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v0.2.39.0 feat: a test replay opens in the learning-replay composition, with one transport and the Learning summary button (Cycle 0051) - #123
Refs #122 (Cycle 0051, a feature cycle). Plan: the body of #122, approved by /autoplan (O5).
Summary
A saved test replay now opens in the learning-replay composition of the v9 PNG's region 2, as a browser replay already does: the Study pane closes, the Application pane shows the recorded test output above the recorded-source tab, Run and Debug shows the recorded stop, and the Learning summary stands in the chat's place.
Composition and routing (DS-A, DS-F, DS-G): Open replay and a Saved studies choice enter the summary composition; learner entries take a ticket and a turn so the latest one wins; the agent's codebook_playback open of a test replay stays refused (MCP 1.8 unchanged); node-history moves from the Learning summary and the bottom panel are accepted, refused during a browser replay, and late or unknown moves are refused; a failed open gives the Study pane back on Saved studies; leaving the summary composition withdraws the summary's document for both families (9d745e0, found by this ship's review).
The Learning summary of a test replay (DS-B): one reading order (title, result, capture reason, question, summary, sequence diagram, moment, values hint, understanding, events), the selected step marked on the diagram by attribute (no redraw), Step <n> · <label> headings, Show more on the long texts, and a capped diagram height.
One transport for both replay families (DS-C, DS-D, C2): #recording-transport serves both; test replays get Previous and Next event, <t> s / <total> s, keys by event and stop, Home and End by sequence from any page, and their own six shortcut entries; the bottom panel reads Learning replay and shows only the transport.
5A (DS-E): a Learning summary button in the transport's status row shows a hidden summary and keeps the moment, the debugger frame and the reading position, for both families.
Release: 0.2.39.0; the page's new branches stand in helpers so the measured health gate stays at the baseline (5500fba).
Compatibility: MCP API 1.8, the bundled skill and every stored format unchanged.
Test Coverage
CODE PATHS (28) USER FLOWS
[+] studyWorkspace.ts composition, routing, exits [+] Open replay / Saved studies / Return to Live / 5A
├── [★★★] entries per host, agent refusal, presentation ├── [★★★] composition per entry, VS Code and Cursor harnesses
├── [★★★] routing from summary and bottom panel, refusals ├── [★★★] 5A paused (both families) and playing
├── [★★★] latest wins, two entries, overtaken notice ├── [★★] Return to Live gives the summary its placeholder (9d745e0d)
├── [★★★] retirement (another study, Return to Live), timers └── [★★] browser study from the summary leaves the composition
└── [★★] summary cleared on leaving the composition
[+] studyHtml.ts summary content, shared transport, keys (Reader DOM, 282 cases)
├── [★★★] order, mark, Show more, first viewport, markup as text, four themes' contrast
├── [★★★] seven move controls, order per family, browser control list, keys, IME and chords
└── [GAP] browser Replay from start and Pause clicks (untested on main too; moved by the refactor)
COVERAGE: 26/28 paths (93%) | value-weighted 93% | GAPS: 2 (pre-existing)
Tests: 435 test files (the new host file studyWorkspaceTestReplayComposition.test.ts, 31 tests; 47 new Reader DOM cases; "moves with D8" pins converted with reasons).
Coverage: 93% value-weighted (93% including 0 weakly covered paths).
Test value: 0 tests written by the audit, 0 rejected, 0 extended by the audit; 2 tests added or extended with the fix 9d745e0 (red before, green after).
Proposed (carried): a browser Replay from start row and a Pause row in the browser step-control case.
Tests ran: tests 6,696 (6,690 pass, 6 skipped, 0 fail) on the final tree.
Pre-Landing Review
Four review passes (the third pass's record was lost to a detached HEAD and re-run as pass 4 on the same tree). Feature cycle rule (AGENTS.md): non-critical findings are answered Skip and carried to the next cycle; one finding that failed this PR's own acceptance (AC15, AC8 (e): a test replay's departure left the Learning summary's document) was fixed in 9d745e0 with tests that fail without it.
Carried (named in #122's closing comment for the next cycle): fixed-time waits in three host tests; two JSDoc blocks above the wrong functions after the refactor; an unanswered one-replay-at-a-time notice holds the entry turn; Close and Return to Live do not invalidate a waiting entry; a stale-revision Saved studies open can leave an empty summary composition; Open replay with the summary and the bottom panel hidden re-shows no UI; a browser study from a test replay's summary bypasses the editor-area deferral; showLearningSummary's identity changes during an open (STALE_PRESENTATION); every move failure is worded as a debugger failure; forgetUnopenedComposition and a Reload racing another open() can leave or blank the summary; tagTestReplayDrawing binds marks by SVG sibling order; Show more's expanded state persists across replays; nodeHistoryRefusal is not sanitized at publish; untested state cells (browser replay × another study, × failed open); stale comments. Closed with evidence: an older entry's failed open reporting late (a superseded catch returns superseded); the preview retry's revision (intended).
Gate edits: 37 listed, 34 read, 0 findings (all "moves with D8" pin conversions with their reasons, and the package test's expected version).
Outside review (Codex gpt-6-astra): structured review GATE PASS in every pass (P2 only); adversarial challenge completed, NO_FINDINGS in the last pass (pass 2's response was unverified by the parser).
Exploratory QA
Functional surface, repository-native commands, on the final reviewed tree 48c3c846: capture 005 node --test extension/dist/tests/studyWorkspaceTestReplayComposition.test.js (pass) and capture 006 node extension/scripts/study-bootstrap-qa.mjs verify (282 cases, 0 errors, about 25 s, inside the 10-minute reader-dom job). Earlier captures 001 to 004 are superseded. Native pixels, focus and scroll are N51's (after this PR opens).
Design Review
No frontend files changed by the scope detector's patterns (the page script is TypeScript template strings) — design review skipped; the UI is covered by the Reader DOM cases and N51.
Eval Results
No prompt-related files changed — evals skipped.
Scope Drift
Scope Check: CLEAN — every changed file is in #122's Files table, plus the harness and describeNodeTestReplay.ts.
