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replay-latest ValueStream for session state streams (T-386, T-274)

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Broadcast streams drop the current value for late subscribers — the
shape behind T-274: the init event fires while spawn() is still
awaiting the transcript-tail read, before the pane subscribes, so the
status bar stayed blank. New pure-Dart ValueStream<T> (no rxdart —
prefer-zero-deps) replays the latest value to each new subscriber;
statusStream, busyStream, and pendingPromptStream in the claude
builtin now use it. busyStream subscribers see the current state
first (seeded false), which the busy test now asserts.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-06-12 01:05:08 +02:00
co-authored by Claude Fable 5
parent 0e7353bf9c
commit 5f9c054420
8 changed files with 244 additions and 4 deletions
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.pql/changelog/ticket_history/2026-06.sql
+3
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@@ -3994,3 +3994,6 @@ UPDATE 2026-06-08: the active hang did NOT reproduce — clide is running fine i
T-361 (done, 2026-06-12) added the session-level building blocks this ticket can reuse: StreamJsonSession now watches the process exit code (SessionEnd with stderr tail, replay-latest via session.end) and the pane surfaces ''claude exited (code N) — /clear to restart''. A resume that dies at spawn now surfaces instead of hanging silently; what remains here is the timeout/fallback for a resume that starts but never produces the init event, and resume-decided-by-content.', NULL, '2026-06-11 22:53:52', '2026-06-11 22:53:52', '2026-06-11 22:53:52', NULL, '5a99913696126412ccc7b18f75d3ec15', 2) ON CONFLICT(hash) DO NOTHING;
INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHBN5F0F8SDF15P21DNKT1W', 'status', 'backlog', 'in_progress', NULL, '2026-06-11 22:54:18', '2026-06-11 22:54:18', '2026-06-11 22:54:18', NULL, '2cadeabff0a0a89bbcc06db35dfa2f15', 2) ON CONFLICT(hash) DO NOTHING;
INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHBN5F0F8SDF15P21DNKT1W', 'status', 'in_progress', 'done', NULL, '2026-06-11 22:57:42', '2026-06-11 22:57:42', '2026-06-11 22:57:42', NULL, 'cb060646e7e967d607dc013a75ec0a28', 2) ON CONFLICT(hash) DO NOTHING;
INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHD098CV2N73823KX4Z99P4', 'status', 'backlog', 'in_progress', NULL, '2026-06-11 23:01:24', '2026-06-11 23:01:24', '2026-06-11 23:01:24', NULL, '33ef6141e9af3e6957def829e635b138', 2) ON CONFLICT(hash) DO NOTHING;
INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FB0TNQM5W6VN98RQM6S22X28', 'status', 'backlog', 'done', NULL, '2026-06-11 23:04:46', '2026-06-11 23:04:46', '2026-06-11 23:04:46', NULL, '5b0e12802a8f9c0b90f8b08e97f85e29', 2) ON CONFLICT(hash) DO NOTHING;
INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHD098CV2N73823KX4Z99P4', 'status', 'in_progress', 'done', NULL, '2026-06-11 23:04:46', '2026-06-11 23:04:46', '2026-06-11 23:04:46', NULL, '5d8d8c7a17da4894510db957e7af3c3f', 2) ON CONFLICT(hash) DO NOTHING;
.pql/changelog/tickets/2026-06.sql
+23
View File
@@ -4066,3 +4066,26 @@ Fix: generate a token in the lock file (Claude Code /ide lock format has a slot
INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHBN5F0F8SDF15P21DNKT1W', 'bug', '06FBHBGHNEQTAEPGNJKN42C1E8', 'MCP HTTP server exposes the full dispatcher with zero auth', 'lib/src/ipc/mcp_server.dart:138-195, started unconditionally at boot (lib/main.dart:174-180). D-71 threat model (another user on the same host must not drive my IDE) is enforced with 0600 on the unix socket — then bypassed wholesale by an unauthenticated localhost HTTP port that, since D-86, serves every clide verb as a tool.
Fix: generate a token in the lock file (Claude Code /ide lock format has a slot for it) and require the auth header on every request. Tests: request without token is rejected; token round-trips via the lock file.', 'done', 'critical', NULL, NULL, NULL, '2026-06-11 21:55:13', '2026-06-11 22:57:42', NULL, '14de71ed19e921a370001097887a7e6f', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);
INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHD098CV2N73823KX4Z99P4', 'task', '06FBHBGHNEQTAEPGNJKN42C1E8', 'ValueStream (replay-latest) wrapper; retrofit statusStream, busyStream, pendingPromptStream', 'Broadcast streams that carry STATE (not events) drop the current value for late subscribers. This one shape caused T-274 (status bar blank — root cause appended there), the meta sidebar''s manual compensation, and the prompt-stream''s initialData workaround.
