Collapse teacher introductions after three operation replies

.project-docs/30-worklog/tasks/20260928-merge-reply-cleanup-eb8d39b3.md

@@ -141,3 +141,20 @@
 - Actual live DOM now has 2 delivered teacher tabs and 2 matching introduction cards (architecture teacher and Alice); screenshot inspected and cropped without activating the window. Window remains visible/unfocused. Focus monitor observed Codex only, and temporary inspector was closed. No cloud publication, live model question, formal install/restart or remote push; source change is committed locally.
 - Required documentation structure passes; inherited drift check still reports only the same five imported task records relative to the original merge base. No foreign task record or canonical document edited. Retain this checkout because the trial runs its build.
 - Promotion candidate: canonical classroom interaction/current-state should replace catalog-wide single welcome with project-scoped per-teacher introductory receipts and independent group presentation. Evidence: user's approved design, source/tests and live two-teacher capture. This supersedes the older shared welcome-dismissal UX for delivered catalogs only; legacy/check-in semantics remain compatible. No additional product decision is needed; canonical promotion requires a separate integration gate.
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+## Follow-up: Collapse Introductions After Three Operation Rounds
+
+- User requests introductions immediately on project entry, left visible when untouched during the first three operation-Agent rounds, then automatically collapsed; hover introductions remain available. Continue the same owned UI/trial task without subagents or foreground activation.
+- Project Context Loaded: official start/status confirm task ID, feature mode, exact worktree/branch and base above; own record and active peer scopes read, unchanged entry/positioning/teacher/runtime context reused. Formal-app/cloud-policy and unfinished language-skill peers have no overlap with this presentation-only change. Gate Passed.
+- Plan: observe successful operation prompt completions from the existing conversation store, count each run once after that teacher's introduction starts, persist at most three receipts per account/project/teacher, and dismiss only introduction cards after the third round. Historical snapshots, tools/retries, failures/aborts, teacher conversations and other projects must not advance the count. Preserve individual dismissal and give newly delivered teachers their own window; do not mutate runtime, history, unread suggestions, drafts or model context. Add focused state/UI and Electron fixture regressions, run required checks/build, and safely refresh the existing temporary Renderer. No cloud publication, formal-app update or remote push.
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+### Three-Round Introduction Outcome And Verification
+
+- Introduction cards appear on entry as before and now dismiss after the third successful operation-Agent prompt completion that started after their introduction. The observer reads the existing conversation store across operation chats in the active project, deduplicates by conversation/run identity, and persists only the introduction start time and up to three run receipts per account/project/teacher. Refresh resumes progress; newly delivered teachers receive their own window. Tools/retries, teacher messages, failed/aborted runs, manual compaction, old history and other projects do not count. No runtime, submission, history, prompt, cloud or billing changes.
+- Automatic dismissal uses only the per-teacher introduction receipt, preserving unread check-ins, ordinary teacher chat, hover descriptions and existing manual dismissal. Returning to a project does not reintroduce previously dismissed teachers. README reflects the new behavior.
+- Five new real-store/UI regressions cover the exact third-completion boundary, duplicate snapshots, streaming/retry/failure/abort/history/compaction exclusions, reload and source switches, project/account/new-teacher isolation, teacher conversations and hover/unread preservation. Focused 3 suites / 112 tests pass. Full test command passes 263 suites / 2651 tests with 3 unchanged skips, followed by the pressure stage 1/1. Typecheck, full lint (0 errors / 8 unchanged warnings), build:vite and whitespace checks pass. All 13 headless preview/layout cases pass; Electron fixture includes the three-round/hover/reload regression and lists 20 cases, but native foreground E2E was not launched.
+- Refreshed the existing temporary Renderer to `index-C18pxj_y.js` without restarting Main PID 62668 or taking focus. Backups and evidence: trial `teacher-introduction-rounds-20260929/`. Before reload there were no active workers/stop controls or nonempty inputs. Verified the loaded new asset, both delivered teacher cards, unchanged authenticated identity/route and all 13 saved teacher drafts. Screenshot reviewed; one initial background capture failed transiently with UnknownVizError, the next read/capture succeeded. No live three-turn model requests were made; counting behavior is verified by the regressions.
+- NSWorkspace monitor observed Codex only; trial remains visible/unfocused. Formal app and cloud configuration untouched, no remote push or subagent. Required document structure passes; drift remains the same five unchanged imported source task records relative to the original merge base. Retain this checkout for the live trial.
+- Promotion candidate: per-teacher introduction receipts now include a three-successful-operation-round window, persistent over page refresh and independent of teacher discussion. No canonical documents edited in this feature task.