workspace --tests` is now green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: refresh Lance alignment audit for v6.0.1; bump surveyed version

Per CLAUDE.md maintenance rule 2 (same-PR docs):

- docs/dev/lance.md: replace the v4.0.1 alignment audit stanza with
  the v6.0.1 audit. Captures every v5/v6 finding from this PR (the
  DatasetIndexExt move, DescribeTableResponse.is_only_declared,
  MergeInsertBuilder return shape, ManifestLocation field shape,
  LanceFileVersion::default flip, file-reader async, tokenizer
  vendor, Lance #6658/#6666/#6877 status). Cross-references each
  guard in tests/lance_surface_guards.rs.

- AGENTS.md: bump "Storage substrate: Lance 4.x" → "Lance 6.x".
  Note: surveyed crate version stays at 0.4.2 — substrate version
  bumps are independent of OmniGraph's release version.

- crates/omnigraph/src/storage_layer.rs: update the trait module-level
  doc-comment to reflect that Lance #6658 closed 2026-05-14 and
  delete_where two-phase migration is MR-A (the next follow-up).
  #6666 stays open; create_vector_index inline residual stays.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* tests: silence clippy::diverging_sub_expression on compile-only guards

The five `_compile_*` async fns in lance_surface_guards.rs use
`let ds: Dataset = unimplemented!()` as a placeholder so type inference
can chase the method chain we want to pin, without ever running the
function. Clippy's `diverging_sub_expression` lint flags this pattern
because the RHS diverges; that's the entire point. Added to the
per-fn `#[allow(...)]` list, alongside dead_code / unreachable_code /
unused_variables / unused_mut already there.

No behavior change. cargo test -p omnigraph-engine --test
lance_surface_guards still 3/3 green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs: correct #6658 status — closed but API ships in Lance v7.x, not v6.0.1

The audit stanza in docs/dev/lance.md and the storage_layer.rs trait
doc-comment both implied the public DeleteBuilder::execute_uncommitted
API shipped with Lance 6.0.1. It did not. Issue #6658 closed
2026-05-14, but binary search across the release stream confirms:

  v6.0.1             no pub async fn execute_uncommitted on DeleteBuilder
  v6.1.0-rc.1       
  v7.0.0-beta.5     
  v7.0.0-beta.10     first appearance
  v7.0.0-rc.1       

So MR-A (delete two-phase migration) is gated on the Lance v7.x bump,
not on this PR. v7.0.0-rc.1 dropped 2026-05-21; GA likely within a
week.

No behavior change. Doc-only correction.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* ci(lib): bump recursion_limit to 256 — Lance 6 trait depth on Linux

Lance 6's heavier trait surface around futures/streams in storage_layer.rs's
staged-write API pushes the rustc trait-resolution recursion limit past
the default 128 on Linux builds. CI on PR #111 surfaced this in both
`Test Workspace` and `Test omnigraph-server --features aws`:

  error: queries overflow the depth limit!
    = help: consider increasing the recursion limit by adding a
      `#![recursion_limit = "256"]` attribute to your crate (`omnigraph`)
    = note: query depth increased by 130 when computing layout of
      `{async block@crates/omnigraph/src/storage_layer.rs:697:5: 697:10}`

(The async block is `stage_create_btree_index`'s body — its return type
is several layers of `impl Future<Output=Result<StagedHandle>>` deep on
top of Lance's own builder return types.)

Local macOS builds happened to short-circuit before tripping the limit,
which is why this didn't surface during the v6 bump sequence. The fix
rustc itself suggests is one line at the crate root.

No behavior change. Revisit if a future Lance bump stops needing it.

Verified: `cargo build --locked -p omnigraph-server --features aws`
compiles clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-23 00:42:29 +01:00
Ragnor Comerford
e1b40aee0b
engine: opt MergeInsertBuilder into FirstSeen for Lance dup-rowid bug (MR-957) (#109)
* engine: opt MergeInsertBuilder into FirstSeen for Lance dup-rowid bug (MR-957)

Lance 4.0.x's MergeInsertBuilder rejects sequential merge_insert /
update against rows previously rewritten by merge_insert with a
spurious "Ambiguous merge inserts: multiple source rows match the
same target row on (id = ...)" error. The engine passes exactly 1
source row; Lance's `processed_row_ids: Mutex<HashSet<u64>>`
(lance-4.0.0 src/dataset/write/merge_insert.rs:2099) double-processes
the same source/target match against datasets previously rewritten
by merge_insert and errors under the default
SourceDedupeBehavior::Fail.

Two surfaces hit it:
- Load: `omnigraph load --mode merge` twice against the same @key set.
- Mutate: sequential `update T set {f:v} where x=y` on the same row.

Fix: opt both MergeInsertBuilder call sites (merge_insert_batch,
stage_merge_insert) into SourceDedupeBehavior::FirstSeen. Lance
silently skips a duplicate match instead of erroring.

Correctness-preserving for OmniGraph because source-side duplicates
are already rejected upstream of these call sites:
- Loader: enforce_unique_constraints_intra_batch (loader/mod.rs:1453)
  rejects intra-batch dup @key values across all three LoadModes,
  pinned by the new loader_rejects_intra_batch_duplicate_keys test.
- Mutate: MutationStaging::finalize pre-dedupes by id.

So FirstSeen only suppresses the spurious Lance behavior, never user
data.

Regression coverage:
- consistency::load_merge_repeated_against_overlapping_keys_succeeds
  — load surface (was the basis of the original PR #98 report).
- runs::second_sequential_update_on_same_row_succeeds — update
  surface (MR-920).
- consistency::loader_rejects_intra_batch_duplicate_keys — pins
  FirstSeen's safety argument.
- consistency::load_merge_window_2_documents_upstream_lance_gap —
  canary for the residual upstream Lance gap (after MR-848 removes
  the eager BTREE-on-id, re-establishing the index via
  ensure_indices re-triggers the bug class). Drop the FirstSeen
  setter only when this canary stays green without it.

Cross-validation on the prior PR #98 branch: both use_index(false)
(PR #98's hypothesis) and FirstSeen (MR-920's hypothesis) cover both
surfaces individually. FirstSeen chosen because it has no perf cost
(use_index(false) would force full-table scans on every merge_insert).

Supersedes PR #98 and andrew/merge-insert-firstseen.

Tracked at MR-957; upstream: lance-format/lance#6877.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* engine: add dedup-by-keys precondition on merge_insert primitives

Addresses Codex P1 on PR #109: `SourceDedupeBehavior::FirstSeen`
silently collapses duplicate source rows, and the branch-merge rewrite
path (`exec/merge.rs::publish_rewritten_merge_table`) feeds a
concatenated batch directly into `stage_merge_insert` without going
through `MutationStaging::finalize`'s pre-dedupe. By construction the
merge algorithm (`compute_source_delta` / `compute_three_way_delta`
walk via `OrderedTableCursor` and push each id at most once) produces
1-row-per-id, but the invariant was implicit — a future refactor
could violate it and FirstSeen would mask the bug as silent data
loss.

Add `check_batch_unique_by_keys` as a release-mode precondition at the
top of `merge_insert_batch` and `stage_merge_insert`. Errors with an
explicit "duplicate source row" message before the builder runs, so
real source dups continue to fail-fast regardless of caller.

Cost: one extra O(N) pass over the key column on every merge_insert.
String HashSet over typical batch sizes is microseconds — negligible
next to the merge_insert itself.

The inline comment in `table_store.rs` now enumerates all three
pre-dedup paths (load / mutate / branch-merge) and names the
precondition as the structural pin instead of relying on
by-construction invariants from three separate callers.

Three new unit tests in `table_store::tests` pin the helper itself;
the existing `loader_rejects_intra_batch_duplicate_keys` integration
test continues to pin the loader's intake-time check as the first
defense layer.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-22 18:19:54 +01:00
Andrew Altshuler
aadfa11ecb
schema: HTTP allow_data_loss exposure + e2e drop coverage (MR-694 follow-up) (#107)
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The schema-lint chassis v1.2 (PR #100) shipped `--allow-data-loss` on
the CLI, but `SchemaApplyRequest` had no equivalent field — Hard-mode
drops were CLI-only. This commit closes that feature gap and adds e2e
test coverage for drop modes across HTTP + CLI, plus data preservation
on additive apply, plus a CLI↔SDK plan-parity assertion.

