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General server/topology/auth/deployment RFC resolving the half-built tenancy ambiguity (cluster-only server vs pooled tenant_id scaffolding). Decision: the cluster is the tenant is the cell — silo the data (own storage/catalog/ policy/tokens), pool the compute (one process : N cells). No row-level pooling (no engine RLS). - §5.1 CellRuntime lifts today's per-cluster runtime into a value. - §5.2/§5.3 AppState holds a CellRegistry; resolve_cell is one new outer middleware hop before auth; the per-graph + Cedar + MCP stack is unchanged. - §5.4 per-cell CellAuth (Static | Oidc TokenVerifier); WorkOS org -> cell 1:1 with per-cell OAuth audience (cross-tenant token replay fails on aud). - §5.5 Cedar stays per-graph/per-cell; default-deny-read becomes safe; no tenant dimension needed. - §5.6 control plane = Cell Registry (metadata only) + provisioning-as-code; cell hot-load is the one safe runtime mutation (cell-granular, not graph). - §5.7 tiered dedicated/pooled/on-prem on one binary; §7 backward-compatible (today's single-cluster server = a one-cell map). MCP (rfc-003) is one consumer, not the driver. Linked from docs/dev/index.md.
91 lines
6.2 KiB
Markdown
91 lines
6.2 KiB
Markdown
# Developer Docs
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**Audience:** contributors, maintainers, and coding agents
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This is the contributor-facing entry point. These docs explain architecture,
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invariants, implementation contracts, test ownership, and upstream Lance
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constraints. User-facing behavior should still be documented through
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[docs/user/index.md](../user/index.md) and the relevant public reference docs.
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## Required For Every Non-Trivial Change
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| Need | Read |
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| Architectural rules, known gaps, deny-list | [invariants.md](invariants.md) |
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| Upstream Lance source-of-truth index | [lance.md](lance.md) |
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| Existing test coverage and test placement | [testing.md](testing.md) |
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## Architecture And Storage
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| Area | Read |
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| System structure, L1/L2 framing, component diagrams | [architecture.md](architecture.md) |
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| On-disk layout, manifest schema, URI behavior | [storage.md](../user/concepts/storage.md) |
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| Direct-publish writes, D2, staged writes, recovery sidecars | [writes.md](writes.md) |
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| Query execution, mutation execution, loader flow | [execution.md](execution.md) |
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| Index lifecycle and graph topology indexes | [indexes.md](../user/search/indexes.md) |
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| Branch and commit internals | [branches-commits.md](../user/branching/index.md) |
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| Three-way merge implementation and conflicts | [merge.md](merge.md) |
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| Diff/change-feed implementation | [changes.md](../user/branching/changes.md) |
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| Branch protection policy | [branch-protection.md](branch-protection.md) |
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| CODEOWNERS source of truth | [codeowners.md](codeowners.md) |
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## Language, Runtime, And Boundaries
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| Area | Read |
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| Schema grammar, catalog, migration planner | [schema-language.md](../user/schema/index.md) |
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| Query grammar, IR, lints, mutation restrictions | [query-language.md](../user/queries/index.md) |
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| Embedding client and `@embed` integration | [embeddings.md](../user/search/embeddings.md) |
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| Cedar policy surface and server gating | [policy.md](../user/operations/policy.md) |
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| Server auth, OpenAPI, endpoint handlers | [server.md](../user/operations/server.md) |
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| Error taxonomy and serialization | [errors.md](../user/operations/errors.md) |
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| Constants and tunables | [constants.md](../user/reference/constants.md) |
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| Transaction model public contract | [transactions.md](../user/branching/transactions.md) |
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## Project Operations
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| Area | Read |
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| CI and release workflows | [ci.md](ci.md) |
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| Install and deployment packaging | [install.md](../user/install.md), [deployment.md](../user/deployment.md) |
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| Release history | [releases/](../releases/) |
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## Contribution & Governance
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| Area | Read |
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| How to contribute (external) | [CONTRIBUTING.md](../../CONTRIBUTING.md) |
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| Governance model, roles, decision authority | [GOVERNANCE.md](../../GOVERNANCE.md) |
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| Public contribution RFC track | [rfcs/](../rfcs/) |
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The `docs/rfcs/` track is the **public, externally-authorable** RFC process. The
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maintainer/internal RFCs below (`rfc-00N-*.md`) are a separate, team-owned
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track; don't conflate the two.
