Researcher (gsd-phase-researcher) returned HIGH-confidence verdicts on the
12-area brief from .continue-here.md:
Ask 1 (install-time auto-start): INFEASIBLE in unmanaged Chrome.
W3C Screen Capture spec §5.1 mandates transient user activation;
chrome.runtime.onInstalled confers none. Floor: 2 clicks
(toolbar/welcome-page → Share button on picker). Enterprise policy
ScreenCaptureWithoutGestureAllowedForOrigins exists (Chrome+Edge ≥ 123)
but only applies to managed-Chrome contexts with extension URL
whitelisted — does NOT apply to Load-Unpacked deployment; deferred-idea.
Ask 2 (auto-select desktop / skip picker): INFEASIBLE in unmanaged Chrome.
W3C spec mandates user MUST choose every time. displaySurface:'monitor'
is a hint (already applied src/offscreen/recorder.ts:270).
chooseDesktopMedia doesn't auto-accept on single-monitor setups AND
streamId not usable in MV3 offscreen documents (Chrome DevRel position).
Primary recommendation: KEEP Plan 01-10's current informational CTA
charter (commit 3a530c2 unchanged). Both architectures hit the same
2-click floor; informational CTA has lower maintenance surface AND
teaches operator where the toolbar icon lives (critical for day-2+
sessions).
Enhancement candidate (NOT required for 01-10): add
monitorTypeSurfaces:'include' (Chrome ≥ 119) to offscreen getDisplayMedia
constraints — single line, zero risk, removes tab/window panes from
picker entirely. Suggest as Plan 01-09 amendment OR mini-plan.
Open questions for orchestrator (3):
1. Confirm informational CTA charter (this research recommends YES)
2. Ship monitorTypeSurfaces:'include' as Plan 01-09 amendment vs deferred?
3. Are Repremium operators on Wayland Linux? (affects welcome-page copy)
File: .planning/phases/01-stabilize-video-pipeline/01-10-RESEARCH.md
(1092 lines; full W3C citations, Chromium issue links, prior art for
Loom/Screencastify/Veed/Awesome-Screenshot, ASCII flow diagrams,
edge-case enumeration for macOS/Wayland/incognito/managed-Chrome)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Plan 01-09 Amendment 3 (2026-05-19) — atomic documentation pass for
the save-does-not-stop-recording charter reversal.
Changes:
- .planning/phases/01-stabilize-video-pipeline/01-09-PLAN.md:
Amendment 3 block added above <success_criteria> (mirrors
Amendment 2 placement). Describes the reversed charter,
references the new debug record, points at the inverted
test file + harness A14.
- .planning/phases/01-stabilize-video-pipeline/01-13-SUMMARY.md:
"Subsequent Reversal (2026-05-19)" footer added. Notes that
npm run test:uat still 15/15 GREEN under the inverted A14
contract; vitest baseline preserved at 98 GREEN.
- .planning/STATE.md:
Plan 01-13 closure block extended with CHARTER REVERSAL bullet
citing the 4 commit SHAs (6ac23fd RED, 7645765 GREEN,
1baaf45 A14 invert, this commit docs).
- .planning/debug/resolved/01-09-save-stops-recording.md:
SUPERSEDED 2026-05-19 footer appended (audit trail; original
fix was technically correct against its charter, reversal is
UX iteration not technical defect).
- .planning/debug/resolved/01-09-save-does-not-stop-recording.md:
NEW debug record landed directly in resolved/ (no checkpoint
cycle — orchestrator-diagnosed reversal). Documents symptom,
charter clarification cycle, fix shape, RED→GREEN evidence
with commit SHAs + vitest/harness output, anti-regression
coverage at unit + E2E layers.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Lands the Wave 4 closure docs:
- 01-09-PLAN.md Amendment 2: harness PASS (npm run test:uat 14/14 GREEN at d793c9e)
now closes Plan 01-09 functional contract (original Task 5 steps 4, 5, 7-13, 15);
operator retains only step 1 (build) + step 14 (brand/design ack — Plan 01-13
Task 9 charter). Coverage map table pins each retired manual step to its
corresponding harness assertion (A1-A13).
- STATE.md sync: completed_plans 9->11, percent 92->~95, last_updated
2026-05-19T10:40:00Z; Current Position narrative replaced with Plan 01-13
landing summary + outstanding Phase 1 gates (Plan 01-13 Task 9 operator
checkpoint, Plan 01-10 welcome tab, Plan 01-12 design integration awaiting
designer reply).
