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Drafts the cloud deployment design as three earned stages — managed single-region, elastic data plane with an off-path worker tier, then BYOC/VPC/air-gapped — each winning one irreducible property. Sets foundational principles (object-storage-only commit, a soft-state control plane off the request path, one config-driven binary) drawn from turbopuffer, Neon, and WarpStream, threads the RFC 0001 auth design through every stage, and records the open decisions and invariant analysis. https://claude.ai/code/session_01N22WDYC6vv2njR5Xu96QaC
68 lines
3.1 KiB
Markdown
68 lines
3.1 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/storage.md) |
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| Direct-publish writes, D2, staged writes, recovery sidecars | [runs.md](runs.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/indexes.md) |
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| Branch and commit internals | [branches-commits.md](../user/branches-commits.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/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-language.md) |
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| Query grammar, IR, lints, mutation restrictions | [query-language.md](../user/query-language.md) |
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| Embedding client and `@embed` integration | [embeddings.md](../user/embeddings.md) |
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| Cedar policy surface and server gating | [policy.md](../user/policy.md) |
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| Server auth, OpenAPI, endpoint handlers | [server.md](../user/server.md) |
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| Error taxonomy and serialization | [errors.md](../user/errors.md) |
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| Constants and tunables | [constants.md](../user/constants.md) |
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| Transaction model public contract | [transactions.md](../user/transactions.md) |
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## Design Proposals (RFCs)
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RFCs are proposals under review, not current truth. The authoritative
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description of shipped behavior always lives in the area docs above.
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| RFC | Status | Topic |
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| [0001-federated-authentication.md](rfcs/0001-federated-authentication.md) | draft | OIDC auth with a cloud control plane plus VPC/on-prem deployment |
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| [0002-cloud-deployment-architecture.md](rfcs/0002-cloud-deployment-architecture.md) | draft | Staged cloud deployment — managed, elastic, then BYOC/VPC |
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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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## 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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