Lakehouse-native graph engine with git-style workflows https://omnigraph.dev
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Ragnor Comerford 0e5aa036f4
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>
2026-05-25 20:20:35 +02:00
.cargo Raise LANCE_MEM_POOL_SIZE to 1 GB in .cargo/config.toml 2026-04-19 22:27:49 +03:00
.context Investigate Lance MergeInsertBuilder CAS granularity (MR-766 prereq) 2026-04-28 23:30:17 +00:00
.github ci(publish-crates): set User-Agent + treat "already exists" as success (#117) 2026-05-23 14:19:17 +01:00
crates mr-668: Cedar resource-model refactor (PR 6a/10) 2026-05-25 20:20:35 +02:00
docker Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00
docs Rename repo terminology to graph (#118) 2026-05-24 16:46:00 +01:00
scripts Rename repo terminology to graph (#118) 2026-05-24 16:46:00 +01:00
.dockerignore Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00
.gitignore release: v0.5.0 (#115) 2026-05-23 13:59:42 +01:00
AGENTS.md Rename repo terminology to graph (#118) 2026-05-24 16:46:00 +01:00
Cargo.lock mr-668: add GraphHandle + GraphRegistry data structure (PR 3/10) 2026-05-25 19:30:49 +02:00
Cargo.toml exec/query: structured Expr pushdown via Scanner::filter_expr (unblocks CompOp::Contains) (#113) 2026-05-23 12:47:33 +01:00
CLAUDE.md Add AGENTS.md as canonical agent guide; symlink CLAUDE.md to it 2026-04-28 23:10:09 +02:00
CODE_OF_CONDUCT.md Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00
CONTRIBUTING.md Merge remote-tracking branch 'origin/main' into ragnorc/explore-api 2026-04-18 20:24:39 +02:00
Dockerfile Dockerfile: switch base from Docker Hub to ECR Public 2026-04-20 13:46:23 +03:00
LICENSE Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00
og-cheet-sheet.md Add query lint and check commands 2026-04-13 00:37:44 +03:00
omnigraph.example.yaml example config: use graphs / cli.graph, matching the MR-603 rename 2026-04-18 23:40:35 +03:00
openapi.json Rename repo terminology to graph (#118) 2026-05-24 16:46:00 +01:00
README.md Rename repo terminology to graph (#118) 2026-05-24 16:46:00 +01:00
rust-toolchain.toml Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00
SECURITY.md Initial public Omnigraph repository 2026-04-10 20:49:41 +03:00

Omnigraph

License: MIT Rust Crates.io CI

Object-storage native graph engine with git-style workflows. Designed for agents as first-class operators.

Branch, commit, and merge typed graph data like source code. Multi-modal, self-hosted, open source.

Built on Rust, Arrow, DataFusion and Lance.

Join the Omnigraph Slack community

Use Cases

  • Company brains / Second brains
  • Context graphs
  • Backbone for multi-agent research
  • Incident response graphs
  • Compliance & audit graphs
  • Enterprise knowledge systems

Capabilities

  • Typed schema, typed queries, and typed mutations
  • Native blob-as-data support (docs, images, videos, etc)
  • Schema-as-code, query validation and linting
  • Git-style graph workflows: branches, commits, merges, and transactional runs
  • Local, on-prem & cloud S3-native storage with snapshot-pinned reads
  • Graph traversal + text, fuzzy, BM25, vector, and RRF search in one runtime
  • Policy-as-code for server-side access control
  • Single CLI for multiple deployments

Quick Install

curl -fsSL https://raw.githubusercontent.com/ModernRelay/omnigraph/main/scripts/install.sh | bash

This installs omnigraph and omnigraph-server into ~/.local/bin from published release binaries.

Or install with Homebrew:

brew tap ModernRelay/tap
brew install ModernRelay/tap/omnigraph

For starter graphs and agent skills to bootstrap and operate Omnigraph, see ModernRelay/omnigraph-cookbooks.

One-Command Local RustFS Bootstrap

curl -fsSL https://raw.githubusercontent.com/ModernRelay/omnigraph/main/scripts/local-rustfs-bootstrap.sh | bash

That bootstrap:

  • starts RustFS on 127.0.0.1:9000
  • creates a bucket and S3-backed graph
  • loads the checked-in context fixture
  • launches omnigraph-server on 127.0.0.1:8080

Docker must be installed and running first.

The RustFS bootstrap prefers the rolling edge binaries and only falls back to source builds when release assets are unavailable.

If a previous run left objects under the same graph prefix but did not finish initializing the graph, rerun with RESET_REPO=1 or set PREFIX to a new value.

Common Commands

The same URI works for local paths, s3://…, or http://host:port.

omnigraph init   --schema ./schema.pg ./graph.omni
omnigraph load   --data   ./data.jsonl ./graph.omni
omnigraph read   --query  ./queries.gq --name get_person --params '{"name":"Alice"}' ./graph.omni
omnigraph change --query  ./queries.gq --name insert_person --params '{"name":"Mina"}' ./graph.omni
omnigraph branch create --from main feature-x ./graph.omni
omnigraph branch merge  feature-x --into main ./graph.omni

See docs/user/cli.md for schema apply, snapshots, ingest, runs, and policy commands.

Docs

Build And Test

cargo build --workspace
cargo check --workspace
cargo test --workspace

Notes:

  • Rust stable toolchain, edition 2024
  • CI runs cargo test --workspace --locked
  • Full CI and some local test flows require protobuf-compiler
  • S3 integration tests expect an S3-compatible endpoint such as RustFS

Workspace Crates

  • crates/omnigraph-compiler: shared schema/query parser, typechecker, catalog, and IR lowering
  • crates/omnigraph: storage/runtime, branching, merge, change detection, and query execution
  • crates/omnigraph-cli: CLI for init/load/ingest/read/change/branch/snapshot/export/policy operations
  • crates/omnigraph-server: Axum HTTP server for remote reads, changes, ingest, export, branches, commits, and runs

Contributing

Please open an issue, spec, or design discussion before sending large code changes. Design feedback and concrete problem statements are the fastest way to collaborate on the roadmap.

Community

Join the Omnigraph Slack community to ask questions, share feedback, and follow development.