Improve chat session switching and history pagination, with most of the aggressive limits scoped to the VS Code webview where the freezes were observed.
Session history loading and pagination:
- Reduce the VS Code message page size to 30 records so switching sessions does not immediately hydrate large histories into the webview.
- Keep manual Load older messages in VS Code fixed at 30 records per request instead of growing the request size over time.
- Add a bounded VS Code initial-tail expansion path from 30 to 50, 80, and 120 records only when the initial page has no user-message turn boundary, preventing large final turns from rendering as an empty chat.
- Lower the normal web message page size from 200 to 150 for a mild shared optimization without adopting the aggressive VS Code limits.
- Make session pagination metadata reactive per session so ChatContainer receives cursor updates from materialization and reconnect paths without requiring a switch away and back.
- Write pagination metadata before publishing newly materialized messages so the first render sees the correct has-more state.
- Store cursor information from direct materialization and reconnect message fetches in the shared session prefetch metadata cache.
VS Code cache and memory pressure reductions:
- Use a shared per-directory session recency map so cache eviction is based on app-level recency instead of whichever useSync instance happened to run.
- Limit VS Code warm session cache retention to 4 sessions and evict heavy inactive message caches after switching away from a large session.
- Disable sidebar session prefetch in VS Code because warming extra sessions was increasing webview memory and GC pressure during navigation.
- Remove dropdown background message prefetch so opening the switcher does not start additional session materialization work.
- Drop cached session-message-record snapshots when evicting session data so stale derived records do not remain after the raw session cache is cleared.
- Add bounded LRU caching for session message record snapshots, with much smaller VS Code limits and a VS Code cap that avoids caching snapshots above 30 messages.
- Bound the turn-window model cache in VS Code and avoid caching turn models for sessions above the VS Code message-page size.
Chat render-path reductions:
- Reuse ChatContainer's already-materialized message records in plan detection instead of adding a second active-session message subscription.
- Add a no-op guard when marking session plan availability so repeated detections do not create new Map references and fan out renders.
- Add no-op guards for session switcher and dropdown open state updates to avoid unnecessary store updates and renders.
- Convert several session-specific hooks to useSyncExternalStore with empty-session no-subscribe behavior so empty IDs do not subscribe to broad store updates.
- Remount the chat viewport when the current session changes, isolating per-session viewport and list state.
- Change the virtualized message-list fallback to render only a tail window when the virtualizer has not produced rows yet, instead of rendering an entire large history.
VS Code layout and header improvements:
- Remove the broad useSessions subscription from the VS Code layout header path and subscribe only to the active session title and initial-session existence.
- Unmount the compact VS Code session sidebar when the user is in chat view instead of keeping the hidden session list mounted and subscribed.
- Compute the latest assistant model and latest context-token usage in a single reverse scan of current-session messages instead of scanning the same list twice.
- Remove switcher git-status warmup work so the switcher reads already-loaded branch labels without starting extra background git status requests.
Markdown and file-reference safeguards:
- Skip expensive syntax highlighting for very large code blocks, with a 200-line cap in VS Code and a softer 1200-line cap in web.
- Add an LRU cap to file-reference stat lookups so the cache cannot grow without bound across many rendered messages.
- Limit the number of file references annotated per render to 40 in VS Code and 200 in web to prevent large assistant outputs from spawning too many stat checks.
- Clear file-link annotations when file-reference mode is disabled so stale attributes and handlers do not remain on previously annotated nodes.
Assistant-message action and preview reductions:
- Skip preview URL scanning on VS Code, mobile, and mini-chat surfaces so assistant text and tool output are not scanned where the preview action is unavailable.
- Skip Save-as-Plan project lookup on VS Code, mini-chat, and mobile surfaces.
- Hide Save-as-Plan and Start MultiRun assistant-message actions on VS Code, mini-chat, and mobile surfaces.
- Resolve the current session directory on demand for assistant actions instead of subscribing each assistant message to the full session list.
Tool and task rendering optimizations:
- Prefer finalized task metadata summaries without fetching child-session messages when the summary is already present.
- Avoid polling or final-fetching task child sessions once a final metadata summary is available.
- Use VS Code-specific task child fetch limits of 30 records for initial, active, and idle fetches.
- Parse diff stats by scanning patch text line-by-line instead of splitting large patches into arrays.
- Count write-tool lines by scanning content instead of allocating a split array for large files.
- Avoid trimming large patch strings just to test whether they contain content.
- Memoize diff and write statistics so unchanged tool parts do not recalculate them on every render.
VS Code bridge improvements:
- Return JSON and text proxy responses through the VS Code bridge as bodyText instead of base64 so the webview avoids synchronous base64 decoding for common API responses.
- Keep binary responses on the base64 path while making bodyBase64 optional in the bridge contract.
- Strip content-length, content-encoding, and transfer-encoding headers from proxied responses because the bridge reconstructs the Response body.
Validation:
- bun run type-check
- bun run lint
- bun run vscode:build
Use the same spring height animation for thinking and tool details
Reduce mismatch between auto-collapse and manual collapse behavior
Keep existing expanded state behavior unchanged
Add smooth expand and collapse transitions to tool details
Match the existing thinking block animation style
Keep existing default expanded states unchanged
Adds animated reveals for file path tool descriptions
Keeps sorted mode tool animations working without extra chat gaps
Preserves file icons, truncation, and click behavior
Adds read-only embedded chat mode without hiding permission prompts
Opens subagent sessions in the context panel instead of replacing the main chat
Fixes context panel message loading for embedded sessions
Replace @remixicon/react with a shared Icon component that renders
via <use href> references to a single hidden SVG sprite. This reduces
DOM node count by replacing inline SVGs with lightweight references.
- Create Icon component with sprite injection (packages/ui/src/components/icon/)
- Migrate all 164 files from @remixicon/react to Icon component
- Auto-generate sprite data from remixicon bundle (scripts/generate-icon-sprite.mjs)
- Add bun run icons:generate to package.json
- Move @remixicon/react to devDependencies
- Add icon usage instructions to theme-system skill
Virtualize message timeline at 5+ turns. Stabilize virtualizer keys,
add prepend-aware scroll compensation for "Load older", and defer
expanded tool bodies by one animation frame. Tighten initial turn
window to 7 turns for faster session open.