Feature gap closed:

- `crates/omnigraph-server/src/api.rs` — added `allow_data_loss: bool`
  (default false via `#[serde(default)]`) to `SchemaApplyRequest`.
  Added `Default` derive so test usages can use `..Default::default()`.
- `crates/omnigraph-server/src/lib.rs` — `server_schema_apply` now
  constructs `SchemaApplyOptions { allow_data_loss: request.allow_data_loss }`
  and threads through to `apply_schema_as`.
- `crates/omnigraph-cli/src/main.rs` — remote-URI schema-apply path
  used to bail with "--allow-data-loss not yet supported on remote";
  now forwards the flag into the JSON payload so the CLI behaves
  identically against local and remote URIs.
- `openapi.json` — regenerated; only diff is the new field on
  `SchemaApplyRequest`.

Tests added (8 new):

* `crates/omnigraph-server/tests/server.rs` (+5):
  - `schema_apply_route_soft_drops_property_via_http` — POST schema
    removing nullable property, verify catalog reflects the drop AND
    `snapshot_at_version(pre)` still has `age` in the field list
    (time-travel reachability is the Soft contract).
  - `schema_apply_route_soft_drops_node_type_via_http` — POST schema
    removing `Company` node + cascading `WorksAt` edge.
  - `schema_apply_route_hard_drops_property_with_allow_data_loss` —
    POST with `allow_data_loss: true`, verify plan step reports
    `mode: hard`.
  - `schema_apply_route_keeps_drops_soft_without_flag` — same schema
    without flag, verify `mode: soft`. Pins default semantics against
    accidental Hard promotion.
  - `schema_apply_route_additive_property_preserves_existing_rows` —
    load fixture, POST adding nullable property, verify row count
    preserved (SDK suite covers data preservation on drops + renames;
    additive AddProperty wasn't pinned).
  Plus helpers `schema_without_age` and `schema_without_company`.

* `crates/omnigraph-cli/tests/cli.rs` (+3):
  - `schema_apply_allow_data_loss_flag_promotes_drops_to_hard` — CLI
    `omnigraph schema apply --allow-data-loss --schema X.pg --json`,
    verify plan step has `mode: hard`.
  - `schema_apply_without_allow_data_loss_keeps_soft_drops` — without
    flag, verify Soft.
  - `schema_plan_parity_cli_and_sdk` — same `.pg` source through
    `Omnigraph::plan_schema` (SDK) and `omnigraph schema plan --json`
    (CLI), assert the steps array is byte-identical post-JSON. HTTP
    has no `/schema/plan` endpoint; apply-side parity is implicitly
    covered by the HTTP drop tests + CLI drop tests using identical
    fixtures.

Docs:

- `docs/user/schema-language.md` — new "Destructive drops" section
  documenting Soft vs Hard semantics and that `allow_data_loss` is
  now honored uniformly across CLI / HTTP / SDK.

Verification: every new test passes; full `cargo test --workspace --locked`
green; `scripts/check-agents-md.sh` passes.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-19 01:56:46 +03:00
Andrew Altshuler
e8fec2fa0f
tests: policy chassis e2e gap-fills (MR-722 follow-up) (#106)
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* tests: policy chassis e2e gap-fills (MR-722 follow-up)

Audit after PRs #101-105 surfaced real e2e gaps in the policy chassis
that could let regressions ride through silently. Coverage was strong
at the SDK level (18 chassis tests) and reasonable at HTTP (12+ policy
tests), but the CLI×writer matrix was asymmetric (only `change` tested
end-to-end), the `cli.actor` config-only precedence path was untested,
the `OMNIGRAPH_UNAUTHENTICATED` env-var read path was unexercised,
`serve()`'s startup-refusal propagation was structural-review only,
and engine↔HTTP decision parity was a structural property without a
test pinning it. This commit closes those gaps.

Added (15 new tests, all test-only):

* `policy_engine_chassis.rs` (+2): `load_file_as` allow + deny pair —
  PR #104 added the actor-aware mirror of `load_file` but it was only
  exercised via CLI integration; this is direct-SDK coverage.

* `omnigraph-server/src/lib.rs` mod tests (+2):
  - `unauthenticated_env_var_classification` — consolidated single
    test (process-global env var; running parallel would race) that
    pins truthy values, falsy values, unset, and CLI-flag-overrides-
    env behavior of the `OMNIGRAPH_UNAUTHENTICATED` read path inside
    `load_server_settings`.
  - `serve_refuses_to_start_in_state_1_without_unauthenticated` —
    `#[serial]` integration test. Clears all bearer-token env vars,
    builds a `ServerConfig` with no policy file and no flag, calls
    `serve(config).await`, asserts Err before any side-effecting
    work (Lance dataset open, TcpListener::bind). Guards the
    classifier→serve propagation path so a future refactor that
    drops the call turns red.

* `omnigraph-server/tests/server.rs` (+4): `policy_decision_parity_*`
  — four cases (Change×allowed+denied, BranchMerge×allowed+denied).
  Each case runs the same Cedar decision via both SDK
  (`Omnigraph::with_policy().mutate_as` / `branch_merge_as`) and HTTP
  (`POST /change` / `POST /branches/merge`) and asserts both either
  Allow or Deny. The structural property (both paths call
  `PolicyChecker::check`) is now test-asserted.

* `omnigraph-cli/tests/system_local.rs` (+8): the CLI×writer matrix
  fan-out:
  - `local_cli_load_enforces_engine_layer_policy`
  - `local_cli_ingest_enforces_engine_layer_policy`
  - `local_cli_schema_apply_enforces_engine_layer_policy`
  - `local_cli_branch_create_enforces_engine_layer_policy`
  - `local_cli_branch_delete_enforces_engine_layer_policy`
  - `local_cli_branch_merge_enforces_engine_layer_policy`
  Each: one denied case (`--as act-bruno` against protected main) +
  one allowed case (`--as act-ragnor` via existing/extended admins-*
  rules).
  Plus:
  - `local_cli_actor_from_config_used_when_no_flag` — proves the
    config-only precedence path works.
  - `local_cli_actor_flag_overrides_config_actor` — proves the
    `--as` flag wins over `cli.actor` in the config.
  Adds `local_policy_config_with_actor` helper. Extends
  `POLICY_E2E_YAML` with `admins-branch-ops` (BranchCreate +
  BranchDelete) and `admins-schema-apply` rules so the CLI×writer
  matrix has positive-case rule coverage.

Verification: all new tests pass; full `cargo test --workspace
--locked` is green; `scripts/check-agents-md.sh` passes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* tests: serialize env-touching server lib tests to fix CI flake

CI flake on PR #106's Test Workspace job: two of the new tests
(`serve_refuses_to_start_in_state_1_without_unauthenticated` and
`unauthenticated_env_var_classification`) raced against
`server_bearer_tokens_from_env_reads_legacy_token_and_token_file`,
which sets `OMNIGRAPH_SERVER_BEARER_TOKEN` via `EnvGuard`.

While `serve_refuses` was mid-execution with its EnvGuard cleared,
the bearer-token test's EnvGuard had `OMNIGRAPH_SERVER_BEARER_TOKEN`
set; `resolve_token_source()` saw it and classified the runtime
state as `DefaultDeny` rather than refusing — so the test panicked
with "Dataset at path X not found" instead of the expected refusal
message. The unauthenticated test had the symmetric failure: its
`OMNIGRAPH_UNAUTHENTICATED="anything"` got overwritten by a peer
`EnvGuard` drop.

Fix: mark every test that uses `EnvGuard` with `#[serial]` so they
serialize against each other (default key). Already on
`serve_refuses_to_start_in_state_1_without_unauthenticated`; added
to `unauthenticated_env_var_classification` and
`server_bearer_tokens_from_env_reads_legacy_token_and_token_file`.
The `parse_bearer_tokens_json_*` tests don't touch env vars and
stay parallel.

Locally green (36 tests pass on my workstation); the parallelism
issue is CI-runner-specific (more aggressive thread interleaving)
but the fix is universal.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-18 22:25:04 +03:00
Andrew Altshuler
f3f2a051ba
policy: server 3-state default-deny matrix (MR-723) (#105)
Closes the "tokens but no policy" trap. Pre-MR-723, an operator who
configured bearer tokens and forgot to set policy.file got a server
that required auth and then permitted every action — the illusion of
protection. After MR-723, that configuration is default-deny: only
`read` actions succeed; every other action returns HTTP 403.