Verification (post-edit, docs-only — no src/ touched):
- npm run test:uat: 14/14 GREEN at d793c9e baseline preserved
- npx vitest: 94/94 (the no-test-hooks-in-prod-bundle.test.ts default 5s timeout
flake is harness-side, not introduced by this commit; re-run with
--testTimeout=60000 passes)
- git status post-commit: clean
Followup: ROADMAP.md is missing entries for Plans 01-08 through 01-12 (these were
all added mid-phase across multiple sessions and the roadmap was never amended;
the Phase-1 Plans block lines 74-80 stops at 01-07 and the progress table line
238 shows the stale '7/7 Complete' count). Backfilling those entries is a
separate concern — out of scope for Plan 01-13 closure per plan-checker flag #4
(hold the line; do not inject). STATE.md notes the counter > total mismatch for
visibility.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
HANDOFF.json artifact consumed per /gsd-resume-work workflow
(one-shot resumption pointer). STATE.md synced forward to reflect
true mid-Plan-01-09 state — status flipped planning→executing,
progress 90→92, Current Position now shows Phase 1 REOPENED with
Plan 01-09 Bug B pending and Plan 01-10 Wave 3 pending.
Session continuity records:
- Pause checkpoint commit: ed82fd6
- Bug A icons commit: a881bf0
- Intel docs unlock commit: f768498
- Next: /gsd-debug session for Bug B state-machine routing
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
REQ-video-ring-buffer flipped from [x] back to [ ]. ROADMAP.md Phase 1
row reverted from [x] Closed 2026-05-15 to [ ] reopened 2026-05-16.
STATE.md status flipped phase_complete → phase_reopened with full
historical narrative preserved.
Root cause (confirmed at byte level by gsd-debugger 2026-05-16):
D-13's concat-of-self-contained-WebM-segments architecture produces a
3-EBML-header WebM that standards-compliant Matroska parsers
(mpv, ffmpeg, Chrome HTMLMediaElement) play only as the first segment
(~9.94 s) and silently drop the remaining 2 segments. Confirmed via
operator mpv drag-drop test of BOTH the canonical 2026-05-15 closure
fixture and the 2026-05-16 UAT-produced fixture — both exhibit the
same broken playback.
The 2026-05-15 "operator-confirmed clean Chrome playback" assessment
was insufficient: it verified the file plays without freezing but did
not measure total duration. Phase 1's primary deliverable
(REQ-video-ring-buffer / SPEC §10 #7) is therefore NOT satisfied.
Fix path chosen by user: ts-ebml (parse) + webm-muxer (write) to
replace mergeVideoSegments file-concat with real single-EBML remux.
Will land as Plan 01-08 via fresh /gsd-plan-phase ceremony.
RED test landed in tests/offscreen/webm-playback.test.ts (2 new
assertions on container-format-duration + ffmpeg-full-decode-duration).
2 failures, 53 baseline tests still GREEN.
Option C port-lifecycle refactor (debug session
empty-archive-port-race, commits 674c415..f0871c0) DID land cleanly
and is retained — that fix was orthogonal and correctly resolved the
silent-empty-archive symptom that previously masked this deeper bug.
Debug session: .planning/debug/d13-multi-ebml-concat-unplayable.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Closes the second debug session in Phase 1's life (after d12). Both
sessions resolved fast — ~30 min for d12, ~15 min for the RED-test
landing in this one — because the planner had explicitly pre-staged
contingencies (D-12 ffprobe gate + D-13 restart-segments skeleton)
for the assumptions RESEARCH.md flagged HIGH-risk. Neither was a
planning oversight; both were the documented HIGH-risk assumption
activating as expected.
Changes:
- Moved .planning/debug/webm-playback-freeze.md →
.planning/debug/resolved/webm-playback-freeze.md (status:
root-cause-confirmed → resolved).
- Added the Resolution section: root-cause one-liner, applied-fix
description, the 5 files-changed list, the 6 fix-a3 commit hashes,
the in-tree verification matrix, and the explicit operator
next-step (re-run ./smoke.sh, verify Chrome playback +
ffmpeg-clean stderr + the 2 webm-playback.test.ts assertions
flipping GREEN, then Phase 1 closes).
