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Record a clip around dogfood tour steps - #15320
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A clip needs its parameters settled before any capture starts: the format and its default frame rate, the scale and width caps, the crop rectangle in window points, the file name, and how the frame size follows a window that is resized mid-clip. None of that needs a window or a screen, so it lives in CmuxFoundation with tests instead of inside the capture session. WindowRecordingFrameGeometry aspect-fits each captured image into the frame size chosen at the start, so a resize letterboxes rather than stretches, and a crop is adopted once and then kept for the rest of the clip. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
An agent working in its own cmux can describe what it changed, but it cannot show it. `cmux record start` films a cmux window, or a region of one, and writes an mp4 or a gif that can go straight into a pull request. `cmux record note` drops a caption into the clip as it runs, so a reader can follow what was being done. Capture uses ScreenCaptureKit's own-process content, so only cmux's own windows are reachable and no Screen Recording permission is asked for. Encoding is AVAssetWriter for mp4 and ImageIO for gif; frame times come from when each frame was sampled, so playback matches what happened. A recording stops itself at --max-seconds, and one runs at a time, so an agent that goes away cannot leave a capture running. The window.record.* socket methods run on the socket worker and are not main-thread callable: the window being filmed has to keep drawing while the sampler runs. They are deliberately absent from the remote relay allowlist, which stays default-deny, because a clip is local screen content rather than an object of the peer's workspace. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A review of the recorder found seven defects the existing tests missed. These are the reds, before the fixes: - `--fps nan`, `--fps inf` and `--fps 1e30` reach `Int(Double)` in the request decoder and trap, which takes the whole app down with the socket. The package suite now crashes with "Double value cannot be converted to Int" instead of finishing. - a gif whose recording stopped long before its frame budget cannot be finalized, because the budget is handed to ImageIO as the number of images the file will contain, so the documented `--gif` flow leaves no file at all. - `record stop` after a clip reached its own `--max-seconds` limit reported "no recording is running" rather than the finished clip. - an unknown recording id, and a note for a clip that already stopped, had no coverage at all. - the mp4 writer's no-frames path was not checked for leaving a stub file behind, and the two-frames-one-tick test only asserted a nonzero duration rather than the timestamps it exists to pin down. - `fit` upscales a window that shrank mid-clip, which its own name says it does not do. `remember` on the registry stops being private so a test can set up a finished clip without a window on screen. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Seven defects a review found, in the order they bite a caller: - `--fps nan` and `--fps 1e30` trapped in `Int(Double)` and took the app down. The decoder now refuses a value that is not finite or does not fit an `Int`. - a gif was created with the recording's frame budget as its declared image count, so a clip stopped before that budget could not be finalized and left no file at all. The count is a floor rather than a cap, and how many frames a clip ends with is only known when it stops, so declare one and add as many as were captured. - `stop` could close the file while an append was suspended inside the session actor, which is an uncatchable AVFoundation exception for the mp4 writer and concurrent state for the gif writer. Appends and the close now take turns. - two `record start` calls could both pass the one-at-a-time check, because the check was followed by the await that opens the capture. The slot is claimed before that await. - `record stop` after a clip reached its own `--max-seconds` limit said no recording was running; it reports the finished clip, as `status` already did. - the mp4 writer cancelled a writer it had never started when a clip captured no frames, which raises rather than returns an error. - the output file was deleted before the first frame was written, so a failed recording destroyed whatever was at `--out`. Frames go to a hidden sibling file and only move into place once the clip closes, a directory or device at that path is refused, and a partial file is cleaned up on every failure path. Also: a window closed mid-clip reported an empty rectangle and was captured as a one-pixel frame for the rest of the clip, so an empty rectangle ends the recording and keeps what came before; `fit` no longer magnifies a window that shrank mid-clip, which is what its name always claimed; and `window.record.*` is listed in `system.capabilities` for local callers, where the relay policy still filters it out. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
`cmux record start --label --gif` named the clip "--gif" and recorded an mp4, because the shared option parser takes whatever follows a flag. The record command now hands a value that looks like a flag back to the unexpected-arguments check, which names both, and the positional recording id for `stop`/`status` no longer accepts one either. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe PR adds window and region recording to MP4 and GIF files. It introduces request validation, frame capture and encoding, recording state operations through the local socket, and a ChangesWindow Recording
Priority: ⬇️ Low Estimated code review effort: 4 (Complex) | ~60 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant CLI
participant TerminalController
participant WindowRecordingRegistry
participant WindowRecordingSession
participant ScreenCaptureKit
participant WindowRecordingFrameWriter
