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fix(skill): complete induced subgraph in query fallback - #4316

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nothariharan:fix/4314-query-fallback-induced-edges
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nothariharan wants to merge 1 commit into
Graphify-Labs:v8from
nothariharan:fix/4314-query-fallback-induced-edges

fix(skill): complete induced subgraph in query fallback (#4314)

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Graphify Labs / Graphify succeeded Oct 11, 2026 in 1m 28s

Graphify — no issues found (static checks)

No issues found by static checks — no coupling regressions or blocking issues in the code graph. That is not the same as safe to merge: see what was not checked.

Not checked: tests were not run; no formal proof of the changed code.

Details

Graphify reviewed this change.

No issues found by static checks — no coupling regressions or blocking issues in the code graph. That is not the same as safe to merge: see what was not checked.

Not checked: tests were not run; no formal proof of the changed code.


Graphify review — findings

Fixes the query fallback's subgraph output so it includes every edge between visited nodes. Previously it emitted only the BFS/DFS traversal-tree edges, which dropped seed-to-seed links, triangle chords and cross-links (#4314). After traversal, a completion pass scans edges incident to the subgraph and appends any missing ones, skipping self-loops, deduping (direction-aware on directed graphs) and keeping cost proportional to the subgraph size. The fix ships in every generated skill variant and their skillgen fragments/expected outputs, with new tests covering directed-edge direction and DFS cross-links.

Review partial — this diff was larger than one review pass covers, so later files were not reviewed; some findings may be missing.

Analysis details — impact, health, verification

Impact & health

Graphify review

Impact — 576 functions depend on the 505 functions this change touches.

Health — grade A; 5 existing hotspot(s) in the area this change touches (pre-existing, not introduced here):

  • render() — 13 callers, 5 callees (high)
  • audit_coverage() — 8 callers, 6 callees (high)
  • main() — 3 callers, 11 callees (medium)
  • monolith_roundtrip() — 3 callers, 5 callees (medium)
  • test_audit_catches_a_dropped_non_allowlisted_heading() — 0 callers, 6 callees (medium)

Verification — 576 functions in the blast radius were not formally verified this run (proofs are advisory here).

Gate & verification

graphify gate

PASS — objectively clean (no health regressions, tests not run — proofs not run this pass (advisory)). Grounded, not self-assessed.

Advisory (not blocking):

  • verification_scope: 576 function(s) in the blast radius were not formally verified this run

Test selection

Test selection

368 of 368 test file(s) selected (100%) via static blast radius.

Escalated to a full run for safety — the selection is not trustworthy on its own (see below). CI should run the whole suite.

  • tests/test_affected_cli.py — full-run-safety
  • tests/test_affected_defines.py — full-run-safety
  • tests/test_affected_member_seed.py — full-run-safety
  • tests/test_agents_platform.py — full-run-safety
  • tests/test_analyze.py — full-run-safety
  • tests/test_anthropic_custom_endpoint.py — full-run-safety
  • tests/test_antigravity_install.py — full-run-safety
  • tests/test_apm_fallback_version.py — full-run-safety
  • tests/test_architecture_doc.py — full-run-safety
  • tests/test_astro_extraction.py — full-run-safety
  • tests/test_astro_import_ids.py — full-run-safety
  • tests/test_atomic_canvas_export.py — full-run-safety
  • tests/test_atomic_version_stamp.py — full-run-safety
  • tests/test_atomic_writes.py — full-run-safety
  • tests/test_backend_env_isolation.py — full-run-safety
  • tests/test_backend_extras.py — full-run-safety
  • tests/test_benchmark.py — full-run-safety
  • tests/test_benchmark_raw_graph.py — full-run-safety
  • tests/test_blade_extractor.py — full-run-safety
  • tests/test_build.py — full-run-safety
  • tests/test_build_located_semantic_identity.py — full-run-safety
  • tests/test_build_merge_dedup_scope.py — full-run-safety
  • tests/test_build_merge_hyperedges_and_prune.py — full-run-safety
  • tests/test_build_merge_shrink_guard.py — full-run-safety
  • tests/test_builtin_global_type_refs.py — full-run-safety
  • tests/test_cache.py — full-run-safety
  • tests/test_cache_stale_import_target.py — full-run-safety
  • tests/test_callflow_html.py — full-run-safety
  • tests/test_cargo_introspect.py — full-run-safety
  • tests/test_cargo_missing_manifest.py — full-run-safety
  • tests/test_carried_hyperedge_remap.py — full-run-safety
  • tests/test_case_sensitive_resolution.py — full-run-safety
  • tests/test_charmap_encoding.py — full-run-safety
  • tests/test_chunking.py — full-run-safety
  • tests/test_cjs_module_extension.py — full-run-safety
  • tests/test_claude_cli_backend.py — full-run-safety
  • tests/test_claude_md.py — full-run-safety
  • tests/test_cli_broken_pipe.py — full-run-safety
  • tests/test_cli_export.py — full-run-safety
  • tests/test_cli_help.py — full-run-safety
  • tests/test_cloud_cta.py — full-run-safety
  • tests/test_cluster.py — full-run-safety
  • tests/test_cluster_ambiguous_scale.py — full-run-safety
  • tests/test_cluster_exclude_hubs.py — full-run-safety
  • tests/test_cobol_extractor.py — full-run-safety
  • tests/test_codebuddy.py — full-run-safety
  • tests/test_community_hub_labels.py — full-run-safety
  • tests/test_community_labels_skill.py — full-run-safety
  • tests/test_confidence.py — full-run-safety
  • tests/test_corrupt_graph_json.py — full-run-safety
  • … and 318 more

non-code file(s) changed (graphify/skill-aider.md, graphify/skill-devin.md, graphify/skills/agents/references/query.md, graphify/skills/amp/references/query.md, graphify/skills/claude/references/query.md …) → running the full suite for safety (a code graph can't see config/fixture/data deps)

changed code file(s) with no mapped test (graphify/skill-aider.md, graphify/skill-devin.md, graphify/skills/agents/references/query.md, graphify/skills/amp/references/query.md, graphify/skills/claude/references/query.md …) — a coverage gap or a missing link — running the full suite rather than only the selected tests

Selection is safe under the controlled-regression assumption; always-run tests + a periodic full run are the backstops. Advisory — it never changes the check verdict.

Docs that may be stale (advisory)