The previous system layered three hooks (useScrollEngine, useChatScrollManager,
useChatTimelineController) with overlapping responsibilities, four parallel
ResizeObservers/MutationObservers, and six entry points to "scroll to bottom"
(force-flag combinations, persistent follow loops, materialization recovery).
This produced bugs where users could not break free of auto-follow during
streaming: scrollbar drag, keyboard scrolling and find-in-page were not
detected as user intent, and observers kept restarting the follow loop on
every DOM mutation.
The new architecture replaces the two low-level hooks with a single
useChatAutoFollow that owns scroll behaviour end to end:
- One state: 'following' or 'released'. No follow modes, no pin flags,
no marker pixels.
- One scroll writer: a lerp loop that runs only while the session is
streaming and state is 'following'. Idle sessions never write scrollTop
programmatically.
- One user-intent detector: wheel up, touch drag down, keyboard
(PageUp / Home / ArrowUp), pointerdown on the OverlayScrollbar thumb,
and explicit releaseAutoFollow() calls all flip the state to 'released'.
- A 1.2s grace period after explicit release: re-pin will not auto-engage
inside this window, so a small wheel up cannot snap the user back even
while they remain near the bottom spacer.
- Re-pin and the scroll-to-bottom button share the same threshold: the
height of the empty bottom spacer (10vh on desktop, 40px on mobile).
Released users see the button only after they have scrolled past the
spacer that already exists at the end of the chat.
- Save/restore of scroll position uses ratio mapping, debounced at 150ms
on user-driven scroll events; programmatic writes are masked via a short
window so they never persist as user positions.
- Container reattachment is detected via a useLayoutEffect probe over
scrollRef.current. Listeners and observers re-bind when ChatViewport
mounts after hydration or after the first message promotes a draft
session into a real chat.
- A pending-restore queue replays restoreSnapshot once the scroll
container appears, fixing the case where a hydrating session landed at
the top instead of the bottom.
Removed: useScrollEngine.ts, useChatScrollManager.ts, the persistent
follow loop with its own ResizeObserver+MutationObserver pair, the
materialization-recovery .finally resume that yanked idle users to the
bottom on transient sync gaps, and the openchamber:session-reselected
event (re-select still works through the existing onSessionSelected
callback). The openchamber:chat-force-scroll-bottom event remains for
synthetic-message paths like git-message generation.
Net change: ~1300 lines removed, two hooks replaced with one, one
observer pair instead of four.
* fix: exclude file content from reverted prompt text
Revert and fork now restore only the user's original prompt, not server-injected file content
Uses existing isSyntheticPart helper for type-safe filtering
* fix: keep scrollbar visible when hovering over thumb
* fix: prevent ESC abort from triggering when terminal is focused
* fix: pass directory to permission/question reply calls so approvals actually resolve
* fix: default model selection not responding after Base UI migration
* fix: prevent modal content from shifting and clipping footer buttons
* fix: improve session switching performance and add sub-agent export with prompt collapse
Defer viewport anchor saving to eliminate ~800ms UI freeze when switching sessions
Add export dialog to include sub-agent tasks recursively in markdown export
Add collapse chevron button for expanded user prompts in sticky header
* fix: resolve sidebar scroll and TDZ crash in session sidebar
* perf: reduce CPU overhead and re-renders across chat, layout, and settings
* fix: position collapse button at top of message and prevent ESC abort in terminal
* fix: position collapse button at top and add padding only when expanded
* refactor: extract shared PATH utilities and mobile keyboard hook
* refactor: import shared path-utils in electron, use module-level style constants
- Electron now imports pathLooksUserConfigured/mergePathValues from
shared path-utils.js instead of inline duplication
- ToolPart collapsedCustomStyle moved from useMemo([]) to module const
* fix: resolve remaining merge conflicts and type errors
- Remove duplicate variable declarations in SessionNodeItem
- Remove orphaned export callback body from conflict resolution
- Fix HelpDialog description -> descriptionKey (i18n rename)
* fix: resolve type-check and lint errors in session-actions.test.ts
- Added missing bun:test type declarations (beforeEach, mock, mock.module)
- Removed unused State import
- Replaced 'as any' casts with proper OpencodeClient and ChildStoreManager types
- Added eslint-disable for unused _ parameter in mock function
* fix PR 1028 export and PATH edge cases
* fix startup retry exhaustion state
* remove opencode package lock change
* fix sub-session rename cancellation
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
* fix(pipeline): distinguish transport switch from real disconnect
WS_FALLBACK errors (e.g. ready timeout → SSE fallback) are transport
switches, not disconnections. No events are lost because lastEventId is
preserved across the switch.
Previously, every WS timeout triggered onDisconnect → onReconnect with a
full resyncDirectoryAfterReconnect, which:
- Missed idle parent sessions in candidate selection (root cause 1)
- Could overwrite in-flight SSE state with stale fetch data (root cause 4)
- Caused isConnected to flash false→true
Now: WS_FALLBACK fires onTransportSwitch (sets isConnected only).
Real disconnections (heartbeat timeout, network error) still fire the
full onDisconnect → onReconnect → resync cycle.
* fix(sync): relationship-aware reconnect with merge-not-replace
Two changes to resyncDirectoryAfterReconnect:
1. Candidate selection now also includes parent sessions of any child
sessions in the directory. Previously, if a child completed during
the disconnect gap (busy→idle), neither child nor parent was selected
because both appeared idle. The parent's task tool part would remain
permanently stale.
2. Parent resync merges parts instead of replacing. Previously, the
resync deleted parts for messages not in the fetch snapshot, which
could erase parts delivered by SSE events that arrived between the
fetch and the setState. Now only parts for messages in the snapshot
are overwritten; everything else is preserved.
* fix(sync): demand-load child session messages on access
Bootstrap only loads session metadata — messages are populated
exclusively by SSE events. When a user navigates to an old session
that spawned subagents, child session messages were never in the store.