Three startup states, classified deterministically:

- **Open** — no tokens, no policy. Requires explicit
  `--unauthenticated` flag or `OMNIGRAPH_UNAUTHENTICATED=1`; otherwise
  `serve()` refuses to start. Forces the operator to opt in to
  "fully open dev mode" so it can't happen accidentally.
- **DefaultDeny** — tokens configured, no policy. `authorize_request`
  rejects every action except `Read` with 403. The warn-log on
  startup names the misconfiguration explicitly.
- **PolicyEnabled** — policy file configured. Cedar evaluates every
  request, unchanged from pre-MR-723.

What landed:

- `ServerConfig.allow_unauthenticated: bool` + `--unauthenticated` flag
  on the `omnigraph-server` bin + `OMNIGRAPH_UNAUTHENTICATED` env var
  (`load_server_settings` honors both).
- New `classify_server_runtime_state(has_tokens, has_policy,
  allow_unauthenticated) -> Result<ServerRuntimeState>` pure function.
  `serve()` calls it before opening the engine and bails with a clear
  error when the operator hits the no-tokens-no-policy-no-flag cell.
- `authorize_request` state-2 branch: when `policy_engine()` is None
  but the bearer-auth middleware delivered an authenticated actor, any
  action other than `Read` returns 403 with a message that names the
  misconfiguration.
- `AppState::with_policy_engine(self, engine)` builder method so
  integration tests that need a custom workload (`new_with_workload`)
  can still install a permit-all policy without a new constructor.
- `app_for_loaded_repo_with_auth(token)` and
  `app_for_loaded_repo_with_auth_tokens(tokens)` test helpers now
  install a permit-all policy alongside tokens — they previously
  represented the "tokens but no policy" state that MR-723 makes
  default-deny, and tests that don't care about policy were
  inadvertently coupled to the loophole.

Tests:

- `classify_*` unit tests (3) — every cell of the matrix.
- `default_deny_mode_allows_read_for_authenticated_actor` — GET
  /snapshot succeeds with bearer token + no policy.
- `default_deny_mode_rejects_change_with_forbidden` — POST /change
  rejected with 403 + "default-deny" message.
- `default_deny_mode_rejects_schema_apply_with_forbidden` — POST
  /schema/apply rejected with 403 + "default-deny" message.
- New `app_for_repo_with_auth_tokens_only(schema, tokens)` helper
  builds the State-2 fixture without policy. The pre-MR-723 helpers
  `app_for_loaded_repo_with_auth*` shift semantics to "tokens +
  permit-all" so existing tests retain their original intent.

docs/user/policy.md: new "Server runtime states (MR-723)" section
documents the matrix and the explicit `--unauthenticated` opt-in.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-18 17:02:26 +03:00
Andrew Altshuler
a275306a15
policy: CLI policy injection — local writes go through engine enforce (MR-722) (#104)
Closes the CLI side of the policy chassis fan-out. Before this commit,
CLI direct-engine writes bypassed Cedar entirely because the CLI never
called `Omnigraph::with_policy(...)` for non-`policy validate|test|explain`
subcommands. After this commit, every CLI direct-engine writer
(change, load, ingest, branch create/delete/merge, schema apply) opens
the engine via a new `open_local_db_with_policy(uri, &config)` helper
that installs the configured `PolicyEngine` when `policy.file` is set,
and threads the resolved actor through to the `_as` writer methods.

Actor identity resolution:

- New top-level `--as <ACTOR>` global flag on the CLI overrides config.
- New `cli.actor` field in `omnigraph.yaml` provides a default actor.
- Precedence: `--as` > `cli.actor` > None.
- When policy is configured and neither is set, the engine-layer
  footgun guard fires and the write is denied — silent bypass via
  "I forgot the actor" is exactly what the guard prevents.
- Remote HTTP writes ignore both — bearer-token-resolved server-side.

Helpers added in main.rs:

- `open_local_db_with_policy(uri, &config) -> Result<Omnigraph>` —
  opens the DB and installs the PolicyEngine when configured. Without
  policy this is identical to a bare `Omnigraph::open`.
- `resolve_cli_actor(cli_as, &config) -> Option<&str>` — implements
  the flag > config > None precedence.

Engine: added `load_file_as` to the loader as the actor-aware mirror of
`load_file`, so CLI file-path loads flow through the same enforce gate
as in-memory `load_as` calls.

Test rewrite: `local_cli_policy_tooling_is_end_to_end_while_local_writes_stay_unenforced`
was the explicit assertion of the pre-chassis hole. Renamed and split:

- `local_cli_policy_tooling_is_end_to_end` — sanity for the read-only
  policy CLI surfaces (validate/test/explain), unchanged behavior.
- `local_cli_change_enforces_engine_layer_policy` — the new assertion:
  policy installed + no actor → footgun-guard denial; `--as act-bruno`
  on protected main → Cedar denial; `--as act-ragnor` (admins-write
  rule) on main → permit, write committed.

POLICY_E2E_YAML gains an `admins-write` rule so the permit case has
a non-trivial actor to exercise.

docs/user/policy.md updated with `cli.actor` + `--as <ACTOR>` usage.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-18 04:06:21 +03:00
Andrew Altshuler
da42beec41
policy: chassis fan-out — _as variants on the remaining 6 writers (MR-722) (#103)
PR #102 wired apply_schema_as. This PR completes the chassis-side
coverage so every public mutating engine entry point hits the same
Omnigraph::enforce(action, scope, actor) gate regardless of transport:

- mutate_as → enforce(Change, Branch(branch), actor)
- load_as → enforce(Change, Branch(branch), actor)
- ingest_as → enforce(Change, Branch(branch), actor); also threads
  actor through the implicit branch_create_from_as so fresh-branch
  ingest correctly hits BranchCreate too
- branch_create_as → enforce(BranchCreate, TargetBranch(name), actor)
- branch_create_from_as → enforce(BranchCreate,
  BranchTransition { source, target }, actor)
- branch_delete_as → enforce(BranchDelete, TargetBranch(name), actor)
- branch_merge_as → enforce(BranchMerge,
  BranchTransition { source, target }, actor)

Three new _as variants for branch ops (create, create_from, delete)
that had no actor surface before; existing actor-less variants delegate
with actor=None so the no-policy path is a strict no-op.

HTTP handlers updated to thread the resolved actor into the new _as
variants for branch_create and branch_delete (was previously dropped).

14 new SDK chassis tests (one allow + one deny pair per wired writer);
the existing 4 apply_schema_as tests stay. All 18 pass.

docs/user/policy.md updated to describe engine-wide enforcement and the
coarse-vs-fine layer split (engine = action gate, query layer per-row =
MR-725 future). AGENTS.md capability matrix updated to match.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-18 03:38:18 +03:00
Andrew Altshuler
9973683261
policy: chassis core — omnigraph-policy crate + Omnigraph::enforce() (MR-722) (#102)
PR #2 of the policy chassis series (PR #1 = MR-731, merged in #101).
The structural fix that moves Cedar enforcement from HTTP-only to
engine-wide. apply_schema is the proof-of-concept writer; PR #3 fans
the enforce() call out to the remaining six (mutate_as, load,
ingest_as, branch_create_from, branch_delete, branch_merge).

## What lands

### New crate: omnigraph-policy

The 844-line policy.rs moves from `omnigraph-server` into a new
`omnigraph-policy` workspace crate so both engine and server can
depend on it. Cedar dependency moves with it. The server's policy.rs
becomes a re-export shim (`pub use omnigraph_policy::*`) so existing
`omnigraph_server::PolicyAction` etc. paths keep working — CLI and
test consumers don't have to migrate in one go.

### New trait: PolicyChecker

```rust
pub trait PolicyChecker: Send + Sync {
    fn check(&self, action: PolicyAction, scope: &ResourceScope,
             actor: &str) -> Result<(), PolicyError>;
}
```

`PolicyEngine` (Cedar-backed) implements it. `Omnigraph::with_policy()`
takes `Arc<dyn PolicyChecker>`. Engine tests mock the trait without
spinning up Cedar. MR-725 will extend the trait with `predicate_for()`
for query-layer pushdown — additive, no call-site changes.

