fix(mcp): make explore cross-context dedup opt-in - #1624
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Verified on a real TypeScript repo (Chrome MV3 extension, 582 files, TS/JS/Vue/markdown, Windows 11, tree-sitter wasm walker, kernel off). Branch: this PR merged onto current Merges clean onto main. No index change (identical node/edge counts), as expected for an opt-in flag. PR test files: 26/26 pass. Verified alongside #1621 on the same tree; that one has two Windows-only test failures (details there), this one none. Either fixes the subagent "already sent" case for us; this one does it without installing session hooks into user settings. |
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Summary
Fixes #1620.
An MCP connection is not a reliable conversation boundary: hosts may reuse it for subagents or keep it alive across context compaction. Suppressing source by default can therefore point an agent at text that its current context never received.
CODEGRAPH_EXPLORE_DEDUP=1style valuesThis is deliberately limited to the correctness fix and does not add installer hooks or host trust state.
Verification
npm run build:kernelnpm run buildnpm test -- --reporter=dot— 194 files, 3231 passed, 10 skipped