feat(examples-chat): Phase 7 — multi-thread support#239
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Both palette toggles (Timeline + Threads) coexist; both panels mount on different sides of the viewport (timeline right, threads left).
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May 12, 2026
…rk (#271) Brings the canonical smoke checklist current with 29 PRs that landed between Phase 7 (#239) and today without checklist updates. Specifically: Updated sections: - chat-debug devtools — replaced bottom-drawer model with floating launcher + status pill + switch (PRs #249, #251) - Control palette — palette v2 (status pill, shadcn-styled panel, PR #244) - Generative UI / A2UI surfaces — single-bubble invariant (PR #255), parent-emits-envelopes architecture (PR #259), wrapped-content + tool_calls coexistence (PR #255), envelope reorder - Server-side wire format — tool_calls preserved on the final AI - Replaced 'Multi-thread' section with 'Sidenav (thread management)' reflecting the permanent semantic <nav> + Active/Archived sections (PR #253) and removing the old palette-toggled drawer model Added sections: - Cmd+K history search — palette open/search/select/close, archived result subtitle, keyboard navigation (PR #253) - Per-row thread actions — kebab menu order per state (active, pinned, archived), rename + pin/unpin + archive/unarchive + delete flows (PRs #258, #260, #267) - Thread titles — first-user-message derivation, idempotent writes, manual rename precedence (PR #242) - Progressive A2UI streaming — per-component fallback transition observable during streaming window (PRs #252, #261, #262, #268, #269) - Inline checkpoint markers — render between messages during multi-step runs (PR #243) - Responsive sidenav — viewport breakpoints, auto-collapse behavior (PR #240) Total: ~58 new check items across 6 new sections, plus rewrites to 5 existing sections. Original 333-line checklist → 391 lines / 237 check items.
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Summary
PalettePersistence(threadskey)ThreadsService(new@Injectable({ providedIn: 'root' })) fetches threads fromPOST /threads/searchand creates new ones viaPOST /threads; silently no-ops when the backend is down<chat-thread-list>switches the agent'sthreadIdsignal and writes to persistence so the chat reloads that thread's server-side historyChatThreadListComponent's built-inshowNewThreadButton+newThreadRequested) callsThreadsService.create()and switches to the new thread, landing in welcome statethreadIdSignalchanges (viaeffect)## Multi-threadsection populated with 10 checksImplementation notes
Threadtype from@ngaf/chatis{ id: string; [key: string]: unknown }— the service mapsthread_id→idand derives atitlefrom metadata or a truncated ID prefixthreadIdSignalchanged fromprivatetoprotected(Angular template binding requirement)ChatThreadListComponentalready shipsshowNewThreadButtoninput andnewThreadRequestedoutput, so no separate button markup was needed in the shell templateTest plan
npx nx run-many -t test,lint,build -p examples-chat-angularpasses (verified: 9/9 tests, lint clean, build clean)🤖 Generated with Claude Code