CLI->>TerminalController: send window.record.start
TerminalController->>WindowRecordingRegistry: start recording request
WindowRecordingRegistry->>WindowRecordingSession: start session
WindowRecordingSession->>ScreenCaptureKit: capture window frames
ScreenCaptureKit->>WindowRecordingSession: return captured images
WindowRecordingSession->>WindowRecordingFrameWriter: append frames
CLI->>TerminalController: send window.record.stop
TerminalController->>WindowRecordingRegistry: stop recording
WindowRecordingRegistry->>WindowRecordingSession: finalize session
WindowRecordingSession->>WindowRecordingFrameWriter: finish output
Suggested reviewers: Merge Risk: 🟡 Moderate · up to Recording startup and dogfood stop failures can leave clips active or unattached after an error. Resolve those lifecycle paths before merging; also correct region validation and scenario preflight. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to A failed stop can leave a clip of the application window in the runner’s temporary directory instead of attaching and removing it. Recording is otherwise bounded and limited to eligible application windows; the reviewed change does not establish a remote recording path. Retained concerns
Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
Important Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional. ❌ Failed checks (9 errors, 1 warning, 1 inconclusive)
✅ Passed checks (14 passed)
Full details: Description checkExplanation The description includes a detailed summary, testing information, and changelog entry. It omits the required Demo Video section and Checklist, including confirmation of localization review, socket relay authorization, documentation updates, and subagent review. Resolution Add a demo video or screenshots. Add the Checklist section and state the results for each applicable item, especially localization, Full details: Docstring CoverageExplanation Docstring coverage is 20.13% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 159 functions across 27 files. (10 skipped: 8 unsupported, 2 too large.) Full details: Cmux Swift Blocking RuntimeExplanation The PR adds blocking timing coordination in shipped runtime Swift. Resolution Replace the recording-loop Full details: Cmux Algorithmic ComplexityExplanation The recording frame path performs an unbounded repeated scan. Resolution Replace the linear caption lookup with an upper-bound binary search over the timestamp-ordered notes, or maintain a monotonic cursor for the recording frame loop. Also use a bounded or indexed insertion strategy for out-of-order notes. Add a test or benchmark with about 1,000 notes and the maximum 3,600-frame recording to verify the frame path remains within budget. Full details: Cmux Swift ConcurrencyExplanation The diff adds uncancelled fire-and-forget Tasks in Resolution Keep the synchronous socket-worker bridge required by Full details: Cmux Swift `@Concurrent`Explanation The new Resolution Add a concurrency boundary to the writer protocol and every MP4/GIF Full details: Cmux Swift Package BoundariesExplanation The new recording pipeline keeps independently testable production logic in the app target. Resolution Create a small Full details: Cmux User-Facing Error PrivacyExplanation The PR adds a user-facing production path that forwards raw framework errors. Resolution Map capture and writer failures to safe, cmux-specific messages before returning an API error or storing Full details: Cmux Full InternationalizationExplanation New production Swift adds user-facing recording errors and command responses as raw English strings instead of localized APIs. Examples include Resolution Route every new user-facing recording error, recovery message, and command response through Full details: Cmux Architecture RethinkExplanation The recorder adds an ad hoc synchronization layer around a suspending writer. Resolution Replace the busy flag, waiter queue, and sleep polling with a dedicated writer adapter actor or serial command queue. Make that owner receive AVAssetWriter readiness through its callback or completion signal, then serialize append and finish in one state machine. Remove the fixed Full details: Cmux No Test Or Debug Seam In Production SourceExplanation A test-only production seam was added in Resolution Remove the test-facing ✨ Finishing Touches 💡 1⚔️ Resolve merge conflicts 💡
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Actionable comments posted: 4
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @cmuxUITests/DogfoodScenarioUITests.swift:
- Around line 233-236: Update runRecording so a thrown callSocket stop failure
does not bypass finalization: record the error, resolve the recording’s terminal
status, then ensure the output is attached as a readable clip or removed. Keep
this cleanup on a single finalization path shared by successful and failed
stops.
Review comments at
@Packages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingRequest.swift:
- Around line 200-204: Update the array-region conversion in
WindowRecordingRequest to reject any non-numeric element instead of silently
dropping it with compactMap. Convert each element while preserving its position,
fail with Failure.malformedRegion unless there are exactly four successful
conversions, and use those four values for the region.
Review comments at @Sources/TerminalController+WindowRecording.swift:
- Around line 138-140: Update the startup flow around the `Task` that invokes
`work()` so `WindowRecordingRegistry` owns the pending operation and can cancel
it when the 20-second timeout occurs. Await registry cleanup before returning
`timeout`, and keep both the active-slot claim and pending-to-recording
transition in `WindowRecordingRegistry`; preserve the existing deadline.
Review comments at @tests/test_dogfood_scenarios.py:
- Around line 97-98: Update the scenario validation guard around the `kind`
check to reject steps whose `note` or `record` value is not a nonempty string
before accepting the scenario, including records with `steps`. Preserve the
existing handling of other step kinds.