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## Active Implementation Plans
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Working documents for in-flight feature work. Removed when the work lands.
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| Area | Read |
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| Schema-lint chassis v1 (MR-694) — `--allow-data-loss`, soft/hard drops | [schema-lint-v1-plan.md](schema-lint-v1-plan.md) |
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| Inline + stored queries, request/response envelope, MCP (MR-656 / MR-976 / MR-969) | [rfc-001-queries-envelope-mcp.md](rfc-001-queries-envelope-mcp.md) |
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| Config & CLI architecture — layered config, client targeting, file naming (MR-973 / MR-974 / MR-981) | [rfc-002-config-cli-architecture.md](rfc-002-config-cli-architecture.md) |
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| MCP server surface — full tool parity, stored queries, modular auth (MR-969 / MR-956 / MR-974) | [rfc-003-mcp-server-surface.md](rfc-003-mcp-server-surface.md) |
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| Future cluster control plane — declarative as-code config, JSON state ledger, reconciler | [cluster-config-specs.md](cluster-config-specs.md), [cluster-axioms.md](cluster-axioms.md), [cluster-config-implementation-spec.md](cluster-config-implementation-spec.md) |
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| Cluster graph & schema apply — Phase 4 sidecars, roll-forward recovery, approval artifacts | [rfc-004-cluster-graph-schema-apply.md](rfc-004-cluster-graph-schema-apply.md) |
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| Server boots from cluster state — Phase 5 mode switch, applied-revision serving | [rfc-005-server-cluster-boot.md](rfc-005-server-cluster-boot.md) |
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| Per-operator config — `~/.omnigraph/` identity, keyed credentials, named servers (the operator slice of RFC-002) | [rfc-007-operator-config.md](rfc-007-operator-config.md) |
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| Deprecate `omnigraph.yaml` — one concern per config surface; key-by-key migration map and staged retirement | [rfc-008-deprecate-omnigraph-yaml.md](rfc-008-deprecate-omnigraph-yaml.md) |
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| Unify CLI embedded/remote access paths — parity referee, shared wire-DTO crate, `GraphClient` trait, declared plane capabilities | [rfc-009-unify-access-paths.md](rfc-009-unify-access-paths.md) |
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| Restructure the CLI around explicit planes — one graph-addressing model, declared capability surface, plane-grouped help (expands RFC-009 Phase 4) | [rfc-010-cli-planes-restructure.md](rfc-010-cli-planes-restructure.md) |
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| CLI refactoring — one addressing & config model post-`omnigraph.yaml`: scope + `--graph` + derived access path, served-default / privileged-direct, profiles, named queries, capability classifier (completes RFC-008) | [rfc-011-cli-refactoring.md](rfc-011-cli-refactoring.md) |
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| Provider-independent embedding configuration — one resolved `EmbeddingConfig` + sealed provider enum (Gemini/OpenAI/Mock), identity recorded in the schema IR, query-time same-space validation, NFR floor | [rfc-012-embedding-provider-config.md](rfc-012-embedding-provider-config.md) |
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| Tenancy model — cluster-as-tenant cells (silo the data, pool the compute): `CellRuntime` lifts the per-cluster runtime, one server hosts N cells resolved by host before auth, WorkOS org→cell 1:1 with per-cell audience, tiered dedicated/pooled/on-prem on one binary | [rfc-013-tenancy-cells.md](rfc-013-tenancy-cells.md) |
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## Boundary
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Developer docs may mention implementation details, stale gaps, upstream Lance
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blockers, and review rules. User docs should not require that context unless
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the detail changes the public contract.
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