Plan Completion
Tasks 1–9 and 11–14 (composition, summary content, one transport, routing, bottom panel, 5A, pins, README and CHANGELOG, C2 keys, states, exits)
AC13: a recording's load retiring a test replay is pinned by studyWorkspace.test.ts (opening a recording retires a saved Node stop)
Pending after this PR opens: task 10 / AC8 (N51 in VS Code and Cursor), required CI, hosted CodeRabbit approval
Acceptance edits: baseline unavailable (the plan is a GitHub issue body, not tracked in the repository).
Verification Results
Plan checks: P1 Reader DOM timing PASS (about 25 s of a 600 s job); P2 the 15-check exact-tree gate on the final tree: see Test plan; P3 N51: NOT RUN yet (runs on this PR's candidate before the merge, per the plan's delivery order).
TODOS
No TODOS.md (owner rule): carried items go to #122's closing comment and the next cycle's Issue.
Documentation
Scope: committed branch changes since 8dd675b plus staged/unstaged state (working tree clean), checked against the docs roots README.md, extension/README.md, CHANGELOG.md and extension/skills/codebook/SKILL.md. Result: current, no edits. The two later code commits (the studyHtml.ts helper refactor and the open() clearing of the Learning summary on leaving the summary composition) change no documented behavior; extension/README.md says nothing about the summary's content after Return to Live or after leaving a replay, and its Return to Live wording does not contradict the code. Debt: none found.
Test plan
The exact-tree gate of #122 AC9 (15 checks) on the final tree (d2753786, HEAD ac27cc1a):
The first gate run on this branch failed test:package (the release commit missed EXTENSION_VERSION; amended) and health (two page handlers above the measured baseline; fixed by 5500fba, behavior unchanged, 282 Reader DOM cases).
The second run failed one test:package test: the new Reader DOM block's counter was named like a revision of its own (regionTwoRevision = 200), which the package test refuses. 12d8f43 renames it to regionTwoStep (4 lines in the test script). Steps 9 and 11 reviewed tree 48c3c846 (HEAD b32d8eca); for this test-only rename they were not dispatched again (owner direction in AGENTS.md: skip a step that plainly adds nothing); the checks it touches ran again on the final tree.
…A, DS-F, DS-G)
A selected or opening test replay holds the summary composition a browser
replay has: the Study pane closes, the Learning summary stands in the
chat's place, and the bottom panel reads Learning replay. Moves from the
summary and the bottom panel are routed, the latest learner entry wins,
a move's debugger failure carries the open path's recovery clause, the
host projects the history's first and last sequence and a move refusal
for the transport, Restore works in the composition, and a failed open
of another replay pauses the shown one.
Tests: 27 composition host tests; the Study-pane pins (moves with D8,
F123) changed with their reasons; harness seams receive/receiveContext
follow the composition and constrainStudyGrid takes a group count.
Refs #122
…051, DS-B to DS-E, C2)
The Learning summary shows a test replay in region 2's order with a
step heading and the drawing's step mark (moved by attribute, so the
diagram keeps its scroll), three-line clamps with Show more, and the
summary's focus fallback (step heading, then title). The shared
#recording-transport serves both families: event steps for a test
replay, its keys by event, stop and first or last sequence, a status
line of state and refusals only, and the browser's recovery hidden.
The bottom panel's transport adds 5A's Learning summary button. The
golden's attribute order no longer depends on a race.
Reader DOM: 46 new cases in study-bootstrap-qa.mjs (each case group
recorded on its own when it throws, so a red run reports every group);
the moves-with-D8 pins changed with their reasons.
Refs #122
… only its replay, and the summary reads the replay alone (Cycle 0051)
- Local CodeRabbit CLI (major): two entries at once on a closed reader no
longer end with no replay; entries take turns entering the composition
and the latest one opens.
- Local CodeRabbit CLI (minor): the one-replay-at-a-time answer closes the
browser replay it named, for the latest entry only.
- Native smoke (VS Code 1.142.0): the summary leaves out the saved browser
study behind a test replay, and the recorded-source tab in front of any
group confirms the layout in the summary composition.
- Tests: three host tests and one Reader DOM case, red on a1a7a55; two
case groups publish their own starting state; one assertion that the
harness's ordering made pass is removed.
Refs #122
…ate's scans (Cycle 0051)
The chord and IME case keeps its keys in short-named constants, because a quoted key name in a key field read as a secret-named value. The two timer-retirement waits and the superseded-presentation wait state why their elapsed time is the contract (gstack-timing-ok).
…test replay exceptions stand in helpers of their own (Cycle 0051)
The measured health gate counted the click handler and the message listener above the baseline: the test replay branches raised their complexity over main's, and the transport's two new renderers were high-CRAP functions. Each piece now stands in a helper under the CRAP limit, the click handler and the message listener are below main's complexity, and the page behaves as before (282 Reader DOM cases, page tests).
…ent, as a browser replay's does (Cycle 0051)
Return to Live, a browser study chosen from the summary, and any other step out of the summary composition left the test replay's document in the Learning summary, whose messages the reader no longer accepted, so a stale summary with controls that answered nothing stood beside the chat. Leaving the summary composition now clears the summary for both replay families. Found by the /ship review (Codex structured, pass 2); both tests fail without the fix.
…om the first message (Cycle 0051)
The block's counter was named and started like a revision of its own (regionTwoRevision = 200), which the package test refuses: every revision is revisionAt(n), and only the Saved studies cases keep a counter of their own. The counter now reads as the step it is.
Reviewing files that changed from the base of the PR and between ac27cc1 and 3bf2674.
Files selected for processing: 2
CHANGELOG.md
extension/README.md
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Each user-visible behavior that an entry names needs a sentence in the packaged README (extension/README.md).
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CHANGELOG.md: 2
31-31: 検証記録の状態と件数を明確にしてください。
unchanged since commit は source revision を示しますが、working tree の clean / dirty 状態を示しません。five Reader DOM checks と measured health gate も、全コマンド、各件数、結果を再現できる形ではありません。pnpm test は 6,690 passed / 6 skipped / 0 failed のように pass と skip を分けてください。N51 の VSIX、requests、take、private storage の録画は、利用可能性を個別に記録してください。CI が未完了なら、再実行予定ではなく未実施として記録してください。
Selecting a browser study can unexpectedly change the maximized panel layout, and message regressions may evade tests. These bounded issues should be followed up before relying on the new replay flow.
Security architecture risk: Low · up to 3bf26
Existing restrictions on agent control and replay identity remain in place. No new privilege expansion was identified, but overlapping opens, preview retries, and native-editor recovery are not exhaustively verified.
