- fix(perf): use messagesRef.current in loadMoreMessages to avoid
recreating callback on every streamed token; messagesRef is already
kept in sync on every render so no useEffect needed — removes
`messages` from useCallback deps
- fix(api): reject invalid order query param with 400 instead of
silently ignoring; valid values are 'asc' and 'desc'
Tests:
- useChat: loadMoreMessages identity is stable when messages array changes
- chat-routes: GET /messages?order=invalid returns 400
- Remove fetchAllMessagesInChat/fetchAllMessages helpers
- Keep limit:50 for initial load in useChat and useQuickChat
- Add IntersectionObserver sentinel at top of ChatView message list to
trigger loadMoreMessages() when user scrolls to the top
- Keep stale-session guards (activeSessionRef checks) from original PR
- Tests: revert assertions back to { limit: 50 }
Add stale-session check to the isPaginationRequest branch in loadMessages.
If the user switches sessions while pagination is in progress, the old
session's messages and hasMoreMessages state should not overwrite the
newly active session's state.
Both useChat (full ChatView) and useQuickChat (FAB) loaded only the first 50
messages on open and never paginated further. In useChat, loadMoreMessages
exists but ChatView never calls it — dead code. In useQuickChat, there was
no pagination at all.
Fix: add fetchAllMessagesInChat / fetchAllMessages helpers (paginate through
the API 200-msg cap), replace all limit:50 initial-load call sites, and
add stale-session guards via activeSessionRef before calling setMessages.
hasMoreMessages is set to false after a full initial load.
Forward-pagination path in useChat (isPaginationRequest=true) is preserved
for backward compat.
FN-5389 adds dashboard resume event instrumentation: a `resumeInstrumentation` utility captures SSE resume signals, wired through `useChat`, `useChatRooms`, and `useTasks` hooks, with remount markers in `Board` and `ChatView`; diagnostics routes expose resume events for observability, documented in
Fusion-Task-Id: FN-5389
This merge introduces SWR-style caching across the dashboard to eliminate redundant fetches for models, agents, and skills, significantly refactoring ChatView.tsx (reduced by ~140 lines) by offloading cache coordination to three new dedicated hooks (`useAgentsMapCache`, `useDiscoveredSkillsCache`, `
Fusion-Task-Id: FN-5202
Fixes chat hooks to flush queued messages when recovery completes, preventing stale messages from lingering in useChat and useQuickChat; includes tests for both hooks.
Fusion-Task-Id: FN-4381
Implements inline chat failure rendering in the ChatView with interactive reference affordances, proper attribution preservation in failure bubbles, and aligned error typing across the chat stream pipeline, with corresponding tests and documentation updates.
Fusion-Task-Id: FN-4054
Removed queued warning toasts from chat queueing flows in `useChat` and `useQuickChat` hooks, with corresponding test coverage for the queueing behavior without the toast.
Fusion-Task-Id: FN-4056
Implements Step 1 of reattaching a regular chat stream when the browser tab resumes from a hidden/suspended state, with tests covering the recovery path and documentation added to the dashboard guide.
Fusion-Task-Id: FN-3946
- Persist in-flight chat generation snapshots in core chat store types and DB plumbing
- Restore durable recovery state through dashboard chat manager and chat hooks on reload
- Add coverage for chat store persistence and chat/useQuickChat recovery behavior
- Document durable chat recovery architecture and dashboard behavior
Fusion-Task-Id: FN-3927
- Add visibility suspension hook to detect tab-hidden periods during chat loading
- Update useChat and useQuickChat to suppress load-failed toasts triggered by tab suspension resumes
- Expand hook test coverage for suspension timing and toast suppression behavior
- Add plugin authoring documentation updates and include FN-3838 changeset
Fusion-Task-Id: FN-3838
Merged branch adds FN-3759 queue flush ref fixes for `useChat` and `useQuickChat` hooks (with expanded regression test coverage), extracts the roadmap UI into a standalone plugin with schema hook and store bootstrap, ships FN-3281 review revisions with dashboard/plugin integration updates, and resol
Fusion-Task-Id: FN-3759
This merge splits the monolithic TaskDetailModal test file into six focused test suites (rendering, attachments/tabs, definition/actions, inline-editing/integrations, models/progress/workflow, responsive/dependencies), adds a changeset for the test isolation baseline, fixes chat SSE optimistic echo
Fusion-Task-Id: FN-3609
Backend
- chat.ts now routes both regular chat and QuickChat through
createResolvedAgentSession instead of branching to createFnAgent for
the no-runtime-hint case. This removes the divergent path where
pi-ai's cleanupSessionResources(sessionId) could tear down resources
the next generation depends on.
