omnigraph/docs/dev/index.md
Ragnor Comerford 917b8dfa84
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>
2026-05-30 16:46:57 +02:00

3.2 KiB

Developer Docs

Audience: contributors, maintainers, and coding agents

This is the contributor-facing entry point. These docs explain architecture, invariants, implementation contracts, test ownership, and upstream Lance constraints. User-facing behavior should still be documented through docs/user/index.md and the relevant public reference docs.

Required For Every Non-Trivial Change

Need Read
Architectural rules, known gaps, deny-list invariants.md
Upstream Lance source-of-truth index lance.md
Existing test coverage and test placement testing.md

Architecture And Storage

Area Read
System structure, L1/L2 framing, component diagrams architecture.md
On-disk layout, manifest schema, URI behavior storage.md
Direct-publish writes, D2, staged writes, recovery sidecars runs.md
Query execution, mutation execution, loader flow execution.md
Index lifecycle and graph topology indexes indexes.md
Branch and commit internals branches-commits.md
Three-way merge implementation and conflicts merge.md
Diff/change-feed implementation changes.md
Branch protection policy branch-protection.md
CODEOWNERS source of truth codeowners.md

Language, Runtime, And Boundaries

Area Read
Schema grammar, catalog, migration planner schema-language.md
Query grammar, IR, lints, mutation restrictions query-language.md
Embedding client and @embed integration embeddings.md
Cedar policy surface and server gating policy.md
Server auth, OpenAPI, endpoint handlers server.md
Error taxonomy and serialization errors.md
Constants and tunables constants.md
Transaction model public contract transactions.md

Project Operations

Area Read
CI and release workflows ci.md
Install and deployment packaging install.md, deployment.md
Release history releases/

Active Implementation Plans

Working documents for in-flight feature work. Removed when the work lands.

Area Read
Schema-lint chassis v1 (MR-694) — --allow-data-loss, soft/hard drops schema-lint-v1-plan.md
Inline + stored queries, request/response envelope, MCP (MR-656 / MR-976 / MR-969) rfc-001-queries-envelope-mcp.md
Config & CLI architecture — layered config, client targeting, file naming (MR-973 / MR-974 / MR-981) rfc-002-config-cli-architecture.md

Boundary

Developer docs may mention implementation details, stale gaps, upstream Lance blockers, and review rules. User docs should not require that context unless the detail changes the public contract.