Add useEnsureSessionMessages hook that detects this gap (session exists
in state.session but state.message[sessionID] is absent) and triggers a
background API fetch to load messages and parts.
ToolPart already calls useSessionMessageRecords(taskSessionId) which
returns empty when not loaded. Now it also calls useEnsureSessionMessages
to populate the store on first access.
* fix(sync): unmount-safe parent resync when child session goes idle
When a child session transitions to idle (completes), the sync layer
now schedules a targeted parts repair for the parent session's task
tool part. Previously this only happened when the ToolPart component
was mounted and had observed the child being active (taskChildSeenActive).
This covers:
- User navigated away while child was running
- App restarted with active subagent sessions
- SSE reconnect where child completed during disconnect
Uses the existing repairSessionParts mechanism with its 5s cooldown
to avoid redundant fetches.
* fix: type-check fixes for sync-layer parent resync
Fix TypeScript errors in Fix 5 implementation:
- Convert currentSessionId from null to undefined for resolveFallbackTaskSessionId
- Add default empty string for dir parameter in getScopedSdkClient
- Use explicit sessionID parameter for scopedClient.session.messages
All type-checks now pass.
* fix(sync): address PR review feedback on deduplication
- Use enqueuePartsRepair for session.idle parent resync instead of
direct repairSessionParts call. enqueuePartsRepair already has a 5s
cooldown to prevent redundant parallel API calls when multiple child
sessions go idle concurrently.
- Move useEnsureSessionMessages loading guard from component-scoped
React.useRef to a module-level Set keyed by directory:sessionID.
Prevents parallel fetches when multiple ToolPart instances mount
for the same child session.
* fix(sync): add missing semicolon on useEnsureSessionMessages call
Address Greptile P2 review comment on ToolPart.tsx:1931.
* fix(task): prevent subagent silent failures in session resolution and polling lifecycle
Two failure points fixed:
1. Fallback session resolution window too narrow (3s):
- resolveFallbackTaskSessionId now accepts hasRetried boolean
- First attempt uses 3s window (avoids binding wrong sessions)
- Subsequent attempts widen to 8s (handles late-appearing child sessions)
- Uses useState + useEffect instead of side effects in Zustand selector
2. Polling stops before child results are captured:
- When child session goes idle before parent sees it active, polling
would stop without fetching results
- Added final-fetch-before-stop: a one-shot delayed fetch that runs
after the settle grace period, ensuring child results are captured
- Uses taskFinalFetchDoneRef to guarantee exactly one final fetch
- Preserves existing happy path (active child → normal settle timer)
* fix(task): serialize final fetch after polling stops
Move the subagent final-fetch into a dedicated effect that runs only after
polling has stopped, avoiding races between polling writes and final-fetch
writes to the child sync store.
Also retry safely on final-fetch failure by reopening polling instead of
marking the final fetch as done before the request succeeds.
* feat(task): distinguish child session errors from normal idle
When a subagent terminates with an error, abort, timeout, or failure,
the parent session could not tell it apart from a normal completion.
Changes:
- event-reducer.ts: session.error now stores { type: 'error' } instead of
{ type: 'idle' }, so consumers can distinguish failed from completed sessions
- useSessionActivity.ts: add 'error' phase to SessionActivityPhase and
isError flag to SessionActivityResult; error phase is non-active (like idle)
but distinguishable via isError
- ToolPart.tsx: pass childSessionError to TaskToolSummary and show
'Subagent session ended with an error.' instead of the generic
'No subagent session id on task metadata.' when the child errored
Other consumers of session_status that only check 'busy'/'idle' are
unaffected — 'error' falls through to existing idle-like behavior.
* Revert "feat(task): distinguish child session errors from normal idle"
This reverts commit b3cc749bde16ed8fc55e4f304dcc455484335fba.
* fix(task): delay fallback retry window widening
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
* fix: show question content in ToolPart instead of 'Awaiting response...' after refresh
Previously, when the question tool was pending/running or completed
without parseable output, the ToolPart fell through to a generic
'Awaiting response...' message. After a page refresh or app restart,
this made questions appear empty even though the tool state still
contained the question input data.
Now the ToolPart reads question text, headers, and options from the
tool state's input field, ensuring question content persists across
refreshes regardless of QuestionCard store availability.
Fixes#879
* fix: restore QuestionCard after refresh and pause working status during active questions
Two fixes for question tool UX:
1. ChatContainer: sessionIsWorking now returns false when there are
active questions (same as it already did for permissions). This
prevents the status row from showing 'Asking question...' and
instead shows the QuestionCard.
2. sync-context: resyncDirectoryAfterReconnect now re-fetches
pending questions via listPendingQuestions(). Previously only
sessions and messages were re-fetched on SSE reconnect, so
questions asked during disconnection were lost, causing
QuestionCard to disappear after page refresh.
Refs #879
* fix: hide assistant working status while questions are pending
The assistant status hook only special-cased pending permissions, so
question tools still surfaced 'Asking question...' after refresh even
when the UI was already waiting on a QuestionCard response.
Treat pending questions like other blocking requests by clearing the
working indicator until the user answers.
Refs #879
* fix: merge question/permission stores instead of full replace on bootstrap and reconnect
The root cause of QuestionCard disappearing after refresh was a race
condition between SSE events and HTTP bootstrap. Bootstrap and reconnect
both did full replacement of state.question, wiping SSE-delivered data
that arrived between the HTTP call initiation and response arrival.
Changes:
- bootstrap.ts: question and permission stores now use merge semantics.
Only sessions present in the API response are overwritten. Sessions
absent from the response are left untouched (they may hold SSE data).
- sync-context.tsx: reconnect question resync uses the same merge pattern.
No longer clears question entries for sessions not in the API response.
- bootstrap.ts: sdk.question.list() now passes directory parameter to
scope the query correctly.
This ensures SSE-delivered question data survives the bootstrap window,
while still allowing the API response to be authoritative for sessions
it covers.
Refs #879
* fix: prune stale pending requests after reconnect
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
Add reflect-metadata bootstrap so desktop sidecar no longer crashes on startup.
Update SDK v1.4 compatibility for model variant and diff payload handling.