- sendMessage's finally only disposes the agent if it still owns the
activeGenerations slot. A newer generation that has pre-empted us
cleans up its own agent in its own finally — disposing here would
yank the underlying CLI process out from under it.
- __setCreateFnAgent test helper now mirrors its mock into the
createResolvedAgentSession slot so existing test setups still work
after the unification.
Frontend
- Extract createChatStreamHandlers (RAF coalescing, accumulators,
tool-call dedup, fallback handling) — useChat and useQuickChat were
duplicating ~85 LOC each. Both now compose the shared factory.
- Move shared chat types into chatTypes.ts. The hooks re-export them
for backward compatibility with existing consumers.
- Removed per-message Markdown/plain-text eye toggles. A single
thread-level toggle in the chat header now flips every assistant
bubble (including the streaming one) between rendered Markdown and
plain text.
- Model-only chats hide the per-message agent identity row entirely;
the model name is already in the thread header.
Tests
- Updated ChatView tests to reflect the new render-toggle contract
(single header toggle drives all bubbles) and the model-only avatar
suppression.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This merge adds done-payload snapshot handling across the chat system (FN-3430), normalizing how final assistant messages are preserved and consumed in the dashboard hooks, plus it normalizes dashboard mailbox and user identity for inter-agent messaging (FN-3484) and introduces plugin workflow step
Fusion-Task-Id: FN-3430
Merges FN-3336 to recover chat streaming state on page reload — adds `isGenerating()` and `getGeneratingSessionIds()` to `ChatManager`, enriches the session API to surface active-streaming sessions, and makes `useChat` and `useQuickChat` hooks restore the `isGenerating` flag when loading existing se
Fusion-Task-Id: FN-3336
The merge adds a `/clear` command to both the Chat view and Quick Chat that clears transient chat state on session resets, with tests for all new hooks and components. It also persists session banner dismissals via a new `useSessionBannerPref` hook, adds a hide-banner setting, and preserves planning
Fusion-Task-Id: FN-3062
- Add attachment-first chat compose flow with paperclip picker, drag-and-drop, and paste support in ChatView input
- Render pending attachment preview chips with per-file remove actions and drag-over visual affordance
- Display sent message attachments with image/file presentation and accessible focus/interaction styling
- Update ChatView tests and icon mocks to cover attachment-only sends, file selection, and preview behavior
Fusion-Task-Id: FN-2911
- Emit tool_start/tool_end SSE events from dashboard chat backend and parse them in streaming client helpers
- Track in-flight and completed tool calls in useChat/useQuickChat to preserve tool output summaries alongside assistant messages
- Render collapsed tool call preview blocks in ChatView and QuickChatFAB with dedicated tokenized styles for compact output summaries
- Expand frontend and backend test coverage for SSE tool events, hook state transitions, and collapsed preview rendering behavior
- Add a changeset for @gsxdsm/fusion documenting the new tool-call display behavior
- Emit chat:session:updated from ChatStore when message deletion mutates a session and cover deleteMessage false returns
- Pass ChatStore into SSE setup and forward chat session update events to connected clients
- Update useChat to consume SSE updates in real time with safer EnrichedChatSession typing
- Add core and dashboard tests for chat-store emissions, SSE forwarding, route wiring, and hook behavior
- Make useChat and useQuickChat sendMessage synchronous and update consumers to call it without awaiting
- Allow ChatView and QuickChatFAB inputs to remain editable while responses stream
- Keep quick chat send disabled during active streaming to prevent concurrent sends
- Add hook and component tests for synchronous sendMessage and non-blocking input behavior
- Remove unnecessary .reverse() calls when setting messages in useChat.
- Keep paginated prepend behavior intact by using backend chronological ordering directly.
- Update useChat tests to provide message fixtures in oldest-first order.
- Add lastMessagePreview field to ChatSession to show message previews in session list
- Restore active session state on component remount via stored lastSessionId
- Add chat routes for session management (create, list, read, update/delete)
- Add tests for useChat hook, chat store, and chat routes
- Remove unused serveCommand assignment in serve.ts command
- Add tryRelinkOrphanedFeature() to find and link matching tasks
- Normalize titles (trim, lowercase, collapse whitespace) for matching
- Only relink when exactly one task matches (ambiguous = no action)
- Sync feature status from task state on successful relink
- Normalize to 'defined' when no safe relink exists
- Add 7 tests for orphaned feature relink scenarios
- All 57 tests passing
- Add ChatView component with sidebar navigation and message thread layout
- Add useChat hook with SSE streaming state management for real-time updates
- Add chat API functions for sessions and messages (create, list, send, stream)
- Add mobile-responsive CSS styles for chat interface
- Add tests for useChat hook and ChatView component
- Integrate chat into task view and navigation (Header, MobileNavBar)