### New enum: ResourceScope

Four variants — Graph, Branch, TargetBranch, BranchTransition —
mapping cleanly to today's `(branch, target_branch)` shape on
PolicyRequest via `to_branch_pair()`. Each engine writer picks the
variant that matches the existing HTTP-layer convention so engine
and HTTP evaluate the same Cedar decision.

**Invariant**: ResourceScope stays at branch granularity. Per-type
and per-row scope are MR-725's territory, not engine-layer's.
Adding Type/Row variants here creates two places per-type policy
can be evaluated, which can drift. See chassis design refinements
comment on MR-722 (2026-05-17).

### Omnigraph::with_policy() + enforce()

* New `policy: Option<Arc<dyn PolicyChecker>>` field on Omnigraph,
  None by default (preserves embedded/dev no-enforcement mode).
* `with_policy(self, checker)` setter — builder-style, consumes self.
* `enforce(action, scope, actor)` — the gate. When policy is None,
  no-op. When policy is Some AND actor is None, hard error — silent
  bypass via "I forgot the actor" is exactly the footgun this gate
  is here to prevent.

### apply_schema_as: first writer wired

* New public method `apply_schema_as(source, options, actor)` that
  calls `enforce(SchemaApply, TargetBranch("main"), actor)` before
  acquiring the schema-apply lock or doing any other work.
* Existing `apply_schema(source)` and `apply_schema_with_options(...)`
  delegate to it with actor=None (no-actor variants).
* HTTP handler `server_schema_apply` updated to call apply_schema_as
  with the resolved actor. AppState construction injects the
  PolicyEngine into Omnigraph via `with_policy`. HTTP-layer
  authorize_request still fires first; the engine gate is the
  redundant-but-correct backstop and the only path that protects SDK
  / embedded callers. PR #3 removes the HTTP redundancy.

### OmniError::Policy

New error variant for engine-layer policy denial / evaluation
failure. ApiError::from_omni maps it to 403.

### MR-724 Admin action — Option A reservation

PolicyAction::Admin kept in the enum with a load-bearing doc
comment naming its future consumers (hot reload, audit log query,
approvals list per MR-726 / MR-732 / MR-734). No enforce(Admin, ...)
call site exists yet — the variant is reserved so the action
vocabulary is complete from chassis day one. MR-724 closes when
the first consumer surface ships.

### New SDK-side integration test

`crates/omnigraph/tests/policy_engine_chassis.rs` — four tests
covering:
* Policy denies for unauthorized actor → OmniError::Policy
* Policy permits for authorized actor → apply succeeds
* Policy installed + no actor → hard error (forget-the-actor footgun)
* No policy → no-op (embedded/dev default still works)

These exercise the engine path directly — no HTTP layer involved.

## Test results

- cargo test --workspace --locked --no-fail-fast: 851 passed, 0 failed
  * 45 server tests (existing) pass
  * 14 schema_apply tests (existing) pass
  * 4 new chassis tests pass
  * 60 OpenAPI tests pass (no HTTP API surface changes)
  * No regressions across the workspace

## Architectural decisions baked in

Per MR-722 chassis design refinements comment (2026-05-17):

1. PolicyChecker is a trait, not just a concrete. Engine and server
   consume the trait. MR-725 adds predicate_for() additively.
2. ResourceScope stays at branch granularity. No Type/Row variants.
3. Coarse-vs-fine framing pinned: engine-layer is action gate;
   query-layer (MR-725) is predicate gate. Both backed by same Cedar
   engine; non-overlapping responsibilities.
4. Admin action reserved for policy-management surfaces (MR-724
   Option A).

## Pending follow-ups (PR #3+)

- Fan-out enforce() to mutate_as, load, ingest_as, branch_create_from,
  branch_delete, branch_merge (PR #3).
- Remove HTTP-layer authorize_request redundancy once engine gate
  covers all writers (PR #3).
- CLI policy injection into Omnigraph for non-`policy validate|test|explain`
  subcommands (PR #3 or follow-up).
- MR-723 default-deny 3-state matrix (PR #4).
- MR-736 severity warn/deny (PR #5).
- AGENTS.md scope-of-enforcement rewrite once chassis fully lands.
- Coarse-vs-fine framing in docs/user/policy.md.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-18 00:36:36 +03:00
Andrew Altshuler
7a86f654d4
policy: codify signed-token-claim-only actor identity (MR-731) (#101)
Warm-up commit for the policy chassis epic (MR-722). PR #1 of the
chassis series — same role as schema-lint v1's commit #1 baseline.
Zero behavioral change; establishes the regression test, the
load-bearing doc comment, and the user-doc paragraph for an
invariant already true in code.

Server auth already resolves `actor_id` from the matched bearer
token at `omnigraph-server/src/lib.rs:692-694`, overwriting whatever
the handler put in the PolicyRequest. The principle is named in
docs/dev/invariants.md Hard Invariant 11 ("clients cannot set actor
identity directly"). What was missing: a regression test, a
load-bearing doc comment at the resolution site, and a user-facing
documentation paragraph. This commit adds all three.

Why first. The actor-identity invariant is the foundation every
other policy decision stands on. If `actor_id` can be spoofed, every
chassis primitive (per-row scope, audit log, two-person rule)
becomes ungated. Pinning the invariant first means PR #2 (the
chassis core) doesn't have to re-prove this assertion.

Changes:

* crates/omnigraph-server/tests/server.rs — new regression test
  actor_id_resolves_from_bearer_token_ignoring_client_supplied_headers
  with three sub-assertions:
  - spoof-up: bearer for denied actor + X-Actor-Id naming allowed
    actor → 403 (header doesn't promote)
  - spoof-down: bearer for allowed actor + X-Actor-Id naming denied
    actor → 200 (header doesn't demote)
  - empty-string spoof: empty X-Actor-Id doesn't clear resolved actor
  Cross-link to MR-777 (auth boundary cases — actor-id collision +
  malformed bearer) noted in the test docstring.

* crates/omnigraph-server/src/lib.rs — expanded doc comment at
  the actor-resolution site explaining the SECURITY INVARIANT,
  citing Hard Invariant 11, the Supabase RLS history footgun, and
  the regression test that pins the contract. Reader thinking "I
  should let clients override actor_id for impersonation" hits
  this comment first.

* docs/user/policy.md — new "Actor identity (signed-claim-only)"
  section near the existing Server enforcement section. Closes the
  user-facing doc gap MR-731's "Done when" requires.

Architectural decisions for PR #2+ pinned this session (not
implemented here, recorded so future implementers don't re-litigate):
- PolicyEngine moves to new `omnigraph-policy` workspace crate so
  both engine and server can depend on it (Q2).
- `enforce(action, scope, actor)` will take a new `ResourceScope`
  enum, leaving room for MR-725's per-type and per-row variants (Q3).
- `PolicyAction::Admin` is kept and wired (Option A) — meta-action
  for policy-management surfaces (hot reload, audit log query,
  approvals list) as those consumer features land (Q4).

Test results:
- cargo test -p omnigraph-server --test server: 45 pass (44 existing
  + 1 new); no regressions
- scripts/check-agents-md.sh: passes (34 links / 33 docs OK)

Out of scope (PR #2+):
- Omnigraph::with_policy() + enforce() method
- omnigraph-policy crate creation
- ResourceScope enum
- CLI policy injection into Omnigraph
- HTTP-layer redundant-check removal
- MR-724 Admin action wiring (PR #2)
- MR-723 default-deny 3-state (PR #4)
- MR-736 severity warn/deny (PR #5)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-17 02:51:34 +03:00
Andrew Altshuler
a6e037547f
schema-lint chassis v1.2: --allow-data-loss flag + Hard mode (MR-694) — completes v1 (#100)
* schema-lint v1 commit 5: --allow-data-loss flag + Hard mode

Final v1 commit. Wires up the --allow-data-loss CLI flag and Hard
mode for both DropProperty and DropType. Per
docs/dev/schema-lint-v1-plan.md, commit #5 of the schema-lint
chassis v1 series (MR-694).