Retained concerns
No architecture-level concerns identified.
Security review details
Security Blast Radius
inferred — The demonstrated expansion is presentation and control within the current editor workspace: test replay gains the existing summary and bottom-panel surfaces. The inspected routes do not establish additional agent authority or cross-service exposure.
Trust Boundaries and Controls
observed — Renderer ownership is checked both before and after initialization. Navigation must identify the selected test history, and native inspection requires a recorded stop with matching verified captured source. These controls remain between webview requests and source/debugger presentation.
Resilience and Maintainability Implications
observed — Preview-conflict recovery uses a modal learner choice and recursively retries the requested history without retaining the original entry ticket. This retry structure predates the PR; the change additionally routes Saved studies through it. A newly introduced security consequence was not established.
Hardening Proposals
proposed — Carry the original entry identity through preview resolution and revalidate it before retrying, so recovery explicitly preserves cancellation and latest-selection ownership rather than acquiring a fresh ticket for an older request.
Pre-merge checks: 5
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Inline comments:
Review comments at @CHANGELOG.md:
- Line 31: 「Checked so far」節の検証記録を、実際の証跡に基づいて更新してください。6,696 testsと `node
extension/scripts/study-bootstrap-qa.mjs verify` の282
casesについて実行コマンドと件数を記載し、candidate commit、working-tree
state、artifactの有無、N51・Windows・Linuxの未実施状況、および対応するevidence linkを追記してください。同じ情報を
`extension/README.md` の検証記録にも同期してください。
Review comments at @extension/README.md:
- Line 76: READMEの失敗時の説明を更新し、失敗したオープンではStudy paneを復帰し、Saved
studiesに失敗内容を一度だけ通知することを明記してください。既存の失敗時の説明にこの通知契約を加え、CHANGELOG.mdと整合させてください。
Review comments at @extension/src/studyWorkspace.ts:
- Around line 23302-23303:
ブラウザー学習選択後、エディター領域の再表示を待っている間に要約構成を解除すると、最大化されたパネルが閉じられます。該当する履歴リクエスト処理で、isLatestHistoryRequest(request)
が真でも studyAwaitsEditorArea() が真なら leaveEmptySummaryComposition()
を呼び出さないようにしてください。待機終了後の open() は showStudyAwaitingEditorArea に任せてください。
Review comments at
@extension/src/tests/studyWorkspaceTestReplayComposition.test.ts:
- Line 195: studyWorkspaceTestReplayComposition.test.ts
の期待値が実装側の定数を参照しているため、文言の変更を検出できません。SUMMARY_PLACEMENT_OFFER と
STUDY_REMOVAL_REFUSALS.nodeHistory を使う比較を、それぞれ現在の表示文言を表す文字列リテラルとの比較に更新してください。
Review comments at @extension/src/ui/studyHtml.ts:
- Around line 787-796: JSDoc
が別の宣言に結び付いているため、各ブロックを対応する関数の直前へ移してください。playTestReplayControl、testReplayTitle、focusSummaryStart
の各 JSDoc をそれぞれの関数に付け、隣接する宣言や変数には付けないでください。各ブロックには関数の目的、呼び出し元、具体的な @example
を保ってください。
Review comments at @extension/src/utils/describeNodeTestReplay.ts:
- Around line 38-43: playingStatus の前にある「The control under a clamped
question...」の説明コメントを、showMore の直前へ移動してください。playingStatus と pausedStatus
にはステータス行の説明コメントを対応させ、showMore と showLess には制御の説明が付く配置にしてください。
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Follow PRODUCT_GOAL.md's design target and the approved design, as amended by the required reads and the active cycle.
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ast-grep (0.45.3)
extension/src/ui/studyHtml.ts
[warning] 3617-4285: Check origin of events
Context: window.addEventListener('message', (event) => {
const message:
| StudyViewMessage
| PresentationPoseCapture
| PresentationPoseRestore
| OpenRequestSettled
| StudyFilesCopied = event.data
if (message?.type === 'open-request-settled') {
settleOpenRequest(message)
return
}
if (message?.type === 'study-files-copied') {
showStudyFilesCopied(message)
return
}
if (message?.type === 'capture-presentation-pose') {
capturePose(message)
return
}
if (message?.type === 'restore-presentation-pose') {
restorePose(message)
return
}
if (message?.type !== 'study') return
const incoming = message.presentation
if (
poseTransaction &&
(incoming?.state !== 'applying' ||
incoming.presentationId !== poseTransaction.request.presentationId ||
incoming.presentationControlRevision !==
poseTransaction.request.expectedRevision)
)
poseTransaction = undefined
current = message
// The summary composition lays out either replay family alike (Cycle 0051, DS-A); recording is read for a browser recording's own parts only.
const { model, recording } = message,
replayFamily = replayFamilyOf(message),
contentTab = message.contentTab ?? model.selection.tab
document.body.dataset.contentTab = contentTab
document.body.dataset.replay = String(Boolean(replayFamily))
document.body.dataset.replayFamily = replayFamily ?? ''
text('reader-kind', replayFamily ? 'Learning summary' : 'Codebook study')
const shouldRevealFollowedPause =
contentTab === 'live' &&
!replayFamily &&
model.selection.follow &&
Boolean(model.observation) &&
model.observation?.id !== revealedFollowedObservationId &&
window.innerWidth <= options.compactReaderMaxWidthPx
// On a narrow Live reader, make captured evidence the first visible content without hiding pane controls from the learner.
if (contentTab !== selectedContentTab) {
if (
(contentTab === 'recording' ||
(contentTab === 'live' &&
window.innerWidth <= options.compactReaderMaxWidthPx)) &&
!readerOptionsOpenedByLearner
)
readerOptions.removeAttribute('open')
if (contentTab === 'overview' && selectedContentTab === 'live')
readerOptions.setAttribute('open', '')
selectedContentTab = contentTab
readerOptionsOpenedByLearner = false
}
const mode = message.presentation,
applying = mode?.state === 'applying'
if (mode) {
document.body.dataset.presentation = mode.mode
const descriptor = options.presentations.find(
(descriptor) => descriptor.mode === mode.mode,
)
text(
'presentation-caption',
replayFamily
? 'Recorded application and source stay in the editor; learning summary stays in the sidebar.'
