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Colby MchenryandClaude Opus 4.8
2f6316500d
Value-reference edges (same-file `references` edges from a reader to the file-scope const/var it reads) shipped behind CODEGRAPH_VALUE_REFS pending an agent A/B. The A/B is in: on excalidraw the edges are correct and precise (node count unchanged) and they transform the impact/blast-radius API — `impact` on a const consumed by 103 readers goes from 1 affected symbol to the full radius. That blast-radius API is what `codegraph impact` and CodeGraph Pro's verdict engine consume, so the win is impact correctness; the agent path showed no regression. Flip the default on; CODEGRAPH_VALUE_REFS=0 disables. Also close the one precision gap the A/B surfaced: a bundled/Emscripten `const Module` re-declared as an inner `var Module` / param produced false positives (nested readers resolve to the inner binding). isGeneratedFile() is path-only and can't catch content-minified bundles, so prune SHADOWED targets at the syntax level — drop any value-ref target whose name is bound by more than one `variable_declarator` in the file. On excalidraw this removes the 23 false positives while preserving every real reader (impact unchanged at 170). Adds regression coverage (there was none): same-file readers are edged, they surface in the impact radius, shadowed consts are NOT edged, and CODEGRAPH_VALUE_REFS=0 emits nothing. Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>