CLI (omnigraph-cli/src/main.rs):
- New --allow-data-loss flag on both `omnigraph schema plan` and
  `omnigraph schema apply` subcommands. Off by default (Soft).
- HTTP remote schema apply explicitly rejects the flag for now
  (CLI-only; HTTP parity is a separate small follow-up that adds
  the field to SchemaApplyRequest + the server handler).

Engine (omnigraph.rs + schema_apply.rs):
- New SchemaApplyOptions { allow_data_loss: bool } public struct
  (Default = all false), re-exported via omnigraph::db::SchemaApplyOptions.
- New public methods: plan_schema_with_options and
  apply_schema_with_options. Existing plan_schema/apply_schema are
  now thin wrappers that pass Default::default().
- promote_drops_to_hard: post-plan walk that promotes every
  DropMode::Soft step to DropMode::Hard when the flag is set.
  Keeps the compiler's plan_schema_migration signature unchanged
  (no breaking change for tests / callers).
- Apply path: both Drop arms accept Hard mode; behavior is
  identical to Soft inside the apply loop. The DIFFERENCE is the
  new hard_cleanup_targets: Vec<(String, String)> accumulator,
  populated for every Hard variant with (table_key, full_dataset_uri).
- Post-publish cleanup: a new loop after the manifest commit
  iterates hard_cleanup_targets and calls cleanup_old_versions
  (before_timestamp = now) on each dataset URI. Best-effort —
  the apply is already durable; cleanup failure is logged via
  tracing::warn rather than failing the apply.
- New cleanup_dataset_old_versions helper inlines the Lance
  cleanup_old_versions call against a dataset URI.

Behavioral details:
- DropProperty Hard: stage_overwrite produced a new dataset version
  without the column. cleanup_old_versions removes the prior version
  (and reclaims unique fragments). After Hard apply,
  snapshot_at_version(pre_drop).open(table_key) FAILS because the
  prior dataset version was reclaimed.
- DropType Hard: no per-table write happens (the change is the
  manifest tombstone). cleanup_old_versions on the orphan dataset
  is a no-op in the immediate term (no prior versions to clean
  since the dataset wasn't modified by this apply). The dataset
  directory persists. Full orphan-cleanup is a documented
  follow-up — the user-facing contract is "data is unreachable
  via omnigraph" (manifest entry tombstoned), which is satisfied.

Tests (tests/schema_apply.rs):
- apply_schema_with_allow_data_loss_promotes_drops_to_hard:
  default plan emits Soft; with options.allow_data_loss=true,
  plan emits Hard; apply succeeds.
- apply_schema_hard_drops_property_makes_prior_version_unreachable:
  Hard drop succeeds, current snapshot lacks the column, and
  snapshot_at_version(pre_drop).open("node:Person") FAILS (Lance
  prior version reclaimed by cleanup).
- apply_schema_hard_drops_node_and_edge_with_flag_succeeds: both
  Node and Edge DropType variants are promoted to Hard with the
  flag; apply succeeds; current manifest entries gone. (Orphan
  dataset directory cleanup deferred.)

Test results:
- cargo test -p omnigraph-compiler --lib: 239 passed
- cargo test -p omnigraph-engine --test schema_apply: 14 passed
  (3 new Hard tests + 11 existing soft/regression tests)
- cargo test -p omnigraph-server --test openapi: 60 passed (no
  HTTP API surface changes in this commit; OpenAPI parity follow-up
  noted)

v1 status: complete for CLI/embedded use. MR-694 chassis epic +
MR-700 DropType/DropProperty ticket can close after this lands.

Known follow-ups (separate small PRs):
- HTTP parity: extend SchemaApplyRequest with allow_data_loss field,
  thread through server handler, regenerate openapi.json.
- Orphan-dataset directory deletion for DropType Hard (currently
  the dataset directory persists; cleanup_old_versions doesn't
  remove it because the dataset wasn't modified).
- MR-948 substrate alignment: swap DropProperty Soft from
  stage_overwrite to Dataset::drop_columns (catalog_only vs
  full_rewrite cost class).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fixup: use bail! from color_eyre::eyre instead of anyhow

The remote-rejection branch in SchemaCommand::Apply used
anyhow::anyhow! which isn't in scope; the CLI's Result type is
color_eyre::eyre::Result and bail! is already imported.

Caught by CI Test Workspace job on PR #100.

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-16 22:12:46 +03:00
Andrew Altshuler
58cee158d8
schema-lint v1 commit 4: emit + apply DropType { Soft } (#99)
Wire the second half of the dormant Drop* family. Per
docs/dev/schema-lint-v1-plan.md, commit #4 of the schema-lint chassis
v1 series (MR-694). Builds on commit #3 (PR #90, DropProperty Soft).

Planner (schema_plan.rs):
- plan_nodes leftover loop: emit DropType { Node, name, Soft }
  instead of UnsupportedChange (OG-DS-102) for node-type removals.
- plan_edges leftover loop: emit DropType { Edge, name, Soft }
  instead of UnsupportedChange (OG-DS-103) for edge-type removals.

Apply (schema_apply.rs):
- New dropped_tables: BTreeSet<String> accumulator alongside
  added_tables / renamed_tables / rewritten_tables.
- DropType arm in the metadata loop populates dropped_tables for
  Soft mode. Hard mode errors (lands in commit #5 with
  --allow-data-loss).
- New tombstone-emission loop after the rename sidecar build:
  for each dropped table, push to sidecar_tombstones AND populate
  table_tombstones with table_version + 1. The existing manifest
  publish path converts table_tombstones into ManifestChange::Tombstone
  operations — no new manifest plumbing needed.
- Soft DropType has no Phase B per-table write; the tombstone is the
  entire change. Lance dataset files are retained — prior __manifest
  versions still reference them, so time travel + branch-from-snapshot
  can read the dropped table until cleanup_old_versions runs.
- Rides on SidecarKind::SchemaApply per MR-847 (already established
  by commit #3).

Tests:
- Planner unit test plan_emits_soft_drop_for_removed_node_and_edge_types
  asserts both Node and Edge DropType { Soft } emission for the
  Company + WorksAt combined drop, plus no UnsupportedChange.
- Integration test apply_schema_drops_node_and_referencing_edge_softly
  (replaces apply_schema_rejects_dropping_a_node_type): asserts
  plan emission, apply success, current manifest entries absent,
  pre-drop manifest entries present (time-travel reversibility),
  reopen consistency.
- Integration test apply_schema_drops_an_edge_type_softly (replaces
  apply_schema_rejects_dropping_an_edge_type): single edge drop,
  asserts other tables untouched, time-travel reversibility.

Test results:
- cargo test -p omnigraph-compiler --lib: 239 passed (1 new + 238)
- cargo test -p omnigraph-engine --test schema_apply: 11 passed
  (2 converted + 9 unchanged)

Pending for v1 completion:
- Commit #5: --allow-data-loss CLI flag + Hard mode promotion in
  planner + immediate compact_files + cleanup_old_versions for
  both DropProperty and DropType.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-16 20:25:42 +03:00
Andrew Altshuler
e98347eb7b
schema-lint chassis v1.0: DropProperty Soft + code-tagged diagnostics (MR-694) (#90)
* schema-lint chassis v1 (WIP): tier surfacing + plan doc

First commit of the chassis v1 branch. Lands a small, foundational
slice without behavior change, plus a planning doc that lays out the
remaining 7 commits in sequence so the PR can be reviewed
incrementally.

This commit:

- Adds SchemaMigrationStep::diagnostic() returning the full
  &'static DiagnosticCode (family + tier + severity) for
  UnsupportedChange steps with codes. Renderers can now reach the
  tier without re-implementing the code → tier lookup.

- CLI `omnigraph schema plan` output now displays tier alongside
  code:

    unsupported change on node:Person.age [OG-DS-104, destructive]:
        removing property 'Person.age' is not supported in schema
        migration v1

  Operators see at-a-glance the kind of risk each rejection
  represents — not just the rule identifier.

- No behavior change. All 11 existing schema_apply tests still pass.

Planning doc at docs/schema-lint-v1-plan.md tracks the 7 remaining
commits to bring v1 to feature-complete:

  1. (this commit) Tier surfacing in plan output.
  2. Soft / Hard mode enum on drop steps.
  3. Tombstone fields on catalog IR.
  4. Planner emits DropProperty { Soft } by default.
  5. Apply path implements Soft mode.
  6. Convert PR #62 destructive-rejection tests.
  7. --allow-data-loss flag + Hard mode.
  8. (optional) Tombstone unhide / restore command.