Fix: write one small ValueStream<T> wrapper (a broadcast stream that replays the latest value to each new subscriber, plus a .value getter) in the kernel; retrofit statusStream, busyStream, and pendingPromptStream in the claude builtin; delete the per-site workarounds it obsoletes. No third-party dep (rxdart) — prefer-zero-deps; the wrapper is ~30 LOC.
Acceptance: unit tests for the wrapper (late subscriber gets latest value; no value yet = no synthetic emit unless seeded); T-274 repro covered: subscribing after the init event still yields the status. Closing this should make T-274 fixable in one line at the call site.', 'in_progress', 'high', NULL, NULL, NULL, '2026-06-11 22:01:07', '2026-06-11 23:01:24', NULL, '490fa0773537afc3ec2be0756960dc05', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);
INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FB0TNQM5W6VN98RQM6S22X28', 'bug', '06FB0TNQM5TWC00GW0P3X02HZW', 'Claude bottom status bar often stays empty / doesn''t update', 'The bottom status-bar context slot for the Claude pane (model · permission-mode · context, T-145/T-150) frequently renders empty and doesn''t update. The slot is fed by the active pane''s status widget via the focus service (PaneContextStatusItem -> ClidePane.statusWidget in claude_pane.dart), sourced from StreamJsonSession.statusStream (model/permissionMode from the ''system/init'' event; cost/contextWindow from ''result'' events in stream_json_session.dart).
Repro: open clide; the status line is often blank and stays blank until/unless a turn completes (or never populates).
Likely suspects to investigate:
- status only published while the pane is the focused contribution (active==true) — if focus isn''t on the Claude pane, the slot clears.
- statusStream may not emit until the first ''result''/''init'' event; a resumed session (--resume) may not re-emit init, so model/mode never arrive.
- _statusWidget returns null when _status.isEmpty AND no skills, so an unstarted/!init session shows nothing.
- focus-slot wiring (FocusTracker) may not re-publish on pane (re)build / session rebind.
Acceptance: the Claude status line shows model · mode · context promptly after a session starts/resumes and stays current across turns and focus changes; add a test covering the resumed-session (no fresh init) case.
Root cause found and verified by the 2026-06-11 Fable review (fable-ous.md, epic T-359): statusStream is a plain broadcast controller — the system/init event fires while spawn() is still awaiting a 256KB transcript-tail read, before the pane ever subscribes (lib/builtin/claude/src/claude_pane.dart:322, lib/builtin/claude/src/session_orchestrator.dart:222-225). Fix: seed from session.status on bind, or make the stream replay-latest (see the ValueStream systemic ticket under T-359).', 'done', 'medium', NULL, NULL, NULL, '2026-06-08 07:26:13', '2026-06-11 23:04:46', NULL, '97024e51051e9ac66e65376e953a5faf', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);
INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06FBHD098CV2N73823KX4Z99P4', 'task', '06FBHBGHNEQTAEPGNJKN42C1E8', 'ValueStream (replay-latest) wrapper; retrofit statusStream, busyStream, pendingPromptStream', 'Broadcast streams that carry STATE (not events) drop the current value for late subscribers. This one shape caused T-274 (status bar blank — root cause appended there), the meta sidebar''s manual compensation, and the prompt-stream''s initialData workaround.
Fix: write one small ValueStream<T> wrapper (a broadcast stream that replays the latest value to each new subscriber, plus a .value getter) in the kernel; retrofit statusStream, busyStream, and pendingPromptStream in the claude builtin; delete the per-site workarounds it obsoletes. No third-party dep (rxdart) — prefer-zero-deps; the wrapper is ~30 LOC.
Acceptance: unit tests for the wrapper (late subscriber gets latest value; no value yet = no synthetic emit unless seeded); T-274 repro covered: subscribing after the init event still yields the status. Closing this should make T-274 fixable in one line at the call site.', 'done', 'high', NULL, NULL, NULL, '2026-06-11 22:01:07', '2026-06-11 23:04:46', NULL, '9cd3d1777cfbe56c117a91aa3f303855', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);