docs: context-grep extension A/B test analysis and post-mortem#26
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Summary
A/B test comparing agent efficiency with and without the context-grep extension across 5 sessions implementing issue #21 features.
Key findings
links --offset: providestotal+capped(vs blind pagination)writeFileSyncfix (vs "not my bug" test)text --after: CLI-local withmarkerFoundfeedback (vs ADR-017 violating extension-level)Decision
Extension removed. Let the model explore naturally — the extra turns are the mechanism for discovering things the agent didn't know to look for.
Files
docs/internal/journal/2026-06-22-context-grep-extension-ab-test.md— full analysisdocs/internal/plans/phases/09-tooling.md— post-mortem reference addedCloses no issue (internal documentation).