Delete the planning doc when v1 lands. Intentionally checked in to
the WIP branch so the scope is reviewable; not intended as a
permanent doc.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* schema-lint v1 commit 2: DropMode + dormant Drop* variants

Second commit of the chassis v1 branch. Lands the type-level shape
of soft/hard drops without wiring them up. Variants are reachable
from emitters but the planner doesn't produce them yet; the apply
path returns an explicit not-yet-implemented error if one shows up
via deserialization.

Added:

- `DropMode { Soft, Hard }` — orthogonal to `SafetyTier`. Tier
  classifies the rule's risk class; mode is the operator's intent
  for data treatment.
    - `Soft` → catalog tombstone, data retained. Tier: safe.
    - `Hard` → Lance-level removal. Tier: destructive; will require
      --allow-data-loss to apply (commit 7).

- `SchemaMigrationStep::DropType { type_kind, name, mode }` and
  `SchemaMigrationStep::DropProperty { type_kind, type_name,
  property_name, mode }` variants.

- Re-export `DropMode` from `omnigraph_compiler::DropMode` so
  downstream crates don't reach into the catalog submodule.

- CLI `render_schema_plan_step` arms for both variants, surfacing
  the mode in plan output: `drop property 'Person.age' of node
  'Person' (soft mode)`.

- `apply_schema_with_lock` exhaustive match arm for the two new
  variants that returns `manifest_internal` with a clear
  not-yet-implemented message. If a SchemaIR JSON containing
  Drop{Type,Property} arrives (e.g. from a future tool or hand-
  written), the apply path fails explicitly rather than silently
  misclassifying.

- Two new in-source tests:
    - `drop_steps_round_trip_through_serde` — pins the wire shape
      for all four (variant × mode) combinations.
    - `drop_mode_serde_uses_snake_case` — pins external-tool-
      friendly serialization (`"soft"` / `"hard"`).

Build: clean, only pre-existing warnings.
Tests:
- omnigraph-compiler schema_plan: 6/6 (4 existing + 2 new).
- omnigraph-engine schema_apply: 11/11 (unchanged — planner still
  emits UnsupportedChange for removal paths).

Next commit (commit 3 per docs/schema-lint-v1-plan.md): add the
`tombstoned: bool` fields to NodeIR / EdgeIR / PropertyIR for the
catalog representation of soft-mode tombstones.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* plan doc: reframe v1 around Lance native drop_columns

After a substrate audit of the Lance data-evolution guide on
2026-05-13, the v1 plan was simplified. Two key findings:

1. Lance's `drop_columns()` is already metadata-only and reversible
   via time travel until cleanup. No need for a parallel
   `tombstoned: bool` field in our catalog IR — Lance's version
   graph IS the tombstone.

2. The full schema_apply substrate migration (add_columns,
   drop_columns, alter_columns vs. stage_overwrite across all step
   types) is consolidated in MR-948 as a sibling issue. v1 only
   uses the relevant slice (drop_columns for OG-DS-1XX).

Net plan changes:

- Commit 3 (original): tombstone fields on catalog IR → dropped.
  No catalog IR change needed. The Lance drop_columns commit IS the
  tombstone.

- Commit 5 (original): apply path writes tombstoned: true → replaced
  with: apply path calls Dataset::drop_columns([name]).

- Commit 7 Hard mode: stage_overwrite removing the column → replaced
  with: drop_columns + compact_files + cleanup_old_versions. Same
  APIs omnigraph cleanup already uses.

- Commit 8 (original): omnigraph schema unhide → dropped. Time
  travel is the undo (omnigraph snapshot --at <commit>).

Net result: 8 commits → 5 commits. ~250 LoC less surface. More
substrate-aligned.

The chassis types from commit 2 (DropMode enum, DropType /
DropProperty variants) are kept exactly as designed; only the
implementation strategy changed.

The Lance docs quote is included in the doc so future readers see
the substrate behavior cited verbatim.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* schema-lint v1 commit 3: emit + apply DropProperty { Soft }

Wire the dormant DropProperty variant end-to-end for the Soft case.
Per docs/schema-lint-v1-plan.md, commit #3 of the schema-lint chassis
v1 series (MR-694).

Planner (schema_plan.rs):
- plan_properties: emit DropProperty { type_kind, type_name,
  property_name, mode: Soft } instead of UnsupportedChange when a
  property exists in accepted but not in desired. Plan is now
  supported = true for drop-only changes.

Apply (schema_apply.rs):
- Route DropProperty { Soft } through rewritten_tables. The existing
  batch_for_schema_apply_rewrite path already iterates the *target*
  schema fields, so a property absent from desired_catalog is
  naturally projected away. The prior Lance version retains the
  dropped column for time-travel reversibility (until cleanup runs).
- DropType still errors (lands in commit #4 with different mechanics:
  __manifest entry removal instead of column projection).
- DropProperty { Hard } still errors (lands in commit #5 with
  --allow-data-loss CLI flag + immediate compact_files +
  cleanup_old_versions).

Tests:
- Planner unit test plan_emits_soft_drop_for_removed_nullable_property
  asserts the variant emission + supported = true + no UnsupportedChange.
- Integration test apply_schema_drops_a_nullable_property_softly_
  preserves_prior_version (replaces the former
  apply_schema_rejects_dropping_a_property_with_data) asserts:
  (a) plan contains DropProperty { Soft }
  (b) apply succeeds + manifest advances + row count unchanged
  (c) current dataset schema lacks the dropped column
  (d) snapshot_at_version(pre_drop) still has the dropped column
  (e) reopen consistency — drop preserved across engine restart

Recovery: rides on SidecarKind::SchemaApply per MR-847. No new
sidecar kind needed; the entire apply path is already sidecar-wrapped.

Substrate alignment: this commit uses the stage_overwrite full-rewrite
path (full_rewrite cost class) rather than Lance native drop_columns
(catalog_only cost class). MR-948 is the follow-up substrate-alignment
refactor that introduces a LanceColumnOp surface and switches the
metadata-only case onto drop_columns. Functional outcome is identical;
cost-class improvement deferred.

Test results:
- cargo test -p omnigraph-compiler --lib: 238 passed
- cargo test -p omnigraph-engine --test schema_apply: 11 passed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* docs: move schema-lint-v1-plan into docs/dev/ + add to index

Post-rebase fixup for the docs split (#93). The plan doc was added
to docs/ at the top level before main reorganized to docs/{user,dev}/.
This moves it into docs/dev/ and adds an entry to docs/dev/index.md
under a new "Active Implementation Plans" section so the
check-agents-md.sh link check passes.

Per the original commit message (617a77d), the plan doc is intentionally
temporary — it will be deleted when v1 lands.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 16:30:03 +03:00
Andrew Altshuler
60eee78465
docs: split user and developer docs (#93) 2026-05-15 03:45:22 +03:00
Andrew Altshuler
c142dafdf3
schema-lint chassis v0: code-tagged diagnostics (MR-694) (#87)
First slice of the schema-lint chassis. Adds stable `OG-XXX-NNN`
codes to schema-migration rejections so operators can suppress, look
up, and filter on identifiers rather than free-text prose. Atlas-style
chassis adapted to omnigraph's typed-IR substrate (no SQL injection
vector, no per-engine locks, native edge/vector/embedding types).

What's in v0:

- New `omnigraph-compiler/src/lint/` module with:
  - `diagnostic.rs` — Family / SafetyTier / Severity enums covering ten
    families (DS, MF, CD, BC, NM, OW, NL, VE, ED, LK). Only DS and MF
    are populated in this PR.
  - `codes.rs` — 8 DiagnosticCode constants (OG-DS-101..105,
    OG-MF-103, OG-MF-104, OG-MF-106). Five of the eight are wired to
    real emission sites; the other three are reserved.
  - Unit tests for catalog invariants: codes unique, prefix matches
    family, suffixes are 3-digit, destructive defaults to error,
    lookup() works, EMITTED_IN_V0 codes exist in ALL_CODES.

