feat(mcp): query tools — get_callers/callees/deps, find_path, search_code (T5/T7/T8)#679
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…code Bundles T5 (#653), T7 (#655), T8 (#656) into one PR; all three are thin async wrappers around existing AsyncGraphQuery operations and share the same _node_summary / _coerce_node_id / _project_arg helpers. - search_code: prefix search backed by the FalkorDB fulltext index. Surfaces flat {id, name, label, file, line} so agents can hand the id straight to the navigation tools. - get_callers / get_callees: incoming / outgoing CALLS edges. The shared _neighbors_payload inlines the IN-direction Cypher because AsyncGraphQuery.get_neighbors only walks OUT. - get_dependencies: same machinery, but aggregates a configurable set of relations (default CALLS/IMPORTS/DEFINES) and dedups by node id. - find_path: returns up to N CALLS-only paths between two symbols as a node sequence; strips encode_edge entries from the alternating [node, edge, ...] list produced by AsyncGraphQuery.find_paths. Helpers: - _node_summary flattens the encode_node shape (which nests data under 'properties' and includes the 'Searchable' fulltext-index label) into the {id, name, label, file, line} agents want. - _coerce_node_id accepts int or stringified-int and rejects bool. Tests (tests/mcp/test_query_tools.py, 13 tests): - search_code prefix happy/limit/no-match/serialisability paths. - get_callees(entrypoint) ⊇ {service}; get_callers(service) ⊇ {entrypoint}. - get_dependencies includes the CALLS relation. - Neighbor tools accept string ids; reject garbage. - find_path(entrypoint → db) ≥ 1; reverse direction returns []; max_paths is honored. - All five tools are registered on the MCP app. Also drops a stray venv/ that snuck into the fixture directory and was polluting the prefix-search results. Closes #653, #655, #656. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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This was referenced May 27, 2026
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Bundles T5 (#653), T7 (#655), and T8 (#656). Stacked on #678 → #677 → #676 → #675 → #666.
Tools
search_code(prefix)prefix_search(FalkorDB fulltext)get_callers(symbol_id)(src)-[:CALLS]->(n)get_callees(symbol_id)(n)-[:CALLS]->(dest)get_dependencies(symbol_id, rels=[CALLS, IMPORTS, DEFINES])find_path(source_id, dest_id, max_paths=5)find_paths(CALLS-only)Shared helpers in
api/mcp/tools/structural.py:_node_summary(flattensencode_node's{id, labels, properties: {...}}and drops theSearchablelabel),_coerce_node_id(int or stringified int; rejects bool),_project_arg(returnsAsyncGraphQuery).Tests
tests/mcp/test_query_tools.py— 13 tests, all green against FalkorDB on 6390. Full MCP suite: 25 passed in 23s.Side fix
Dropped stray
tests/mcp/fixtures/sample_project/venv/that was polluting prefix-search results.Out of scope
T6 (#654,
impact_analysis) — variable-depth Cypher with cycle avoidance, deserves its own PR.Closes #653, #655, #656.