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.artifacts/20260831-105824-plan-code-ui-audit/iterations/09-request.md

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+# Iteration 09 Request
+
+- Task: 20260831-105824-plan-code-ui-audit
+- Requested by: build from `iterations/08-review.md`
+- Owner: coder
+- Status: changes-requested
+
+## Required Correction
+
+1. Prevent old-room callbacks from repopulating ephemeral fields during terminal teardown:
+   - Gate `participantDidConnect` and all connection-state mutations on `!isTearingDown` plus explicit active lifecycle states.
+   - Ignore reconnecting/connected/disconnected state changes from intentional teardown before mutating published fields.
+   - Perform a final shared ephemeral-field reset immediately after `teardownRoom()` and immediately before publishing `.failed(message)`, so any callback delivered during the await is erased.
+   - Reuse one reset helper from explicit disconnect/start/failure where semantically appropriate; preserve durable settings, transcript history, and task history.
+   - Add a focused pure predicate/reset test seam proving callbacks are rejected for `.tearingDown`/`.failed` and accepted only for intended active states.
+2. Run the complete XcodeBuildMCP tests, separate simulator build, suite/source count, and `git diff --check`.
+3. Write `iterations/09-implementation.md`, update implementation.md/manifest, and do not self-approve.
+
+## Scope
+
+- No UI redesign implementation, reference-project changes, commits, or changes to device/server qualification language.