- Updated STATE.md frontmatter `stopped_at`, the Decisions log
with a [Phase 01-07-debug-a3] entry summarising D-13 activation
+ the type renames + the retired old-API surface, and the
Session Continuity block (timestamp, stopped_at narrative,
resume-file pointer).
Phase 1 close is still pending operator regen of
tests/fixtures/last_30sec.webm. REQ-video-ring-buffer must not
be marked complete by this commit — Plan 07's §10 #7 acceptance
criterion owns that and only the in-Chrome playback + ffmpeg-clean
stderr (against a freshly regenerated fixture) can close it.
- Mark .planning/debug/d12-blob-port-transfer-fails.md as
status: resolved; fill in the Resolution section with the
applied fix (5 commit hashes, files changed), verification
output (15/15 tests, tsc clean, vite build green, zero
as-any/ts-ignore in fix-touched files), and inline answers
to the specialist-review questions raised by the planner.
Move the file to .planning/debug/resolved/.
- Update STATE.md frontmatter (stopped_at) + Decisions log
+ Session Continuity to record the D-12 fix landing and
the open Plan 07 ffprobe gate (still requires operator
smoke.sh + ffprobe re-run before Phase 1 can close).
- Land smoke.sh — the operator's D-12 acceptance-gate harness
that surfaced the original failure. Self-contained: dedicated
/tmp/mokosh-smoke-profile, auto-accept desktop-capture picker,
Downloads polling, ffprobe gate, fixture staging.
REQ-video-ring-buffer remains NOT-complete — Plan 07 owns it,
operator must re-run ./smoke.sh to verify the fix end-to-end
in Chrome.
Refs: debug session d12-blob-port-transfer-fails (resolved).
Plan 05 closes: src/background/index.ts is now a pure coordinator with
zero video-buffer state, T-1-04 mitigations on both onConnect and
onMessage, OFFSCREEN_READY handshake, port-based buffer fetch via
'video-keepalive' port, IDB orphan cleanup on install, and chrome.offscreen.hasDocument()
re-sync on SW respawn (audit P1 #8). 9/9 vitest tests still green;
tsc clean; no as any / @ts-ignore.
REQ-video-ring-buffer stays pending — Plan 07's ffprobe gate owns the
final completion marker.
- Add 01-03-SUMMARY.md documenting RED -> GREEN gate (Plan 02 tests now
pass), 3 Rule-3 auto-fixes (OffscreenLogger inline, defensive
bootstrap, SW dead-code removal), and Plan 04 / 05 handoff notes.
- Update STATE.md: advance plan counter to 4 of 7 (43%), append
metrics + 3 execution decisions, record session.
- Update ROADMAP.md: mark Plan 01-03 [x] complete.
REQ-video-ring-buffer remains NOT complete — still pending Plans 04
(port keepalive) and 07 (ffprobe acceptance gate).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Plan 01-01 (Wave-0 doc cascade) complete. Six tasks landed atomically
in commits 125c032, fb88830, b1ed2cb, 597d967, 32bc996, 4a5194e. Every
code-touching plan in Phase 1 (01-02..01-07) now reads a consistent
baseline: getDisplayMedia replaces tabCapture in DEC-003; long-lived
port replaces alarms in DEC-010; manifest.json carries the final
Phase-1 permissions set (desktopCapture, activeTab, downloads,
scripting, storage, offscreen).
SUMMARY: .planning/phases/01-stabilize-video-pipeline/01-01-SUMMARY.md
After gsd-plan-phase 1: 7 plans across 7 waves. All gates pass:
- Plan-checker (sonnet) VERIFICATION PASSED on iteration 1
- Decision coverage gate (gsd-sdk): 19/19 decisions covered
- Requirements coverage: REQ-video-ring-buffer in all plans
- Security threat model: T-1-01/02/04 mitigated; T-1-03 accepted residual
Known non-blocking gaps:
- gsd-sdk roadmap.annotate-dependencies failed (t.trim is not a function);
ROADMAP plan-list annotations skipped. Phase 1 plan-list in ROADMAP.md
remains accurate; this is a cosmetic nice-to-have for cross-cutting
constraint visibility.
- 1 plan-checker warning (stale wave prose in Plan 03/04 objectives) was
fixed during decision-coverage revision.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