: (descriptor?.description ?? ''),
)
text('presentation-status', presentationStatus(mode))
for (const control of Array.from(
document.querySelectorAll('[data-presentation]'),
)) {
control.disabled = applying
if (control.dataset.presentation === 'save-preference')
control.hidden =
Boolean(replayFamily) ||
mode.preference.status !== 'failed' ||
!mode.layoutConfirmed
}
button('arrange')!.textContent = Restore ${descriptor?.title ?? 'presentation'} layout
}
// A native sidebar cannot use the retired central explanation pane's enlargement action.
button('enlarge-context')!.hidden = Boolean(replayFamily)
button('read-context')!.textContent = replayFamily
? 'Summary'
: 'Explanation'
button('read-context')!.setAttribute(
'aria-label',
replayFamily ? 'Read learning summary' : 'Read explanation',
)
button('focus-context')!.textContent = replayFamily
? 'Focus learning summary'
: 'Focus explanation'
button('return-wiki')!.hidden = !message.repositoryReturnAvailable
button('open-article')!.hidden =
!message.repositoryArticleAvailable ||
Boolean(message.repositoryReturnAvailable)
element('next-scenario').hidden = Boolean(replayFamily)
element('study-controls').hidden = Boolean(replayFamily)
// A visible bottom panel owns transport; closing it restores the summary fallback.
const isTransportShown = showsTransport(message)
offerTransport(isTransportShown)
renderFamilyTransport(message, isTransportShown)
if (recording) {
const range = recording.range,
pending = recording.cleared && recording.readiness === 'loading'
const timeline = recording.historyTimeline ?? {
status: 'unknown' as const,
}
const presentedMs = recording.presentedMs
const selectedHistoryGap =
timeline.status === 'mapped' &&
presentedMs !== undefined &&
!timeline.recordedPoints.includes(presentedMs) &&
timeline.gaps.some(
(gap) => presentedMs >= gap.startMs && presentedMs < gap.endMs,
)
// The transport's status regions carry text only in the pane that shows the transport; in the other pane they stay as empty as {@link offerTransport} left them.
if (isTransportShown) {
text(
'recording-status',
recording.readiness === 'failed'
? 'Playback stopped — presentation unavailable'
: pending
? 'Loading matching image, source and values…'
: ${recording.mode === 'playing' ? 'Playing' : 'Paused'} · ${recording.recordingStatus ?? 'Loading recording'}${selectedHistoryGap ? ' · Not recorded at this moment' : ''}${recording.applicationCovered ? · ${options.applicationCovered.label} : ''},
)
text(
'application-covered-remedy',
coveredAnnouncement(recording, message.loading),
)
}
text(
'playback-position', ${recording.presentedMs === undefined ? 'No position presented' : Presented ${seconds(recording.presentedMs)}}${range ? / ${seconds(range.endMs)}${range.endKnown ? '' : ' — last verified time; end unknown'} : ''},
)
text(
'playback-pending',
pending
? Requested ${recording.requestedMs === undefined ? 'saved position' : seconds(recording.requestedMs)}. Waiting for a matching presentation.
: '',
)
const failed = recording.readiness === 'failed',
diagnostic = [
recording.reason,
recording.recordingReason,
recording.contextReason,
recording.missing,
]
.filter(Boolean)
.join('\n')
// Keep recovery readable while preserving copyable technical detail and nonfailed partial-recording warnings.
text(
'playback-reason',
failed ? options.playbackFailureRecovery : diagnostic,
)
// Unloaded native values are guidance, not an error; a failed moment shows only its recovery.
if (isTransportShown)
text(
'playback-hint',
!failed && recording.nativeValuesUninspected
? options.nativeValuesHint
: '',
)
// The hint comes with a control that opens Run and Debug and expands Variables in one click.
offerShowVariables(
'playback-show-variables',
!failed && Boolean(recording.nativeValuesUninspected),
options.replayTransportFocus,
'recording-transport',
)
text('playback-diagnostic', failed ? diagnostic : '')
element('playback-diagnostics').hidden = !failed || !diagnostic
const toggle = element('playback-toggle')
if (toggle instanceof HTMLButtonElement) {
const pause = recording.mode === 'playing' || pending
toggle.dataset.playback = pause ? 'pause' : 'play'
toggle.textContent = pause ? 'Pause' : 'Play'
toggle.setAttribute(
'aria-label',
pause ? 'Pause playback' : 'Play recording',
)
toggle.title = pause ? 'Pause playback' : 'Play recording'
toggle.disabled =
!pause &&
(recording.readiness !== 'ready' ||
!range ||
recording.presentedMs === range.endMs)
}
for (const direction of ['previous', 'next'] as const) {
const control = element(${direction}-moment)
if (control instanceof HTMLButtonElement)
control.disabled = recordedStep(direction) === undefined
}
const start = document.querySelector(
'[data-playback="start"]',
)
if (start) start.disabled = !range
const playhead = element('playhead')
if (playhead instanceof HTMLInputElement) {
playhead.disabled = !range
playhead.min = String(range?.startMs ?? 0)
playhead.max = String(range?.endMs ?? 0)
if (!scrubbing)
playhead.value = String(recording.presentedMs ?? range?.startMs ?? 0)
playhead.setAttribute(
'aria-valuetext',
recording.presentedMs === undefined
? 'No recorded position presented'
: ${seconds(recording.presentedMs)} presented${range?.endKnown === false ? '; recording end unknown' : ''},
)
}
const mapped =
timeline.status === 'mapped' && range && range.endMs > range.startMs
const marks = mapped
? {
startMs: range.startMs,
endMs: range.endMs,
gaps: timeline.gaps,
recordedPoints: timeline.recordedPoints,
}
: undefined
renderTimelineCoverage(
element('history-coverage'),
element('history-coverage-label'),
marks,
browserCoverageLegend(marks),
)
}
const item = model.progressByItem.find(
(value) => value.id === model.selection.itemId,
)
const heading = readerHeading(message, item?.title)
text('title', heading)
// The heading is clamped to two lines in a narrow replay; its tooltip keeps the whole title for the pointer.
element('title').title = heading
const selectedProfile = message.profiles.find(
(profile) => profile.id === model.selection.profile,
),
liveProfile = message.profiles.find(
(profile) => profile.id === message.liveProfile,
)
text(
'profile-description',
model.selection.profile === 'repository-browser'
? 'Ask your agent to prepare a new operation in this article. Reading saved configuration never starts it.'