Unify write/edit/apply patch expanded previews and hide write success output noise.
Roll back aggressive chat reuse paths that froze message parts, tool state, and completed assistant bodies when sessions were inactive or backgrounded.
- Keep older assistant messages in the active turn stable while new content streams
- Prevent existing tool rows from rerendering when new tool activity is appended
- Tighten message and tool memo comparisons to isolate render work to changed rows
* fix: resync session state after SSE reconnect to prevent stuck subagent UI
When a subagent completes while the page is in the background (common on
mobile PWA and desktop webview), the final SSE events are lost. The UI
then stays stuck on 'Waiting for subagent activity...' because:
- part.state.status never transitions to 'completed'
- session_status is never updated to 'idle'
- activeLatched remains true indefinitely
Fix:
- Add onReconnect callback to event pipeline, fired after SSE reconnect
- Add pageshow listener for bfcache restores (mobile PWA back-forward)
- On reconnect, re-fetch session list for directories with active sessions
- Pass explicit directory to useSessionActivity in ToolPart for subagents
to ensure the correct child store is queried
Closes#810
* fix(chat): resolve pending subagent task binding before metadata arrives
* fix: restore subagent activity and tool visibility after reconnect
- Resyncs session status and child session data after SSE reconnect
- Ensures child task tool messages are read from the correct directory
- Prevents stale assistant fallback from keeping sessions stuck as active
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
- Add JsonTreeViewer component with collapse/expand for nested objects and arrays
- Add rainbow colors by depth level using CSS color-mix() with syntax theme tokens
- Add virtualization support (@tanstack/react-virtual) for large JSON files (>200 nodes)
- Add JsonTreeView wrapper with Expand All / Collapse All toolbar
- Integrate into FilesView: tree/text toggle button, JSON file detection
- Integrate into ToolPart: auto-detect JSON tool outputs, render as tree
- Integrate into ToolOutputDialog: JSON tree view in expanded dialog
- Add jsonTreeUtils.ts: parse, flatten, path utilities
No new dependencies - uses existing @tanstack/react-virtual.
Colors derived from existing syntax.* theme tokens - works across all themes.
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
* fix: added desktop app background throttling
* perf: add streaming debug metrics panel
- Show streaming performance metrics in the debug panel
- Auto-enable stream profiling while the panel is open
- Add JSON export for sharing UI and VS Code metrics
* perf: batch streaming updates more aggressively
- Buffer message deltas and metadata updates to cut render churn
- Skip no-op part updates before they touch the message store
- Fix the desktop debug panel shortcut binding
* perf: split streaming event handling and coalesce deltas
- Move streaming content events onto a dedicated fast path
- Defer non-critical stream side effects off the hot path
- Merge repeated message delta events before they reach the UI
* perf: isolate streaming rows from chat rerenders
- Memoize chat rows against render-relevant message changes only
- Read live assistant text directly from store to narrow streaming updates
- Split the active streaming entry from the stable message list path
* perf: streamline chat streaming and SSE proxying
- Reduce chat rerenders around the active streaming path
- Simplify server SSE forwarding to avoid duplicate proxy work
* fix: preserve the first streaming text chunk
- Show the initial text chunk immediately before batched deltas arrive
- Bypass batching for the first text or reasoning part update
- Keep later streaming updates buffered for performance
* perf: align streaming/render hot paths with opencode parity
* perf: harden turn/cache stability and stale delta suppression
* fix: stabilize chat rendering and disable timeline interactions
- Disabled timeline dialog access from shortcuts, commands, and chat input
- Reduced chat render churn by simplifying message list and turn staging behavior
- Improved session-switch stability to prevent update-depth crashes
* perf: track static message rerenders during streaming
* perf: reduce sorted-mode activity rerender fanout
* perf: reduce chat rerender fanout and add active-turn metrics
- Reduced sorted-mode rerender coupling by tightening turn context propagation
- Added a metric for static rerenders outside the active turn during streaming
- Exposed new chat render counters in the debug panel for parity tracking
* fix: keep sorted activity mounted while stream grows
* fix: stabilize session and history scroll rendering
* refactor: decouple server routes from index
* refactor: extract fs module from server index
* refactor: move opencode route ownership into module
* refactor: extract notification route registration
* refactor: extract opencode and notification runtimes from index
* refactor: extract settings runtime and complete server modularization pass
* refactor: modularize server config, skills, icons, and tunnel routes
* refactor: extract server modules from monolithic index.js
Split proxy, routes, runtime helpers, and notification emitter
into dedicated modules under packages/web/server/lib/.
* refactor: replace session/message stores with SSE-driven sync layer
Delete ~9200 lines of old architecture (useEventStream, messageStore,
sessionStore, useSessionStore, questionStore, useTodoStore, client SSE).
New sync layer: event pipeline with coalescing + 16ms flush, pure event
reducer, per-directory child stores with LRU eviction, cursor pagination,
optimistic updates, deferred timeline staging, text throttle.
Migrate all UI consumers to sync hooks (useSessionMessages,
useSessionMessageRecords, useSessionStatus, useSessionPermissions, etc).
Strip session-ui-store to UI-only state, delegate SDK ops to
session-actions with abort-if-busy, optimistic store updates, and
response merging for revert/fork/archive/delete.
Add notification-store for SSE-driven session attention tracking,
cross-directory GlobalSessionStatusStore for sidebar indicators,
client-side diff snapshot sanitization to prevent memory bloat,
and revert message filtering via useVisibleSessionMessages.
* feat: notification store, session actions, activity detection
Add notification-store.ts for SSE-driven attention tracking.
Add sanitize.ts to strip diff snapshot memory bloat.
Add session-actions.ts with optimistic revert/fork/archive/delete.
Improve useSessionActivity with incomplete-message fallback.
Delete useServerSessionStatus polling hook.
* fix: add directory param to all SDK calls, fix command/shell/abort routing
All SDK calls in session-actions.ts now pass directory parameter —
required by OpenCode server to scope session operations. Without it,
abort, commands, revert, fork, and other operations returned 500.
Add routeMessage() in session-ui-store for shell mode (session.shell),
slash commands (session.command), and normal prompts. Command lookup
checks both sync child store and useCommandsStore. Handle /compact
locally via session.summarize().
