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90425a4554
`gitnexus group create` wrote `matching.bm25_threshold` and `matching.embedding_threshold` into every generated group.yaml, and no matcher ever read either one. That was not the whole of it — an entire feature surface described a BM25/embedding cascade that does not exist: - `matching.bm25_threshold` / `matching.embedding_threshold` — parsed, persisted, unread - `detect.embedding_fallback` — defaulted and templated, unread - `MatchType` declared `'bm25' | 'embedding'`; both variants unreachable - `SyncOptions.skipEmbeddings` — declared in sync.ts and never read - `gitnexus group sync --skip-embeddings` — accepted, threaded through GroupService, ignored - CLI help in en and zh-CN promised "Exact + BM25 only (no embedding fallback)" - the MCP `group_sync` schema exposed `skipEmbeddings`, described as "Exact + BM25 only (Demo PR: same as default exact path)" `sync.ts` imports exactly `buildProviderIndex`, `runExactMatch` and `runWildcardMatch`, and the printed cascade has one stage. An operator whose links do not match reaches for those thresholds first, and turning either knob changes nothing — config that silently does nothing is how people conclude a feature is broken. Evidence that the cascade should be deleted rather than implemented, from a real backend/frontend pair: of 165 consumer contracts, 149 link exactly and 16 do not. Nine of the sixteen are third-party APIs (Google OAuth, Apple public keys, PostHog, image annotation) with no in-group provider by construction — similarity matching cannot recover them, it can only invent false links. Two are verb mismatches: the frontend calls `POST /links` and `GET /links/check-exists` while the backend declares `GET /links` and eleven other `/links/*` routes but neither of those, so a fuzzy path match would link a POST consumer to a GET provider. The rest are path-extraction artifacts. Roughly none of the sixteen would be correctly recovered, and several would be actively mis-linked. BREAKING CHANGE: `gitnexus group sync --skip-embeddings` and the MCP `group_sync` `skipEmbeddings` parameter are removed. Both were accepted and ignored, so no behavior changes — but a script passing the flag now fails with `unknown option` instead of being silently misled. Existing group.yaml files keep loading: the removed keys are simply no longer part of the schema, and a regression test pins that a legacy config carrying all three still parses. Closes #3006 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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