- `SchemaMigrationStep::UnsupportedChange` gains an optional
  `code: Option<String>` field. New `unsupported_error_message()`
  helper prefixes the message with `[code]` when present.

- 5 of 17 existing rejection paths now carry codes:
  - `removing node type` → OG-DS-102
  - `removing edge type` → OG-DS-103
  - `removing property` → OG-DS-104
  - `adding required property without backfill` → OG-MF-103
  - `changing property type` → OG-MF-106
  Remaining 12 paths carry `code: None` and are tagged as future work.

- `schema_apply` surfaces the formatted error (with `[code]` prefix);
  CLI `omnigraph schema plan` renders the code on the
  `unsupported change on <entity>` line.

- PR #62 destructive-rejection tests in `tests/schema_apply.rs` now
  assert on the stable code (`msg.contains("OG-DS-104")`) instead of
  the error-message substring. 11/11 tests pass.

- New `docs/schema-lint.md` documents the v0 catalog + the 10 families
  + Atlas prior art. AGENTS.md index updated.

What's explicitly NOT in v0 (subsequent PRs):

- No severity config in `omnigraph.yaml` (MR-694 §2).
- No `@allow(OG-XXX-NNN, "rationale")` suppression directive (§3).
- No `--allow-data-loss` flag or destructive-tier enforcement.
- No new `SchemaMigrationStep` variants (soft/hard drops, default,
  widen/narrow). MR-700, MR-697 land those.
- No pre-migration checks (MR-941).
- No CD / VE / LK / NM family rules (MR-942..945).
- No CI integration (MR-946).

Tests: 235 compiler tests, 11 schema_apply integration tests, 14
lint module tests, 55 CLI tests — all green.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-13 17:08:18 +03:00
Ragnor Comerford
f28f644bf2
Merge pull request #83 from ModernRelay/devin/1778623807-remove-orphan-loader-files
Remove orphaned loader/{constraints,embeddings,jsonl}.rs files
2026-05-12 21:03:36 -07:00
Ragnor Comerford
53d41a30b4
Merge pull request #85 from ModernRelay/ragnorc/survey-state
engine: pin stable-row-id preservation through stage_overwrite
2026-05-12 17:24:55 -07:00
Ragnor Comerford
a30d1cc0dc
engine: stage_overwrite sets enable_stable_row_ids explicitly
Defensive — Lance 4.0.0 preserves the source dataset's flag through
Operation::Overwrite even when WriteParams omits it (pinned by the
prior commit's test), but setting it explicitly matches the public
overwrite_dataset path at line 454 and documents the dependency at
the call site so a future refactor doesn't accidentally drop it.

Setting it on a dataset created without stable row IDs is a no-op
per Lance's row-id-lineage spec, so this stays correct for legacy
datasets.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 16:57:05 -07:00
Ragnor Comerford
549060f297
tests: pin stable-row-id preservation across stage_overwrite
stage_overwrite is used by schema_apply to rewrite tables when an
additive migration touches data. If Lance Operation::Overwrite ever
stopped preserving the source dataset's enable_stable_row_ids flag,
every schema_apply that triggers a rewrite would silently disable
stable row IDs on the affected tables and downstream readers that
depend on _rowid stability (change-feed validators, index
reconcilers) would observe silent corruption.

Empirically Lance 4.0.0 does preserve the flag through Overwrite
even when WriteParams omits it — but the preservation isn't
documented at the Lance spec level, so pin it here. Any future
behaviour change surfaces as a test failure rather than silent
corruption.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 16:56:58 -07:00
Devin AI
327eb821b5 Remove orphaned loader/{constraints,embeddings,jsonl}.rs files
These three files in crates/omnigraph/src/loader/ have no `mod`
declaration anywhere in the workspace and no `#[path = "…"]`
reference. They are not compiled — `touch`-ing them does not trigger
`cargo check` to recompile anything.

Their imports (`crate::catalog::schema_ir`, `crate::error::NanoError`,
`crate::store::manifest::hash_string`, `crate::types::ScalarType`,
`super::super::graph::DatasetAccumulator`) reference modules that no
longer exist in the engine crate, so they could not even be wired in
without further work. They are vestigial code from an earlier
monolithic crate layout. The live functionality is independently
implemented inside crates/omnigraph/src/loader/mod.rs.

These files have been orphaned since the initial public commit.

`cargo check --workspace --all-targets` and
`cargo test --workspace --no-run` both pass with no new warnings.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-12 22:57:20 +00:00
Claude
a9c4423b82 Strengthen cleanup-then-optimize sequencing test with postconditions
Reviewer feedback on PR #62: the original
`cleanup_then_optimize_succeed_in_sequence` only unwrapped both calls
and asserted nothing, so it didn't validate the claimed sequencing
behavior. The concern that motivates the test is that cleanup destroys
version history and optimize on a freshly-cleaned table could trip on
dropped fragment refs or stale manifests.

Rename to `cleanup_then_optimize_preserves_rows_and_table_remains_writable`
and add three concrete postconditions: row counts in both Person and
Company tables survive the sequence; the head remains readable; and a
subsequent merge load still succeeds.
2026-05-12 23:36:01 +03:00
Claude
57a62756c5 Exercise actual type rename in schema-apply rename test
The previous version of `apply_schema_renames_node_type_via_rename_from_and_preserves_rows`
kept the node name as `Person` (`@rename_from("Person")`) and only renamed
a property. The planner only emits a `RenameType` step when the new name
differs from the accepted one, so the test name overstated what it
covered: a regression in `RenameType` step emission or in the
coordinator's table-key remap during type rename could pass while the
test still went green.

Rename the desired node from `Person` to `Human` (with
`@rename_from("Person")`), update the dependent edge endpoints to point
at `Human`, and assert both the `RenameType` step and that the manifest
table key has moved from `node:Person` to `node:Human`.
2026-05-12 23:36:01 +03:00
Claude
e22d468e27 Add maintenance + destructive-migration test coverage
The audit of test coverage flagged three holes:

- `omnigraph optimize` and `omnigraph cleanup` had no integration tests
  (no `maintenance.rs`). Add one covering empty/idempotent edges, the
  policy-validation contract on `cleanup`, and head preservation under
  aggressive policies.
- `apply_schema` only covered I32 -> I64 type-change rejection. Add the
  symmetric narrowing case plus rejections for the other destructive
  shapes (drop property with data, drop node type, drop edge type, add
  required property without backfill) and assert the manifest version
  doesn't advance. Add a positive `@rename_from` case to pin the
  stable-type-id contract preserves rows through a rename.
- `docs/testing.md` was missing `validators.rs` and the new
  `maintenance.rs` from its file table; bump the count and add rows.
2026-05-12 23:36:01 +03:00
devin-ai-integration[bot]
6914e0256e
MR-786: merge-pair truth table with exhaustive op-variant matrix (#81)
* MR-786: merge-pair truth table with exhaustive op-variant matrix

Add crates/omnigraph/tests/merge_truth_table.rs that enumerates every
(left_op, right_op) cell from the operation vocabulary named in the
ticket — {noop, addNode, removeNode, addEdge, removeEdge, setProperty,
dropProperty, addLabel, removeLabel} — and asserts the deterministic
outcome of Omnigraph::branch_merge against a structured oracle.

The matrix is built in a 9x9 match in build_case, so adding a new
OpVariant is a compile-time, fail-on-omission task. Today's mutation
grammar only exposes insert | update set | delete (see
docs/query-language.md), so the 36 cells over the first six ops are
executable and the 45 cells involving dropProperty/addLabel/removeLabel
are recorded as Expected::Unsupported with a note. Each executable cell
spins up a fresh tempdir, applies one mutation per branch, calls
branch_merge, and asserts either:

  * MergeOutcome (AlreadyUpToDate / FastForward / Merged) plus a
    GraphAssert on the affected entities, or
  * an OmniError::MergeConflicts whose entries match the expected
    table_key + MergeConflictKind (row_id is optional because edge
    ULIDs are generated at runtime).

branch_merge is directional, so the (L, R) and (R, L) cells live in
separate entries in the matrix and are run independently — the
op-pair symmetry encoded in build_case serves as the commutativity
oracle without doubling the runtime. End-to-end the suite runs in
~10s on a fresh build, well under the 30s budget asserted at the
bottom of the test.