: (selectedProfile?.description ?? 'Scenario unavailable.'),
)
// Offline replay prioritizes its own controls; an independently active runtime keeps its explicit stop/return strip.
text('runtime', liveStripStatus(message, liveProfile?.title))
text(
'deadline',
message.deadlineAt && !message.study?.terminal
? Study wall limit: ${new Date(message.deadlineAt).toLocaleTimeString()}. History remains readable after expiry.
: 'Reading history does not restart execution.',
)
const outcome = message.study?.studyOutcome
const scenario = model.scenarioProgress
const outcomeLabel =
outcome === 'demonstrated'
? 'Observation saved'
: outcome === 'partial'
? 'Partial evidence'
: outcome === 'not-demonstrated'
? 'Evidence not demonstrated'
: 'Evidence checks pending'
const endedProgress =
message.study?.terminal && !replayFamily
? Last observed stop: ${scenario?.lastObservedTitle ?? 'none'}.
: ''
const missingEvidence =
message.study?.terminal && scenario
? [
scenario.missingImageTitles.length
? Missing images: ${scenario.missingImageTitles.join(', ')}.
: '',
scenario.unverifiedLinkCount
? ${scenario.unverifiedLinkCount} runtime connections unverified.
: '',
]
.filter(Boolean)
.join(' ')
: ''
element('study-state').hidden =
!message.study ||
Boolean(recording && document.body.classList.contains('moments-only'))
text(
'study-state',
message.study
? ${recording ? 'Recorded study (whole run)' : message.study.terminal ? 'Study ended' : 'Study in progress'} — ${outcomeLabel} · runtime: ${message.study.finalOutcome} · history: ${message.study.historyOutcome}.${endedProgress}${missingEvidence ? ${missingEvidence}: ''}${message.study.reason ? ${message.study.reason} : ''}
: '',
)
const savedRecording = message.study?.recordingSave
const recordingLabel = !savedRecording
? 'Recording not verified in this reader. Open Recording to inspect its saved evidence.'
: savedRecording.status === 'partial' ||
savedRecording.status === 'failed' ||
savedRecording.contextStatus === 'failed'
? Recording incomplete: ${savedRecording.reason ?? savedRecording.contextReason ?? 'Matching recording evidence is unavailable.'} Use Retry storage / refresh or open Recording to inspect retained evidence.
: savedRecording.status === 'finalized' &&
savedRecording.contextStatus === 'saved'
? 'Recording saved.'
: savedRecording.status === 'recording'
? 'Recording in progress; saving is not complete.'
: savedRecording.status === 'finalized'
? 'Recording frames saved; matching source and explanation context is pending.'
: 'Recording unavailable for this study.'
// Without a study, and in the bottom panel during a replay, the line is empty and takes no room; it stays rendered, so the first label is a change of a status region that exists.
text(
'recording-save-state',
message.study && !isReplayInBottomPanel(message) ? recordingLabel : '',
)
element('evidence-details').hidden = !message.study
hideSavedStudyForTestReplay(replayFamily)
text('evidence-summary', Evidence status · ${outcomeLabel})
// Why the last run did not start comes first; Retry storage / refresh cannot fix it, so it does not count for that button.
text(
'errors',
(message.runRefusal
? [message.runRefusal, ...message.errors]
: message.errors
).join('\n'),
)
// A layout notice or a refused control is nothing Retry storage can answer.
button('retry')!.hidden =
message.errors.length <= (message.unretryableErrorCount ?? 0) &&
savedRecording?.contextStatus !== 'failed' &&
savedRecording?.status !== 'failed' &&
savedRecording?.status !== 'partial'
button('continue')!.disabled =
applying || message.busy || message.loading || !model.continueArguments
// A selected Node history masks the live application even while following, so leaving it is always available.
button('return-current')!.disabled =
!message.nodeHistory &&
(!model.currentParticipant || (model.matching && model.selection.follow))
button('stop')!.disabled =
message.busy || !message.liveState || message.liveState === 'stopped'
button('click')!.disabled = applying || message.busy || !message.canClick
button('click')!.textContent = message.nextAction
? ${message.nextAction.title} once
: 'No action available'
button('stop')!.textContent = liveProfile
? Stop ${message.liveTitle ?? liveProfile.title}
: 'Stop'
// A recorded moment another tab covers is recorded and only hidden: the line says that and what brings it back, and the selected observation stays readable.
const isApplicationCovered =
Boolean(recording?.applicationCovered) && !message.loading
element('loading').hidden = !message.loading && !isApplicationCovered
text(
'loading',
recording?.readiness === 'failed'
? 'Recorded context unavailable. Reload after resolving the reported problem.'
: isApplicationCovered
? options.applicationCovered.remedy
: 'Loading the selected observation…',
)
element('selected').hidden = message.loading
hideArticleForTestReplay(message)
for (const tab of Array.from(
document.querySelectorAll('[data-tab]'),
)) {
const selected = tab.dataset.tab === contentTab
tab.setAttribute('aria-selected', String(selected))
tab.tabIndex = selected ? 0 : -1
}
element('overview').hidden = contentTab !== 'overview'
element('live-content').hidden = contentTab === 'overview'
element('live-content').setAttribute(
'aria-labelledby',
contentTab === 'recording' ? 'recording-tab' : 'live-tab',
)
text('overview-text', item?.overview ?? 'Source unavailable.')
text(
'observation',
recording
? model.observation
? Recorded observation · ${seconds(model.observation.elapsedMs)}${recording.pauseConfirmed ? ' · pause verified' : ''}${recording.rendererConfirmed ? ' · original renderer receipt available' : ''}
: 'No source or values were observed by this recorded position.'
: !model.observation && !model.currentSourceAvailable
? 'Current source unavailable — read a captured observation or retry.'
: model.observation
? ${model.matching ? 'Observed in this run — current inspected pause' : 'Captured observation — history'} · ${new Date(model.observation.capturedAt).toLocaleString()}
: message.study?.terminal
? 'Not observed before this study ended — source-derived material only'
: 'Not observed — source-derived material only',
)
text(
'source-version',
recording && !model.observation
? 'No captured source at this time. The source pane shows an explicit placeholder.'