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.github/workflows/ci-guards.ymlCLI/CMUXCLI+CommandSuggestions.swiftCLI/CMUXCLI+Record.swiftCLI/CMUXCLI+TaskHelp.swiftCLI/CMUXCLI+WindowDispatch.swiftCLI/cmux.swiftPackages/macOS/CmuxControlSocket/Sources/CmuxControlSocket/Wire/ControlCommandExecutionPolicy.swiftPackages/macOS/CmuxControlSocket/Tests/CmuxControlSocketTests/ControlCommandExecutionPolicyTests.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingCaptionTrack.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingFrameGeometry.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingLabel.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingOutputNaming.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingRegion.swiftPackages/macOS/CmuxFoundation/Sources/CmuxFoundation/WindowRecording/WindowRecordingRequest.swiftPackages/macOS/CmuxFoundation/Tests/CmuxFoundationTests/WindowRecordingCaptionTrackTests.swiftPackages/macOS/CmuxFoundation/Tests/CmuxFoundationTests/WindowRecordingFrameGeometryTests.swiftPackages/macOS/CmuxFoundation/Tests/CmuxFoundationTests/WindowRecordingOutputNamingTests.swiftPackages/macOS/CmuxFoundation/Tests/CmuxFoundationTests/WindowRecordingRequestTests.swiftPackages/macOS/CmuxRemoteWorkspace/Tests/CmuxRemoteWorkspaceTests/RemoteRelayCoreRPCPolicyTests.swiftResources/Localizable.xcstringsSources/TerminalController+Capabilities.swiftSources/TerminalController+WindowRecording.swiftSources/TerminalController.swiftSources/WindowRecordingFrameComposer.swiftSources/WindowRecordingFrameWriter.swiftSources/WindowRecordingRegistry.swiftSources/WindowRecordingSession.swiftSources/WindowRecordingWindowSelection.swiftcmux.xcodeproj/project.pbxprojcmuxTests/WindowRecordingPipelineTests.swiftcmuxUITests/DogfoodScenarioUITests.swiftdocs/cli-contract.mddogfood/scenarios/record-split-and-palette-tour.jsonscripts/localization-allowed-omissions.jsonskills/cmux-testing/references/dogfood-scenarios.mdtests/test-execution.tomltests/test_dogfood_scenarios.py
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`outputNotAFile` was added to `WindowRecordingSessionError` in the fix
commit for the output-path handling, but the router's switch over that
enum was never extended, so the app target stopped compiling:
Sources/TerminalController+WindowRecording.swift:175:13:
error: switch must be exhaustive
Nothing on the pull request caught it. The checks that run on a pull
request build the packages and the tooling, not the app target, so this
first appeared in a dispatched UI test run:
https://github.com/manaflow-ai/cmux/actions/runs/36412249068
The missing case is `invalid_params`: `--out` naming a directory, a
device or anything else the recorder may not replace is the caller's
parameter, not a cmux failure, and an agent that reads `internal_error`
retries instead of fixing its flag.
The mapping had no test at all, which is why a missing case could sit
here. `recordingErrorCode(for:)` is now internal and every case of the
three error types it understands is pinned, including the unrecognized
fallback. A compile error cannot be committed as a red test first, since
the test would not build either; the build log above is the red
evidence, and the test is what keeps the codes from drifting.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A screenshot cannot show a drag, an animation, or the order two views settle
in, which is most of what a UI change is judged on. A tour can now wrap the
steps that matter in a recording:
{"record": "sidebar-drag", "format": "gif", "maxSeconds": 30, "fps": 8,
"scale": 0.5, "steps": [{"note": "dragging"}, {"clickAt": {...}}]}
The step starts `window.record.start` over the control socket with `out` set
to a file in the test runner's own temporary directory, the one place both
processes can reach, runs the nested steps, stops the recording and attaches
the clip with `keepAlways`, so it arrives beside the screenshots and trees of
the same run. `note` draws a caption into the clip, which a clip needs because
it has no step list beside it.
A nested step that fails is recorded and the rest still run, as at the top
level: the recording is always stopped, so the clip of the failure survives
rather than being lost with it. Nested steps are numbered 03.1, 03.2 in
steps.log. The decoder refuses a recording inside a recording, since the app
records one window at a time, and refuses an unknown option rather than
dropping it: a silently ignored "maxseconds" would cut a tour's clip short.
tests/test_dogfood_scenarios.py checks the tours and the skill reference
against the decoder in a second rather than after a CI run: every step kind
the decoder accepts is documented and no documented step is undecoded, every
recording option is documented, and every checked-in tour uses only known
steps, known recording options, no nested recording and no empty recording.
