sqry - Semantic Code Search MCP server

sqry

sqry is a local semantic code search tool. It parses source code into AST-backed symbol and relationship graphs so you can ask code questions that text search cannot answer reliably.

Everything runs on your machine. Indexing and querying make no network calls, and sqry sends no telemetry.

Website: https://sqry.dev

Current Capabilities

• 37 language plugins, 28 with full relation support and 9 with symbol extraction plus imports. By build cost, 29 are on the default fast path, json is compiled but excluded by default as high-wall-clock, and 7 specialty plugins sit behind Cargo features. The sqry://meta/manifest MCP resource reports these counts for the binary you have installed.
• Structural queries over symbol kind, language, visibility, names, return types, references, and relations.
• Graph analysis for callers, callees, imports, exports, call paths, cycles, unused symbols, duplicates, impact, semantic diff, and focused subgraphs.
• Edge-backed returns: and resolution-aware resolved_via: predicates for supported graph paths. See Call resolution predicates.
• Cross-language FFI edges. The C, C++, C#, Elixir, Haskell, Kotlin, Lua, PHP, R, Ruby, and Rust plugins emit FfiCall edges from mechanisms such as extern "C", DllImport / P/Invoke, JNI, Ruby FFI attachfunction, and R .Call / Rcpp. Query them with sqry graph cross-language or the crosslanguage_edges MCP tool.
• Structural shape matching with sqry shape-match, which finds functions with similar body structure independently of their identifiers.
• A declarative rule layer. sqry rules run executes shipped rule IDs and packs, or your own TOML rule packs, against the graph; the rules_run MCP tool exposes the same engine.
• Go context propagation analysis (sqry context-propagation) for call sites that drop context.Context.
• Rust macro-boundary analysis: sqry cache expand builds a macro expansion cache, --expand-cache materializes macro-generated symbols as searchable nodes, and --cfg marks #[cfg]-gated symbols active or inactive. Both index-path options are execution-free.
• Visualization and export as Mermaid, Graphviz DOT, or D2 (sqry visualize, sqry export).
• An interactive shell (sqry shell) and batch runner (sqry batch) that keep the session cache warm across many queries.
• Incremental indexing with sqry update and sqry watch.

When To Use sqry

Use sqry when you need structural answers:

Shortened. The full README is on GitHub.