e0d88d1295
* fix(unique): collision-free tuple key shared by intake and merge, loud on un-keyable types Hardening on top of #133. That PR introduced a shared `loader::composite_unique_key(parts)` joining per-column scalars with U+001F and routed both intake and branch-merge through it, closing the original '|' vs U+001F separator drift. This takes the shared keying the rest of the way to correct-by-design: - Collision-free by construction: the key is now the tuple of per-column scalar strings (Vec<String>) keyed directly, no separator, so no data value (not even a literal U+001F) can forge a collision. - One scalar converter across both paths: intake used an explicit type-match, merge used Arrow's array_value_to_string. Both now derive the key through composite_unique_key(group_columns, row), so they can't drift on conversion. - Loud on un-keyable types: the scalar converter returned None for any Arrow type it didn't recognize, and the caller treated None as null-exempt, so a @unique on a column type it couldn't reduce (list, blob) was silently un-enforced. It now returns Err, surfacing the constraint it can't enforce instead of weakening it in silence. Tests: - consistency::composite_unique_key_is_consistent_across_intake_and_merge pins that intake and merge key the tuple identically (load-on-branch then merge of values containing '|'). - loader unit tests pin tuple keying + null exemption and the loud error on an un-keyable (binary) column. Docs: invariants truth-matrix updated; stale loader/mod.rs line pointers fixed. Scope unchanged: intra-batch / merge-candidate-set only; cross-version uniqueness against committed rows stays a documented gap. * fix(unique): cover all string encodings; make format_tuple private (PR #160 review) Addresses two Greptile P2 comments on PR #160: - unique_key_scalar handled only StringArray (Utf8). The loud-on-unknown-type behavior turned any legal string column that read back as LargeUtf8 or Utf8View into a hard write failure (the old code silently returned None). Add LargeStringArray and StringViewArray arms so a legal string column is keyable in every physical Arrow encoding; the Err path now fires only for a genuinely un-keyable logical type (list/blob/vector), never a legal value in an unenumerated encoding. - format_tuple was pub(crate) but only used within loader/mod.rs; make it a private fn (matches the old format_unique_columns it replaced, minimal exposed surface). New unit test unique_key_scalar_handles_all_string_encodings pins that Utf8 / LargeUtf8 / Utf8View all render rather than error. |
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|---|---|---|
| .cargo | ||
| .context | ||
| .github | ||
| crates | ||
| docker | ||
| docs | ||
| scripts | ||
| .dockerignore | ||
| .gitignore | ||
| AGENTS.md | ||
| Cargo.lock | ||
| Cargo.toml | ||
| CLAUDE.md | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| Dockerfile | ||
| GOVERNANCE.md | ||
| LICENSE | ||
| og-cheet-sheet.md | ||
| omnigraph.example.yaml | ||
| openapi.json | ||
| README.md | ||
| rust-toolchain.toml | ||
| SECURITY.md | ||
Omnigraph
Lakehouse native graph engine built for context assembly
Omnigraph acts as operational state & coordination layer for agents
- Git-style versioning & branching
- Multimodal retrieval (graph+vector/fts+filters) optimized for context assembly
- Object storage native (S3, RustFS)
- Native blob-as-data support (docs, images, videos, etc)
- VPC, On-prem, hybrid deployment
Lanceformat as open storage layer
| AS CODE | What it means |
|---|---|
| Schema AS CODE | Typed .pg schemas, planned, applied, enforced |
| Context AS CODE | Linted queries & agentic nudges, versioned and reusable |
| Security AS CODE | Cedar policies enforced server-side on every mutation |
| Dashboards AS CODE | Declarative views & controls over the graph (coming) |
Core Use Cases
| Use case | What it's for |
|---|---|
| Company brain | Org knowledge unified into one queryable graph |
| Context graph | Decision traces and codified tribal knowledge |
| Agentic memory | Durable, versioned memory for long-running agents |
| Dev graph | Issues & dependency model for coding agents |
| R&D data layer | Experiments & trials data written into branches |
| ML workflows | Versioned, branchable graphs for training & eval |
| Karpathy's LLM wiki | A living, agent-updatable knowledge base |
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-serveron127.0.0.1:8080
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, commits, and policy commands.
Clients
For programmatic access to a running omnigraph-server:
-
TypeScript SDK —
@modernrelay/omnigraph(source). Instance-per-client, typed errors, camelCase types, async-iterator streaming export.npm install @modernrelay/omnigraph -
Model Context Protocol server —
@modernrelay/omnigraph-mcp(source). Bridges Omnigraph to LLM hosts (Claude Desktop, Claude Code, …) over stdio. Exposes tools and resources for schema, branches, queries, mutations, ingest, and bundles curated best-practices guidance from the cookbook.npm install -g @modernrelay/omnigraph-mcp
Both packages are versioned in lockstep with omnigraph-server on major.minor: @modernrelay/omnigraph@X.Y.* targets omnigraph-server@X.Y.*. See ModernRelay/omnigraph-ts for the monorepo.
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 loweringcrates/omnigraph: storage/runtime, branching, merge, change detection, and query executioncrates/omnigraph-cli: CLI for graph lifecycle (init/load/ingest), query/mutate, branch/commit/merge, schema/lint, snapshot/export, policy, and maintenance (optimize/cleanup)crates/omnigraph-server: Axum HTTP server for remote reads, changes, ingest, export, branches, and commits
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.