Implement getContextUsage() to restore header context usage display —
reads token counts from last assistant message in sync store.
* refactor: replace custom API proxy with http-proxy-middleware
Remove ~280 lines of custom proxy code: forwardSseRequest,
forwardGenericApiRequest, collectRequestBodyBuffer, header
manipulation, hop-by-hop filtering, SSE block buffering.
Replace with single createProxyMiddleware() call that handles
SSE streaming, large bodies, and timeouts out of the box.
Dynamic router for OpenCode port changes after restarts.
Auth headers injected via proxyReq hook.
Keep: readiness gate, Windows session merge, API prefix detection.
* perf: targeted event draft cloning to fix streaming render cascade
Event handler was eagerly cloning all state slices on every event,
breaking Zustand selector referential equality. During streaming
(~60 events/sec), this caused every subscriber to re-render regardless
of which slice actually changed.
Now only clones fields the specific event type mutates. Also extracts
StatusRowContainer to isolate high-frequency useAssistantStatus
subscription, removes dead messageStreamStatesMap subscription from
ChatContainer, and narrows useAssistantStatus to only track last
assistant message parts.
MessageList renders: 1972 → 296 per streaming session (-85%).
* fix: null safety for sync state slices
Add defensive ?? {} guards on permission, question, session_status,
and message record access. Prevents crashes when child store state
is partially initialized during bootstrap.
* perf: dedup inflight SDK calls, extract concurrency util, delay PR tracking
Extract mapWithConcurrency to shared lib/concurrency.ts. Add in-flight
dedup for loadProviders/loadAgents to prevent concurrent duplicate SDK
calls. Delay initial PR background tracking by 5s to reduce startup
CPU burst.
* fix: header session lookup across all child stores
Session title and context panel click failed when session belonged to
a different directory than the current child store. Fall back to
getAllSyncSessions() to search all initialized stores.
* chore: bump @opencode-ai/sdk to 1.3.5
* docs: add sync event handling guide
* Optimize session prefetch and improve delete/archive UX
- Add settlement delay to session prefetch to avoid race conditions on
rapid session switches
- Reduce git diff prefetch and session cache limits for better performance
- Implement optimistic UI updates for session delete/archive operations
with proper rollback on failure
- Wire session prefetch hook into SessionSidebar with sync integration
* Add file content cache and sync optimizations
- Wrap FilesAPI with in-memory LRU cache for file content with dual
constraints (entry count and byte size)
- Optimize chat timeline scroll restoration using useLayoutEffect
- Preserve React references in message and part arrays to prevent
unnecessary re-renders when prepending history
- Add session prefetch TTL cache to prevent redundant fetches
- Integrate session prefetch cache clearing with eviction flow
* Improve session sidebar error handling and add diff prefetch filtering
Load active and archived sessions independently using Promise.allSettled
to prevent one failure from blocking the other. Add retry logic to session
API calls and skip large files during diff prefetch to improve performance.
* Replace sendMessage with optimisticSend wrapper
Introduces optimistic UI updates for normal chat messages to provide
instant feedback. Messages appear immediately in the UI while the API
call executes in the background, with automatic rollback on errors.
* perf: split stores, proper optimistic send, fix revert/directory bugs
- split session-ui-store into voice/input/selection/viewport stores
to reduce subscriber re-evaluation during streaming
- wire optimisticSend through useSync shadow Map infrastructure
matching OpenCode's pattern (no heuristic part detection)
- port OpenCode Identifier.ascending ID format for correct sorting
- pass messageID to promptAsync to prevent duplicate messages
- fix worktree directory not propagating to session actions
(dynamic dir() via opencodeClient.getDirectory)
- fix setCurrentSession accepting directoryHint for new sessions
- fix revert not hiding messages (session limit was 5, bumped to match loaded count)
- fix revert optimistic message removal from store
- fix load-more flicker (useLayoutEffect scroll compensation)
- add prefetch TTL cache, file content LRU cache
- add session prefetch for adjacent sessions
- add instant archive/delete (optimistic before SDK call)
- migrate legacy window.__zustand_session_store__ to session-ui-store
- add retry + independent error handling for archived sessions
- add AGENTS.md performance rules
* perf: startup optimization — dedup, caching, light git status, diff rendering gates
- defer diff prefetch to git tab open, reduce concurrency 4→2, skip >500 changed lines
- cap project git checks concurrency (2), directory status probe (3)
- dedup provider/agent loading, github auth, worktree list (in-flight + TTL caches)
- delay PR tracking 5s, cache 403 search failures per-repo
- coalesce settings PUT (200ms debounce), cache settings GET (2s TTL)
- cache canonical directory resolution (60s TTL)
- persist missing directory status to localStorage (10min TTL)
- light/heavy git status: polling skips numstat+line counting+rev-list
- large diff rendering gate (>500 lines → "render anyway" button)
- tokenization degradation for >500KB files in Pierre
- parallelize main.tsx pre-render awaits
- batch sidebar file tree expanded paths restoration (3 at a time)
- remove bare useConfigStore() subscription in AgentsPage
- sync worktree sandboxes to OpenCode SQLite DB
- fix RightSidebarTabs ternary → explicit tab matching
- defensive guards on sync state (session_status, permission, question, message)
* fix: add defensive guards on remaining sync state field accesses
guard session_status, permission, message, todo, part, config with ?? {}
in useDirectorySync selectors, session-cache, and bootstrap
* fix: add missing directory dep to useCallback in use-sync.ts
* fix: preserve diffStats when light-mode polling overwrites status
* perf: optimize startup git status polling and diff rendering
Preserves diff stats when lightweight polling updates repository status
Reduces startup overhead with smarter git polling and store updates
Adds detailed optimization and migration docs for next performance steps
* fix: keep chat diff stats stable during git status updates
Prevents lightweight git polling from dropping diff statistics
Keeps MessageList diff indicators consistent while status refreshes
Improves reliability of git-aware chat rendering
* fix: user animation replay, queued message variant, startup provider loading
- consume animation ID after first play to prevent re-animation
