v0.2.0

Added

• Transitive impact: impact <symbol> --depth N (and a depth argument on the MCP tool) walks callers and callees breadth-first up to 5 hops. Edge rows carry a hops field, traversal is cycle-safe, and each direction caps at 500 edges with a self-describing kind: "truncated" marker row instead of silent loss. (#8)
• Agent navigation tools: neighbors <path> / MCP file_neighbors return a file's structural neighborhood (symbols, import links, call-connected files with edge counts); search accepts a path filter (--path / MCP path) to scope results to a directory; a repos MCP tool reports the default database's freshness and discovers indexed repositories under caller-supplied roots. (#6)
• MCP context tool accepts format: "json" | "markdown", so agents can pull the Brigade-ready markdown pack directly over MCP. (#4)
• stats now reports synced_at, tool_version, and per-language file counts. (#6)
• Dockerfile and .dockerignore for a containerized graphtrail-mcp, an AGENTS.md for coding agents, and a rust-version = "1.85" MSRV pin. (#7)

Changed

• Call resolution is qualifier- and import-aware (schema v2): member and scoped calls (a.save(), Type::new(), module.func()) resolve through the enclosing container or the importing file's imports, including relative Python modules and Rust crate paths, instead of fanning out to same-named symbols. Calls into stdlib or third-party modules no longer produce edges. On a ~4.6k-symbol repo this removed two-thirds of the edges (all false positives) while leaving files and symbols identical. Rebuild existing indexes with graphtrail sync <repo> --force. (#5)
• Ambiguous cross-file fallback resolution is deterministically ordered, so repeated syncs produce identical edge sets. (#4)
• A no-op incremental sync now updates the synced_at meta key, making index freshness distinguishable from staleness. (#4)
• Query commands (search, callers, callees, impact, context, stats) open the database read-only; only init and sync open it writable. (#4)
• Context packs render one location contract everywhere: symbols as file:start-end, edges as source file:line -> target file. (#4)

Fixed

• The MCP server returns proper JSON-RPC errors (-32700 parse, -32600 invalid request, -32602 invalid params, including non-string repo/db selectors that previously fell back to the default database silently) and clamps limits before SQLite integer binding. (#4)