: !model.observation && !model.currentSourceAvailable
? 'No current source version could be verified.'
: // A stop the debugger moved names the line it paused on and the line it was declared on. ${model.observation ? 'Captured source' : 'Source-derived document'} · line ${model.source.line}${model.sourceDeclaredLine === undefined ? '' : (declared on line ${model.sourceDeclaredLine})} · ${model.source.hash.slice(0, 12)},
)
text(
'understanding-label',
model.selection.profile === 'repository-browser'
? 'understand'
: 'I understand this source revision',
)
element('understanding-description').hidden =
model.selection.profile !== 'repository-browser'
text(
'source-drift',
!model.currentSourceAvailable
? 'Current source unavailable. Historical source and understanding are retained.'
: model.sourceChanged
? model.selection.profile === 'repository-browser'
? 'Review needed — a cited source changed. Historical understanding still refers to the complete captured citation set.'
: 'Review needed — source changed. This is the captured older revision.'
: '',
)
const checkbox = element('understood')
// Native disabled blurs a focused checkbox; saving retains its focus and exposes the temporary ARIA state.
if (checkbox instanceof HTMLInputElement) {
checkbox.checked = model.selectedUnderstanding.understood
checkbox.disabled = message.loading || !model.selectedUnderstanding.known
checkbox.setAttribute(
'aria-disabled',
String(message.saving || checkbox.disabled),
)
}
text(
'save-state',
message.saving
? 'Saving…'
: recording && !model.observation
? 'Seek to an observed moment to check understanding.'
: !model.selectedUnderstanding.known
? 'Understanding storage unavailable'
: model.selectedUnderstanding.understood
? Learner marked understood · ${model.selectedUnderstanding.at ?? ''}
: 'Checked only by you; execution never changes this.',
)
text(
'progress',
!model.currentSourceAvailable
? 'Current source unavailable — historical understanding retained.'
: ${model.understoodCount} of ${model.progressByItem.length} understood for current source · ${model.reviewCount} needs review,
)
// In a replay the selected observation is the projection's: an explanation shown before its saved time says when it was saved.
const interpretations: ShownInterpretation[] =
model.observation?.interpretations ?? []
replace('interpretations', [Boolean(recording), interpretations], () =>
interpretations.length
? interpretations.flatMap((value) => {
const paragraph = document.createElement('p')
paragraph.className = 'interpretation'
paragraph.textContent = value.text
if (!value.savedLater) return [paragraph]
const note = document.createElement('p')
note.className = 'muted'
note.textContent = savedNote(value.savedLater)
return [paragraph, note]
})
: [
document.createTextNode(
recording
? 'No explanation was available by this recorded time.'
: 'No agent explanation attached. Inspect captured state in the editor debugger.',
),
],
)
const later = recording?.laterInterpretations ?? []
element('later-annotations').hidden = !later.length
replace('later-interpretations', later, () =>
later.map((value) => {
const paragraph = document.createElement('p')
paragraph.className = 'interpretation'
paragraph.textContent = ${value.availableMs === null ? 'Availability time unknown' : Added at ${seconds(value.availableMs)}${recording?.range && value.availableMs > recording.range.endMs ? ' — after recording ended' : ''}} · ${value.text}
return paragraph
}),
)
const learning = recording?.learningSummary
element('learning-material').hidden = !learning
element('learning-unavailable').hidden = !recording || Boolean(learning)
if (learning) {
text('learning-title', learning.content.title)
// The title is clamped to two lines in a narrow summary; its tooltip keeps the whole sentence.
element('learning-title').title = learning.content.title
text('learning-question', Question: ${learning.content.question})
text('learning-summary', learning.content.summary)
replace('learning-sequence', learning, () =>
sequenceView(
learning.content, Sequence for ${learning.content.title}. Numbered interactions are described below.,
(step) => {
const position = learning.positions.find(
(value) => value.stepId === step.id,
)?.elapsedMs
if (position !== undefined) {
const link = document.createElement('button')
link.className = 'link'
link.dataset.summaryStep = step.id
link.textContent = ${step.reference && 'captureHash' in step.reference ? 'Inspect verified result' : 'Inspect referenced stop'} · ${seconds(position)}
return link
}
const missing = document.createElement('p')
missing.className = 'muted'
missing.textContent = 'No recorded evidence is linked to this step.'
return missing
},
),
)
for (const control of Array.from(
element('learning-sequence').querySelectorAll(
'[data-summary-step]',
),
)) {
control.disabled = recording?.readiness !== 'ready'
const step = learning.content.steps.find(
(value) => value.id === control.dataset.summaryStep,
)
control.setAttribute(
'aria-current',
String(
Boolean(
step?.reference &&
'snapshotUri' in step.reference &&
step.reference.snapshotUri === model.observation?.snapshotUri,
),
),
)
}
}
const focusedListControl = keyboardControl()
const focusedItem = focusedListControl?.dataset.item
const focusedRegion = focusedListControl?.parentElement?.id
replace(
'flow',
model.progressByItem.map((value) => [value.id, value.title]),
() =>
model.progressByItem.map((value) => {
const link = document.createElement('button')
link.className = 'link'
link.dataset.item = value.id
link.textContent = value.title
return link
}),
)
text(
'correspondence',
recording
? 'Select an observed moment to seek. Source relationships are not inferred from video frames.'
: message.study?.profile === 'repository-browser'
? 'One browser action is declared. Article relationships remain source-derived interpretations.'
: 'Source-derived link; execution correspondence has not been observed.',
)
replace(
'moments',
[message.moments, model.observation?.id, Boolean(recording)],
() =>
message.moments.map((moment) => {
const control = document.createElement('button')
control.dataset.item = moment.itemId
control.dataset.observation = moment.id
control.textContent = ${moment.title} · ${recording && moment.elapsedMs !== undefined ? seconds(moment.elapsedMs) : new Date(moment.at).toLocaleTimeString()}
control.setAttribute(
'aria-current',
String(moment.id === model.observation?.id),
)
return control
}),
)
if (!message.moments.length) text('moments', 'No observed moments yet.')
