cc-switch

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Jason 6cf49ee032 fix(proxy/gemini): prefer exact tool-call id over normalized-name fallback

The shadow-turn matcher used a three-branch `||` chain (id / full name /
normalized name). When two tools share a suffix (e.g. `server_a:search`
and `server_b:search`), the normalized-name clause could short-circuit
on an earlier turn whose id is actually wrong for the incoming tool_use,
mis-routing replay state (functionCall id / thoughtSignature) for later
tool_result resolution.

Split matching into two layers: when the incoming message carries any
tool_use ids, run id-based lookup first and return on the earliest hit.
Only fall back to full-name / normalized-name matching when the incoming
ids are absent or none of them resolve.

Add two regressions:

- shadow_replay_prefers_exact_id_match_over_normalized_name_collision
  Two shadow turns with colliding normalized names and two assistant
  messages whose ids cross the positional order; asserts each message
  replays the id-correct shadow turn (including thoughtSignature).

- shadow_replay_falls_back_to_name_when_ids_absent
  Shadow turn with no id and incoming tool_use with an empty id;
  asserts the name fallback still populates the replayed part.

6cf49ee032 · 2026-04-16 22:31:49 +08:00

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