on neighbor assistant message completion
- capture send config (model/agent/variant) at queue time matching
OpenCode's FollowupDraft pattern instead of re-resolving at send time
- replace one-shot startup recovery effect with polling interval
that retries every 2s until providers and agents load
- fix optimistic bridge to avoid re-render loop (stable ref wrappers)
* chore: update tauri to 2.10.3 and all plugins to latest
- tauri 2.9.4 → 2.10.3
- tauri-build 2.5.3 → 2.5.6
- tauri-plugin-dialog 2.4.2 → 2.6.0
- tauri-plugin-log 2.7.1 → 2.8.0
- tauri-plugin-shell 2.3.3 → 2.3.5
- tauri-plugin-updater 2 (floating) → 2.10.0 (pinned)
- @tauri-apps/api ^2.9.0 → ^2.10.1
- wry 0.53.5 → 0.54.4 (transitive)
* refactor: decouple web server index orchestration runtimes
* fix: align VS Code runtime behavior with web and reduce draft view CPU load
- Queue VS Code bridge and SSE startup requests until API readiness to avoid false bootstrap failures
- Make agent manager actions directory-aware and remove real worktrees with safer partial-failure handling
- Replace heavy logo animation path with a lightweight pulse to cut draft-session CPU usage
* fix: restore auto-selected file sending in chat input
- Send server-selected files as proper file URLs in the message payload
- Include server-backed attachments in submit flow instead of dropping them
- Restore queued-message attachments through the refactored input store
* fix: restore session model selection consistently on session switch
- Restore agent, model, and variant from the latest loaded user message for each session
- Wait for session messages before applying restored selections to avoid stale or missing state
- Remove legacy session-choice inference paths that caused overlap and instability
* fix: restore permission replies and auto-accept across sessions
- Scope permission and question replies to the target session directory so answers take effect reliably
- Make permission auto-accept immediately handle pending requests and react to new permission prompts
- Keep parent-session handling working for child-session requests through the shared response path
* feat: add reusable fuzzy branch fuzzy-search helper and dialog integration (#798)
* feat: add reusable fuzzy branch search for worktrees
* chore: drop planning docs from feature branch
* feat: make worktree branch refresh manual
* feat: add configurable session retention action
* refactor: centralize global session state in ui store
* fix: cancel debounced permission push after reply
* docs: clarify global and directory session store architecture
* docs: refine agent development rules and session activity guidance
- Clarify agent code of conduct and durable development patterns
- Add explicit shared-store rerender and live-state guidance
- Narrow session activity fallback to avoid stale working state
* chore: updated .gitignore
---------
Co-authored-by: Iuliia Ivashko <yulia.ivashko@gmail.com>
* fix: preserve unsent prompt when adding editor context in VS Code
* fix: append Add to chat selections as markdown blocks with stable spacing
Convert selected assistant content to markdown before appending
Wrap each Add to chat selection in an `md` fenced block
Preserve multiline composer formatting across repeated appends
* fix: normalize persisted Windows paths to prevent identity mismatches
* fix: hide Windows subprocess console popups across server tasks
Hide OpenCode startup and shell command child windows in the web server
Apply windowsHide to cloudflared and skills-catalog git subprocesses
Cover remaining git service exec paths that could surface console windows
* fix: restore chat auto re-pin when reaching bottom
Re-pin now triggers when scrolling back into the bottom zone, not only via the button.
Upward user scroll intent still unpins immediately and is not overridden by re-pin.
Unified bottom/re-pin threshold logic to reduce sensitivity mismatches.
* fix: restore chat scroll release on mobile during streaming
Restores pinned-scroll release on touch scroll up so mobile users can leave auto-follow while streaming.
Improves re-pin behavior near bottom to avoid sticky or inconsistent pin states.
Includes related chat UI and dependency updates in the same change set.
* fix: hide daemon startup probe consoles on Windows
* fix: prevent pinned scroll tug-of-war during streaming
* fix: prefer git.exe to avoid Windows diff popup flashes
* fix: prefer git.exe discovery in Windows git flows
* fix: avoid where probes in Windows git resolution
* fix: avoid update-check subprocess flashes on Windows
* fix: normalize read file path labels
* feat: add OpenChamber defaults and improve theme ports
Add new OpenChamber light and dark themes
Regenerate imported themes with stronger surface mapping
Set OpenChamber themes as the default top options
* fix: stabilize chat pin and unpin behavior during streaming
Restores reliable unpin on upward wheel and touch gestures while auto-follow is active.
Prevents immediate re-pin while the user is actively scrolling upward near the bottom.
Keeps smooth follow-to-bottom behavior while reducing scroll tug-of-war.
* fix: suppress Windows command popups in VSCode runtime processes
Hide spawned git and server process windows in VS Code runtime
Extend hidden-window handling to server port cleanup and reveal commands
Keep behavior unchanged on non-Windows platforms
* fix: polish activity tool rows and message spacing
Show each tool call as its own row in live and activity views
Keep tool descriptions inline with truncation and cleaner read-file paths
Tune spacing, todo counts, and bash timing display for clearer chat flow
* fix: refine activity tool rows and truncation behavior
Make activity collapse behavior consistent across modes and rename default mode label to Expanded
Show tool descriptions inline with improved spacing and one-row-per-tool rendering
Fix read/edit path truncation to clip from the start while keeping edit filenames highlighted
* fix: resolve chat activity lint regressions
Remove unused activity render mode state in message body
Mark path helper animation arg as intentionally unused to satisfy lint
* refactor: add canonical turn projection pipeline for chat
Centralizes turn/activity/summary derivation, migrates render consumers to shared projection sources, and adds projector regression coverage for retries, malformed parent fallbacks, and activity segmentation.
* refactor: stream assistant text live in turn-first render path
* refactor: complete phase-3 turn timeline history/navigation
* refactor: complete phase-4 turn pipeline cutover
Remove legacy grouping adapters and lock key edge cases with executable regression tests so turn-centric rendering stays stable across retry/history/navigation flows.
