Files
graphify/tests
Yyunozor 4ace95182b fix: preserve calls edge direction in graphify query output
`graphify query` builds an undirected nx.Graph (so BFS/DFS can explore
both callers and callees of the seed node), but its text renderer
assumed the BFS/DFS visit order (u, v) was always the edge's
(source, target). On an undirected graph that assumption only holds
when the seed happens to be the caller: seeding on the callee makes
BFS/DFS visit the callee first, so a `caller --calls--> callee` edge
was rendered backwards as `callee --calls--> caller`. graph.json's
own source/target fields stay correct on disk; only the query
rendering was wrong.

`graphify path` and `graphify explain` don't have this problem
because they force directed=True on load (#849, #853), and the MCP
query_graph tool's _load_graph() does the same. Doing that for CLI
`query` too was tried and reverted: forcing a DiGraph makes
G.neighbors() return successors only, so a query seeded on a
leaf/sink node (no outgoing edges) found zero neighbors instead of
its callers — a recall regression, not just a display fix, and it
would make the CLI and MCP query tools diverge in what they discover
even though they'd render direction identically.

Fix instead mirrors the _src/_tgt pattern graphify/build.py already
uses for the same underlying problem (undirected storage loses
direction): the CLI now stashes each link's true source/target on
its edge data as _src/_tgt before constructing the (still undirected)
graph, and _subgraph_to_text renders EDGE lines from _src/_tgt when
present, falling back to (u, v) otherwise. Traversal itself is
unchanged, so recall is unaffected — verified against the unpatched
CLI, the node counts returned for the same seeds are identical before
and after this fix, only the printed edge direction changes.

Adds two regression tests in tests/test_query_cli.py seeding the same
`calls` edge from both endpoints; the callee-seeded case fails on the
prior code with the exact backwards-edge symptom above.
2026-07-21 21:45:53 +01:00
..