// The same item's control of a list that was rendered again takes the focus its old control held.
if (
focusedListControl &&
focusedItem &&
(focusedRegion === 'flow' || focusedRegion === 'moments')
)
moveFocusOf(focusedListControl, () =>
element(focusedRegion).querySelector( [data-item="${focusedItem}"],
),
)
const studies = element('studies')
if (studies instanceof HTMLSelectElement) {
const previous = studies.value
replace('studies', message.studies, () => {
if (!message.studies.length) {
const placeholder = document.createElement('option')
placeholder.value = ''
placeholder.textContent = 'No saved study yet'
return [placeholder]
}
// With studies listed and none chosen (after a removal) the list reads this prompt instead of a blank; it cannot be picked and is left out of the open list.
const prompt = document.createElement('option')
prompt.value = ''
prompt.textContent = 'Choose a saved study'
prompt.disabled = true
prompt.hidden = true
return [
prompt,
...message.studies.map((study) => {
const option = document.createElement('option')
option.value = study.id
option.textContent = studyLabel(
study,
studyKindLabel(study, message.profiles),
)
// A configured study that cannot be opened can still be chosen for deletion; a Node test history cannot be deleted here.
option.disabled =
study.metadata === 'unavailable' &&
study.format === 'node-test-history'
return option
}),
]
})
// An entry that cannot be opened stays chosen until the learner chooses another or it leaves the list.
if (
unopenableChoice &&
!message.studies.some((study) => study.id === unopenableChoice)
)
unopenableChoice = undefined
followOpeningChoice(message)
showChosenEntry(message, previous)
renderTestReplay(message, Boolean(recording))
}
for (const link of Array.from(
document.querySelectorAll('.link[data-action]'),
))
link.classList.toggle('visited', visited.has(link.dataset.action ?? ''))
// A replacement must not expose placeholder facts or actions before its complete host snapshot.
element('study-content').inert = false
element('study-content').hidden = false
element('bootstrap-status').hidden = true
// Every control is in its state for this message now; a pane without the focus (the learner is in Run and Debug) waits for its next focus event.
if (document.hasFocus()) payTransportFocus()
offerClampedTitles()
// Measured once the content is shown: a hidden page has no lines to count.
offerShowMore()
// A newly followed pause should reveal its interpretation and facts without requiring a learner scroll past run controls.
if (shouldRevealFollowedPause && !message.loading) {
element('live-content').scrollIntoView({
block: 'start',
inline: 'nearest',
behavior: 'instant',
})
revealedFollowedObservationId = model.observation?.id
}
revealNodeHistoryOnOpen(message)
api.postMessage({
type: 'rendered',
revision: message.revision,
itemId: model.selection.itemId,
snapshotUri: model.observation?.snapshotUri,
...(recording
? { presentationRevision: recording.presentationRevision }
: {}),
...(message.presentation
? {
presentationControlRevision:
message.presentation.presentationControlRevision,
presentationMode: message.presentation.mode,
}
: {}),
})
})
Note: [CWE-346] Origin Validation Error (postMessage handler without origin check).
(event-check-origin-typescript)
LanguageTool
CHANGELOG.md
[style] ~22-~22: ‘at the foot of’ might be wordy. Consider a shorter alternative.
Context: ...ttom panel hidden, the transport stands at the foot of the summary. - **A test replay's contro...
(EN_WORDINESS_PREMIUM_AT_THE_FOOT_OF)
[style] ~23-~23: Consider using “once” instead of ‘one time’.
Context: ...nt list, also when several events share one time. - Keys on the focused slider: for ...
(ONCE_TWICE_PREMIUM)
extension/README.md
[style] ~76-~76: This sentence contains multiple usages of the word “again”. Consider removing or replacing it.
Context: ...at the editor refuses is told and tried again at the next stop) and shows the Learnin...
(REPETITION_OF_AGAIN)
[style] ~80-~80: For conciseness, consider replacing this expression with an adverb.
Context: ...source does not verify, the moment adds Source and debugger not recorded at this moment.; at a stop whose values are not loade...
(AT_THE_MOMENT)
[style] ~82-~82: ‘at the foot of’ might be wordy. Consider a shorter alternative.
Context: ...eplay and shows the transport alone, or at the foot of the Learning summary while the bottom p...
(EN_WORDINESS_PREMIUM_AT_THE_FOOT_OF)
[style] ~82-~82: Consider using “once” instead of ‘one time’.
Context: ...e, and a history whose events all share one time keeps its slider for the keys. **Return...
Required CI on this head: all green. That covers Build, TypeCheck, Lint, Format, Fallow (health, dupes, dead-code), Test 1–14, Reader DOM cases and package.
The full 15-check exact-tree gate ran on d2753786 (ac27cc1a). Since then only CHANGELOG.md and extension/README.md changed (3 lines). No source, test or script changed, so typecheck, lint, the test suites, health and the Reader DOM checks stay valid on this head. The packaged README differs; CI's package job checked that VSIX on this head.
Hosted CodeRabbit: APPROVED on 3bf26744 (review 5638165136); 0 unresolved threads; the review body has no outside-diff findings.
N51 (task 10): both hosts were run in the Space on the ac27cc1a VSIX. Per host results are in #122:
VS Code with Copilot Chat GPT-6 Luna: comment 6384164458.
Cursor with Agent Grok 4.6 High: comment 6384636040.
Criterion
VS Code
Cursor
(a) composition
PASS
PASS
(b) moves
PARTIAL
PARTIAL
(c) 5A
PASS
PASS
(d) browser replay's own composition
PASS
PASS (composition)
(e) Return to Live
PARTIAL
PARTIAL
(f) themes
PASS
PASS
(b): the previous stop's CodeLens stays 70–300 ms during the pending state.
(e): a Study-content frame and a test-family transport frame show during the departure.
None of these is critical. Under the feature cycle rule they are carried to the next cycle (bug-fix) and named in #122's closing comment. Recordings stay private.