* fix: align chat history loading path with opencode parity
* fix: stabilize chat streaming and reduce render churn
* feat: add blurIn streaming text animation and smooth lerp-based auto-scroll
Streaming markdown now uses Streamdown blurIn animation (150ms, ease-out) for per-word reveal
Auto-scroll during streaming uses continuous exponential smoothing (lerp) instead of restarting spring animations
One-shot scroll-to-bottom (button click) uses motion spring for natural deceleration
* fix: respect user scroll-up during streaming and re-pin on scroll back to bottom
* fix: stabilize activity stream and tool progress rendering
Activity now stays chronologically consistent and avoids duplicate reasoning/justification.
Tool rows show running state and duration earlier with smoother pending behavior.
Removed legacy trim/timestamp paths to prevent message drops and simplify Activity UI.
* fix: reverted regression of revert functionality
* fix: stabilize chat activity layout and tool progress behavior
Stopped user messages from re-animating when new user messages appear.
Made Activity and aggregated tool rows wrap inline consistently without misaligned headers/icons.
Fixed tool part matching so duration and shine no longer reset across pending/in-progress status updates.
* fix: restore activity mode behavior and stabilize tool rendering
Re-enabled Collapsed/Summary/Detailed/Changes defaults for Activity and tool expansion.
Fixed tool row wrapping/alignment, removed user fade re-animations, and disabled FadeInOnReveal animations.
Improved tool status handling to reduce timer/shine resets and made reasoning bold render as normal text.
* refactor: simplify chat tool and message rendering
Replace activity-group rendering with flat inline part rendering
Remove obsolete tool output and justification activity settings
Keep user message animation and improve edit/apply-patch file path headers
* style: narrow chat and composer columns equally
* fix: Tool status checks and abort flow regression
* fix: improve multi-file apply patch header rendering
* fix: make timeline message jump scroll to selected chat entry
Conversation Timeline clicks now reliably scroll to the selected message in chat
Timeline dialog waits for navigation result before closing to avoid silent failures
Chat message scrolling now resolves the active chat scroller consistently
* chore: remove branch-added chat tests and clean lint leftovers
Removes newly added chat and message test files from this branch
Fixes lint blockers in ProgressiveGroup, ToolPart, and messageStore
Keeps type-check, lint, and build passing after cleanup
* fix: keep composer status row closest to the input
Status/todo row now renders below queued messages and attachments.
Linked GitHub issue/PR chips stay above status so input context order is consistent.
Improves chat composer readability while assistant is working.
* fix: disable assistant header animations and polish chat status behavior
Assistant message header now renders without transition effects
Removed a lint issue from the working placeholder props
Chat status and message flow updates improve consistency during active turns
* feat: increase bottom spacer in mobile chat for better scrolling
* feat: add sorted chat mode with progressive activity rendering
Adds global chat render mode settings for sorted and live behavior
Renders non-stop assistant output in Activity as messages complete
Disables streaming text animation in sorted mode and restores classic reasoning/justification blocks
* fix: stabilize chat timeline navigation and older history loading
Prevents auto-loading older history from scroll and keeps loading behind the button
Fixes timeline jump-to-message behavior that snapped back to the bottom
Reduces chat list flicker and empty-state glitches on large session pagination
* fix: stabilize sorted activity text and hide reasoning timers
Prevented sorted justification from appearing before message completion by requiring explicit non-stop finish.
Removed duration values for sorted Thinking and Justification blocks.
Kept smooth sorted auto-follow behavior tuned to reduce bottom-jump jitter.
* refactor: simplify chat tool rendering paths and add parts docs
Centralized tool icon mapping into a shared presentation helper used by grouped and expandable rows.
Removed static-tool-specific branches from ToolPart to keep it focused on expandable tools.
Added a new DOCUMENTATION.md explaining where to change tool descriptions and rendering behavior.
* feat: enhance event stream handling for message parts
- Refactor event key building functions to improve clarity and reduce redundancy.
- Introduce `applyPartDelta` method in message store for handling delta updates to message parts.
- Update `useEventStream` to utilize the new `applyPartDelta` method for processing incoming deltas.
- Enhance text extraction logic to accommodate new part types and improve merging behavior.
- Implement logic to skip delta-driven updates for ongoing text/reasoning parts to prevent overwriting.
- Adjust server-side text merging logic to handle trimmed text comparisons and improve consistency.
* feat: enhance OpencodeService with delta handling and stale delta management
- Introduced globalSseStaleDeltas to track stale deltas.
- Added methods to generate keys for delta and updated part events.
- Updated global SSE loop to skip processing stale deltas.
- Refactored global SSE event handling to improve performance and reliability.
refactor: remove unused streaming part handling in messageStore
- Eliminated streaming part queue and associated logic.
- Simplified message merging logic by removing redundant checks.
- Streamlined message handling to improve clarity and maintainability.
chore: clean up unused streaming text normalization functions
- Removed deprecated functions related to streaming text identity and merging.
- Simplified normalizeStreamingTextPayload to focus on current functionality.
* refactor: simplify streaming event passthrough
Use SDK-native global event streaming in the UI client
Remove dead server-side SSE normalization helpers
Keep streaming payloads closer to upstream behavior
* revert: remove message memory settings UI
Drop the restored message memory settings screen
Keep session settings focused on current defaults
Preserve chat history limits as internal behavior
* feat: add compact collapsed Activity preview in sorted mode
Collapsed Activity now shows a live preview of the latest 7 entries
Older activity rows roll up behind a +N more indicator
The +N more indicator is clickable to expand the full Activity
* fix: adjusted activity changed files text prominence
* fix: make sorted mode snap to bottom when not streaming
* perf: show chat scrollbar only on user-driven scrolling
Chat scrollbar now stays hidden during automatic follow-to-bottom
Scrollbar visibility is gated by real user scroll intent
Reduced scroll overhead by removing timer-based intent tracking
* refactor: align web and vscode session activity streaming
Route VS Code SSE through SDK-based proxy flow
Restore controlled web session activity tracking and cooldowns
Keep chat activity behavior consistent across runtimes
* fix: adjusted muted foreground themes color
* fix: stabilize session activity and attention updates
Keep streamed chat state in sync as sessions complete
Restore reliable attention indicators for inactive sessions
Tighten server and UI event handling for chat updates
* feat: add chat render previews and file icon visibility setting
Added animated chat render mode previews in Chat settings.
