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Colby McHenry
48cbc21a17
Never re-serve source this session already sent: session-scoped state (CG-17) plus a precise back-reference in place of the bytes (CG-18). Duplicated source drops 6.4% -> 0.74% of the response, at flat cost per call, with more unique source in its place. Bar 4 of CG-20 -- "residual occupancy must drop" -- is NOT met, and the gate records why: CG-18's accepted rule spends reclaimed bytes on files not yet shown rather than banking them, so a design that re-spends every byte cannot lower the byte count. The two requirements were mutually unsatisfiable as written. Bars 1-3 (no extra Reads, no abandonment, no bucket shift) pass across 24 runs on both arms. Kept on that basis, and cheap to reverse: CODEGRAPH_EXPLORE_DEDUP=0 disables it at runtime. Full gate: docs/benchmarks/explore-dedup-ab-cg20.md Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>