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![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
Refs #122 (Cycle 0051, a feature cycle). Plan: the body of #122, approved by
/autoplan(O5).Summary
A saved test replay now opens in the learning-replay composition of the v9 PNG's region 2, as a browser replay already does: the Study pane closes, the Application pane shows the recorded test output above the recorded-source tab, Run and Debug shows the recorded stop, and the Learning summary stands in the chat's place.
codebook_playbackopen of a test replay stays refused (MCP 1.8 unchanged); node-history moves from the Learning summary and the bottom panel are accepted, refused during a browser replay, and late or unknown moves are refused; a failed open gives the Study pane back on Saved studies; leaving the summary composition withdraws the summary's document for both families (9d745e0, found by this ship's review).Step <n> · <label>headings, Show more on the long texts, and a capped diagram height.#recording-transportserves both; test replays get Previous and Next event,<t> s / <total> s, keys by event and stop, Home and End by sequence from any page, and their own six shortcut entries; the bottom panel reads Learning replay and shows only the transport.Compatibility: MCP API 1.8, the bundled skill and every stored format unchanged.
Test Coverage
studyWorkspaceTestReplayComposition.test.ts, 31 tests; 47 new Reader DOM cases; "moves with D8" pins converted with reasons).Pre-Landing Review
Four review passes (the third pass's record was lost to a detached HEAD and re-run as pass 4 on the same tree). Feature cycle rule (AGENTS.md): non-critical findings are answered Skip and carried to the next cycle; one finding that failed this PR's own acceptance (AC15, AC8 (e): a test replay's departure left the Learning summary's document) was fixed in 9d745e0 with tests that fail without it.
Carried (named in #122's closing comment for the next cycle): fixed-time waits in three host tests; two JSDoc blocks above the wrong functions after the refactor; an unanswered one-replay-at-a-time notice holds the entry turn; Close and Return to Live do not invalidate a waiting entry; a stale-revision Saved studies open can leave an empty summary composition; Open replay with the summary and the bottom panel hidden re-shows no UI; a browser study from a test replay's summary bypasses the editor-area deferral; showLearningSummary's identity changes during an open (STALE_PRESENTATION); every move failure is worded as a debugger failure;
forgetUnopenedCompositionand a Reload racing anotheropen()can leave or blank the summary; tagTestReplayDrawing binds marks by SVG sibling order; Show more's expanded state persists across replays;nodeHistoryRefusalis not sanitized at publish; untested state cells (browser replay × another study, × failed open); stale comments. Closed with evidence: an older entry's failed open reporting late (a superseded catch returnssuperseded); the preview retry's revision (intended).Gate edits: 37 listed, 34 read, 0 findings (all "moves with D8" pin conversions with their reasons, and the package test's expected version).
Outside review (Codex gpt-6-astra): structured review GATE PASS in every pass (P2 only); adversarial challenge completed, NO_FINDINGS in the last pass (pass 2's response was unverified by the parser).
Exploratory QA
Functional surface, repository-native commands, on the final reviewed tree
48c3c846: capture 005node --test extension/dist/tests/studyWorkspaceTestReplayComposition.test.js(pass) and capture 006node extension/scripts/study-bootstrap-qa.mjs verify(282 cases, 0 errors, about 25 s, inside the 10-minute reader-dom job). Earlier captures 001 to 004 are superseded. Native pixels, focus and scroll are N51's (after this PR opens).Design Review
No frontend files changed by the scope detector's patterns (the page script is TypeScript template strings) — design review skipped; the UI is covered by the Reader DOM cases and N51.
Eval Results
No prompt-related files changed — evals skipped.
Scope Drift
Scope Check: CLEAN — every changed file is in #122's Files table, plus the harness and
describeNodeTestReplay.ts.Plan Completion
studyWorkspace.test.ts(opening a recording retires a saved Node stop)STUDY_REMOVAL_REFUSALS.nodeHistory) instead of retiring it, as Cycle 0051: a test replay opens in the region-2 composition, with the Learning summary in the chat's place, one transport and 5A #122's findings comment recordsAcceptance edits: baseline unavailable (the plan is a GitHub issue body, not tracked in the repository).
Verification Results
Plan checks: P1 Reader DOM timing PASS (about 25 s of a 600 s job); P2 the 15-check exact-tree gate on the final tree: see Test plan; P3 N51: NOT RUN yet (runs on this PR's candidate before the merge, per the plan's delivery order).
TODOS
No TODOS.md (owner rule): carried items go to #122's closing comment and the next cycle's Issue.
Documentation
Scope: committed branch changes since 8dd675b plus staged/unstaged state (working tree clean), checked against the docs roots README.md, extension/README.md, CHANGELOG.md and extension/skills/codebook/SKILL.md. Result: current, no edits. The two later code commits (the studyHtml.ts helper refactor and the open() clearing of the Learning summary on leaving the summary composition) change no documented behavior; extension/README.md says nothing about the summary's content after Return to Live or after leaving a replay, and its Return to Live wording does not contradict the code. Debt: none found.
Test plan
The exact-tree gate of #122 AC9 (15 checks) on the final tree (
d2753786, HEADac27cc1a):pnpm format:check,pnpm typecheck,pnpm lint,pnpm health:static,pnpm dupes,pnpm dead-code: exit 0.pnpm test: 6,696 tests, 6,690 pass, 6 skipped, 0 fail.node extension/scripts/<check>-qa.mjs verify <new folder>forstudy-bootstrap(282 cases, 0 errors, about 25 s),wiki-reader-dom,study-reading-pose,understanding-focus,repository-return: exit 0.pnpm test:package: 1,071 tests, 1,061 pass, 0 fail.pnpm health: exit 0 (no finding beyond the measured baseline).node --test .codex/restore-product-context.test.mjs: exit 0.gstack-pregate --stage preflight(secrets, strays, literals, timing): pass on the final tree./coderabbit-resolver).local:codebook-qa, OBS Window Capture, frames inspected; the frozen requests and the results go to Cycle 0051: a test replay opens in the region-2 composition, with the Learning summary in the chat's place, one transport and 5A #122 with take SHA-256 values (the recordings stay in private storage).Gate notes, stated for the reader to examine:
test:package(the release commit missedEXTENSION_VERSION; amended) andhealth(two page handlers above the measured baseline; fixed by 5500fba, behavior unchanged, 282 Reader DOM cases).test:packagetest: the new Reader DOM block's counter was named like a revision of its own (regionTwoRevision = 200), which the package test refuses. 12d8f43 renames it toregionTwoStep(4 lines in the test script). Steps 9 and 11 reviewed tree48c3c846(HEADb32d8eca); for this test-only rename they were not dispatched again (owner direction in AGENTS.md: skip a step that plainly adds nothing); the checks it touches ran again on the final tree.🤖 Generated with Claude Code
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