Added a new toggle to show or hide file icons across tool rows.
Persisted chat render, activity, and mermaid modes to shared settings file.
* fix: update default GitHub OAuth client ID
Use the new OpenChamber org GitHub OAuth app ID by default.
Keep web server and VS Code auth defaults in sync.
* fix: sync chat settings across VS Code chat views
Broadcast settings changes to both sidebar and editor chat webviews.
Apply synced settings in each webview via shared settings refresh.
Ensures chat render mode updates appear immediately in editor tabs.
* fix: stop writing session folders file in VS Code workspaces
Disable disk persistence for session folders in VS Code webview runtime
Keep session folder state in VS Code/webview storage instead of project files
Preserve existing behavior for non-VS Code runtimes
* style: polish expanded tool panels and bash output readability
Removed extra borders/labels in expanded tool cards for a cleaner UI
Added softer scroll shadows and full-height decorative activity line
Switched bash command/output to code-style typography with tighter spacing
* feat: add default-open tool controls for chat activity
Added Chat settings toggles to open Bash and Edit tools by default
Default-open behavior now applies across both sorted and live activity rendering
Users can still manually collapse default-open tools, plus bash output height was reduced
* fix: align chat loading skeleton with message layout
Match skeleton width and horizontal alignment to chat message column
Add one-line tool-style skeleton rows with subtle circular placeholders
Increase top spacing so loading state no longer touches chat header
* fix: prevent blank screen when adding inline diff comments
Sanitize persisted inline comment drafts to ignore invalid data
Harden diff annotations against malformed line numbers
Fail safely when annotation updates error instead of crashing the view
* fix: streamline VS Code archived sessions sidebar
Show archived sessions in VS Code only for the active workspace directory.
Render archived sessions as a flat list in VS Code without project-root subfolders.
Hide the "Open in Side Panel" session action in VS Code.
Add a new Chat checkbox to toggle timestamps for tool, reasoning, and justification headers (default off).
Keep assistant message footer timestamps visible and switch to a more readable compact date format.
Preserve hover timestamp overlays with chat-surface background when the new setting is enabled.
Tool-card clicks for edit-like actions now open a VS Code diff instead of only the file
Diff view focuses the first changed line for faster review
Uses a virtual readonly original buffer to avoid opening unsaved draft tabs
Hides date/timestamp overlays on tool card headers
Hides date/timestamp overlays on thinking and justification headers
Keeps timing logic in place behind TODO-gated flags for future UX improvements
* fix(chat): render active tools before completion
* fix(chat): preserve running activity in collapsed view
* fix(chat): live-update duration for active tools
* fix: show live tool activity without timer resets
Show active tool rows before completion
Keep live duration stable during streaming updates
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
* fix: resolve Windows CLI module loading on absolute paths
* fix: improve chat tool rows layout and timestamp readability
* fix: make web update restart more reliable
* fix: make web self-update detect package manager correctly
* feat(chat): add shared activity timestamp formatter
* feat(chat): pass assistant created timestamp to message body
* feat(chat): render footer timestamp beside elapsed time
* feat(chat): pass timing metadata in reasoning text blocks
* feat(chat): propagate justification timing to timeline block
* feat(chat): show thinking duration with hover end time
* feat(chat): reveal tool end time on activity hover
Display the actual subagent type (e.g., 'general', 'build') instead of hardcoded
'subAgent' in the task tool button. Changes 'session' to 'subtask' for consistency.
- Add input prop to TaskToolSummary component
- Extract subagent_type from task input
- Capitalize agent type and update button text format
- Use active session prompts for commit/PR generation and drop backend git generation routes.
- Improve tool activity UX with Structured Output rendering, description styling tweaks, and detailed-mode expansion fixes.
* feat(chat): add mermaid preview popups and fullscreen diagram viewer
Enable opening Mermaid diagrams from markdown and file attachments with a dedicated fullscreen dialog, while tightening preview loading behavior and sizing for more reliable interaction.
* refactor(chat): extract shared preview overlay hooks
Centralize fullscreen preview transition and viewport lifecycle logic so image and Mermaid dialogs stay behaviorally aligned while reducing maintenance overhead.
* fix(security): enforce workspace boundaries for fs read endpoints
Validate /api/fs/read and /api/fs/raw paths against active workspace roots and canonical realpaths to block traversal and symlink escapes before serving file contents.
* fix(chat): remove dead Mermaid copy component
Drop an unused merge-leftover component in MarkdownRenderer to keep lint clean without changing Mermaid preview behavior.
* feat: reload interface after skills operations
- Adds configurable delay before interface reload after skills changes
- Introduces polling to wait for application health after reload
- Updates UI to show reload message when installing or modifying skills
* feat: distinguish skills from commands in UI
- Displays skill badge for commands that are registered skills
- Prevents editing skills through command management interface
- Triggers interface reload after skill operations to reflect changes
* feat(chat): align command and subtask UX with opencode parity
Route commands/shell via parity paths, render delegated subtasks cleanly, and surface child-session permission/question prompts in parent chat.
* fix(ProjectEditDialog): improve layout consistency
* fix: update task icon and session handling in ToolPart
* feat(chat): add shell-mode input and collapse shell bridge output
Switch leading ! to shell mode UX and fold synthetic shell bridge assistant messages into the user shell bubble with inline output actions.
* fix: remove AI agent icon from file mention autocomplete
* fix: remove unused icon import from file mention component
* feat: show current branch in empty chat state
* fix: display current git branch for worktrees and update them with branch change
* refactor: improve read tool output parsing with structured data
* feat: add support for message part delta events
* fix(chat): improve streaming rendering, scroll behavior, and assistant action visibility
* feat: Add mermaid diagram support to chat markdown rendering
* fix: update table download functionality to include success notification and remove unused MarkdownRenderer import
* refactor: streamline Streamdown component props for improved readability
* fix: preserve Streamdown code-block markers and use native Tauri cache clearing
* feat: add context overview panel to view conversation details
Bohdan Triapitsyn