Also adds a row to docs/testing.md so the test-coverage map points
future agents at this file.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* Use one Omnigraph handle for both branches

Self-review caught that the runner was opening two Omnigraph handles
on the same temp dataset (one for main, a second via Omnigraph::open
for feature). tests/branching.rs uses one handle and passes the branch
name to mutate_branch — same pattern works here and avoids any
cache-coherency surprises between the two handles. Also drops the
post-merge reopen, which only existed to give the second handle a
fresh snapshot.

Runtime drops ~10s -> ~9s.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* Assert exact conflict count, not subset inclusion

cubic and Devin Review both flagged that check_outcome's
Expected::Conflicts arm only enforces want ⊆ got, so a regression that
produces a spurious extra conflict (e.g. emitting both OrphanEdge and
a stray DivergentInsert) would silently pass the truth-table cell.

For a deterministic oracle that's the wrong direction — the cell pins
the exact conflict-artifact set, not a lower bound. Add an
assert_eq!(got.len(), want.len()) before the existence loop. All 36
executable cells still pass; runtime unchanged.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* Subsume 4 conflict tests in branching.rs into truth table

The four `branch_merge_reports_*_conflict` tests
(DivergentUpdate / DivergentInsert / DeleteVsUpdate / OrphanEdge)
were redundant with the deterministic-oracle cells in the new
`merge_truth_table.rs` and only added drift risk.

To preserve the post-conflict invariant that lived in
`branch_merge_reports_divergent_update_conflict` (target unchanged
after a failed merge), the truth-table runner now generalizes it:
on every `Conflicts` cell, main's state is asserted against
`state_after_apply_only(right_op)`. That gives strictly more
coverage than the deleted tests carried, since the invariant now
applies to *all* seven conflict cells, not just one.

The `UniqueViolation` and `CardinalityViolation` cases stay in
`branching.rs` — they're combinatorial (require >1 op per side
with a non-default schema) and out of scope for the pair-wise
truth table.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

* Fix misleading 'Total edges: 0' comment in (AddEdge, RemoveEdge) cell

Devin Review flagged that the comment said 'Total edges: 0' while the
parenthetical math evaluates to 1 (matching `GraphAssert::base()`).
The assertion is correct; only the leading number in the comment was
wrong. Reworded to 'Net edges: … = 1 (matches base)' so the prose
agrees with both the math and the assertion.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>

---------

Co-authored-by: Ragnor <ragnor@modernrelay.com>
Co-authored-by: Ragnor Comerford <ragnor.comerford@gmail.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-05-12 22:36:01 +03:00
Ragnor Comerford
676c9eab05
Merge pull request #78 from ModernRelay/devin/1778363660-mr-901-blob-branch-merge
Fix branch merge with blob columns
2026-05-12 07:31:04 -07:00
Devin AI
725d41205e Drop redundant server-level regression test
The matrix cell d:merge×change:into-target already exercises this
race: pre-fix it flakes ~20% on shared-CPU hardware (sentinel 409s);
post-fix it passes 100% regardless of which side of the racing pair
returns first. That flake-to-stable transition is the regression
signal.

The replacement test (concurrent_merge_clean_409_does_not_poison_next_
change_on_target) tried to sharpen this by looping until the clean-
409 path fired and then strictly requiring it. On fast CI hardware
the race window never opens in 50 iterations, which made the strict
variant fail in CI despite passing 10/10 locally. The bug genuinely
needs a real concurrent writer to advance on-disk manifest during
the swap window — a deterministic failpoint can't substitute because
forcing the merge body to Err without a real concurrent writer leaves
no cache-vs-disk drift to validate.

Reverting to the matrix cell as the sole regression coverage. Updated
the comment in merge.rs accordingly.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 21:57:47 +00:00
Devin AI
a6c7e5fab5 Use if-let shape for refresh outcome handling
Switch from match-on-Result to if-let-Err so the refresh outcome and
merge_result outcome are checked independently, making the intent
clearer: 'attempt refresh; on Ok-merge-with-refresh-error propagate;
on Err-merge-with-refresh-error log and surface the original merge
error'. No semantic change — both shapes were valid (wildcard patterns
don't move the scrutinee) — but the if-let form sidesteps a
needs-second-reading question raised in code review.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 21:50:26 +00:00
Devin AI
7d1a40102c Address review feedback
merge.rs: best-effort refresh on the Err path so a refresh-time
storage error doesn't replace the merge body's structured error
(typically the manifest_conflict that the HTTP layer maps to a 409
with a structured payload) with a less informative one. Ok-path
behavior is unchanged — there a refresh failure is propagated so the
caller knows the coord's cache is unsynced.

server.rs: bump MAX_ITERATIONS to 50 and assert at the end that the
named clean-409 path actually fired at least once. With ~20% per-iter
rate on shared-CPU CI (per the original MR-923 repro), P(no hit in
50) is < 0.002%. Without this assertion the test silently degraded
to exercising only the 200-merge path — covered already by the
matrix cell.

Both changes per Devin Review + cubic comments on PR #80.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 21:35:18 +00:00
Devin AI
b7353e1dc7 Use refresh_coordinator_only to avoid racing branch_merge's sidecar
The previous fix used `self.refresh()` to sync the restored
coordinator's cache after the swap-restore window. `refresh` runs the
`RollForwardOnly` recovery sweep — which, on the merge Err path with a
phase-B failure (sidecar written, per-table HEAD advanced, manifest
publish skipped), would observe the merge's own in-flight sidecar and
close it here.

That violates the contract documented on `Omnigraph::refresh`:

> Engine-internal callers that already hold an in-flight sidecar
> (e.g. `schema_apply` mid-write) MUST use `refresh_coordinator_only`
> to avoid the recovery sweep racing their own sidecar.

The post-restore step's purpose is to sync the coord cache with disk,
not to run recovery, so `refresh_coordinator_only` is the right
primitive on both paths. CI surfaced this via
`branch_merge_phase_b_failure_recovered_on_next_open` in
`crates/omnigraph/tests/failpoints.rs`, which asserts the sidecar
persists after the failpoint fires.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 21:09:44 +00:00
Devin AI
e91d5615c6 Fix MR-923: refresh restored coordinator on merge Err path
branch_merge_impl swaps the coordinator for the merge target, runs the
merge body, then restores the original coordinator. A concurrent /change
on the same target during this window publishes against the swapped
coord, advancing on-disk manifest state that the restored coord doesn't
see.

The post-restore refresh was previously gated on merge_result.is_ok(),
so the clean-409 path (merge body's post_queue_snapshot drift check
returning a recoverable conflict) left the restored coord's cached
snapshot stale relative to disk. The next sequential /change seeded its
publisher expected_versions from that stale cache and 409'd with
ExpectedVersionMismatch — a non-retryable conflict surfaced to a caller
with no concurrent writer of their own.

Refresh on both Ok and Err paths so cached state cannot diverge from
the manifest across the swap-restore window.

Add a focused regression test
(concurrent_merge_clean_409_does_not_poison_next_change_on_target) that
loops the cell-d scenario until the clean-409 branch fires and asserts
the follow-up sentinel succeeds in that branch specifically.

Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 20:31:18 +00:00
Devin AI
fca2b74dee Materialize external blob URIs during branch merge
Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-11 12:54:04 +00:00
Devin AI
da89e18e62 Merge main into blob merge fix
Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-10 21:55:02 +00:00
Devin AI
e44a4704eb docs: fix admission gating description 2026-05-10 14:16:26 +00:00
Devin AI
a42d178119 release: prepare omnigraph 0.4.2 2026-05-10 14:02:28 +00:00
Devin AI
31b8ffe7b5 engine: inline-delete sidecar covers version-mismatch check 2026-05-10 10:37:46 +00:00
Devin AI
01660faa26 Tighten blob descriptor validation
Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-10 09:28:44 +00:00
Devin AI
16ac166059 Fix branch merge with blob columns
Co-Authored-By: Ragnor Comerford <ragnor.comerford@gmail.com>
2026-05-09 22:33:29 +00:00
Devin AI
6a3f0677ae server: drop unwired try_admit_rewrite / 503 admission surface 2026-05-09 20:58:17 +00:00
Devin AI
4bb7964af9 tests: matrix cell k asserts post-reopen row count 2026-05-09 20:16:44 +00:00