Both scenario arms were confirmed by breaking the new tour: renaming
maxSeconds to maxseconds and nesting a record step each fail it, and it passes
again with them restored.
Changelog: none
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A review of the record step found three ways a recording could take the tour down with it. A `window.record.start` that failed threw out of the step runner before the nested loop, so on a machine that cannot capture at all -- a runner whose window ScreenCaptureKit cannot see, or a pre-14.4 system -- the split, palette and sidebar steps of a tour never ran, and the run looked like a window that was never touched rather than a recording that could not start. A recording is observability; it now reports the failure and runs its steps unrecorded. The stop was a plain `try` in the middle of the function, so it was skipped whenever anything before it threw, and its clip with it. It now runs on every path, including after a start whose reply never arrived: the app records one window at a time, so an abandoned slot would fail every later `record` step in the same tour with `conflict` for as long as `maxSeconds`. Stopping with empty params stops whatever is active, which is exactly what a start that timed out leaves behind. A stop that fails after a recording really started still attaches the clip, since the app moves the file into place as it closes the writer. The client deadline was 15 seconds for every method while the app allows itself 20 for start and 30 for stop, so a slow reply became this side's "no reply" rather than the app's own error. Deadlines are now per method and sit above the app's. Also: the clip's extension is derived with the same trimming the app applies to `format`, so `"format": " gif "` cannot name the file `.mp4` and then be refused for having the wrong extension; and a `note` outside a `record` is refused while decoding rather than failing at run time with `not_found`, since there is no clip for it to caption. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
More of the same review. An `mp4` clip never reached `attachments/`, and `mp4` is the default format. `e2e-frames.py` samples a video attachment into frames and then excluded videos from the list that copies attachments out, so the clip existed only inside the xcresult bundle. A clip is now both sampled and kept whole: the frames show what happened, and only the clip can be put on a pull request. The new tour passes `"format": "gif"`, which is why this was not noticed. The guard that keeps the reference honest about the decoder did not run for changes to the decoder. `tests/test_dogfood_scenarios.py` reads `DogfoodScenarioUITests.swift` with `read_text` rather than naming it in a `run:`, so the router put that file in `quality-determinism` only and a pull request touching just the decoder skipped the guard. It is declared in `PATH_OWNERS`, which is the documented place for a guard input read indirectly. Two things the guard could not catch: - a `note` at the top level. The decoder now refuses it, and the guard refuses it too, so it is caught in a second rather than after a CI round trip. - a typo in the socket name a record option is translated into. Only the tour-side keys were checked, so `max_second` would have passed the guard and then been ignored by the app, leaving the recording on its default while the tour stayed green. The socket names are now checked against the parameters `WindowRecordingRequest` reads. The reference did not state the rules the decoder and the guard enforce (a record needs steps and cannot nest), gave only one of the five options' limits, and described an out of range value as "refused by name" when the message names the socket field rather than the tour spelling. It says all of that now, plus what happens on a machine that cannot record. Also: the tour guard gets its own workflow step, so a failure is not reported under "Validate focused test launcher", which has nothing to do with tours. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Review: a subagent reviewed Fixed:
Also, from the optional list: the clip extension is derived with the same trimming the app applies to Not a defect: finding 4 said Left:
Also fixed on |
A record start that timed out on the socket kept running and could register a recording the caller had been told failed. The registry now tracks each start by token; on timeout the socket handler abandons it and waits for the session to release its writer and partial file before answering. A start that is stopped or abandoned mid-capture no longer opens a writer, and fail() releases a writer even after the session reached a terminal state. record note now strips only a leading -- terminator, and cli.usage.record carries every catalog locale. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
# Conflicts: # cmux.xcodeproj/project.pbxproj
The package conventions lint rejects all-static public types, so the limits and the default output naming become extensions on the request. The mp4 test names its encoded clip length plainly so the determinism check does not read it as a measured wall-clock time. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
`DogfoodStep.init(json:)` stopped existing when the initializer grew an `insideRecord` parameter: with a default value it is still callable that way, but its name is `init(json:insideRecord:)`, and an unapplied reference has to spell the whole name. The compiler said so, in the UI test target that no PR check compiles. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Optional tuples are not Equatable, so the caption test did not compile. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Both sides added a step kind to the tour runner, so the step enum, its summary, its decoder and the kind list keep both `socketLine` and `record`/`note`. usesSocket is true for all four. The scenario table in the testing skill lists them in the same order. Brings in the recorder's Equatable Pixel, which is what the last dogfood dispatch failed to compile. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
CI failure attributionCI failed on
Matched log linesNot re-run automatically: Written by |
The tour guard rejected any top level key besides steps and launch, so the five tours that gained paths turned it red. It now accepts paths and checks that it is a list of non-empty patterns, and the record tour carries the globs that let pr-media.yml pick the one tour exercising record. Three behaviours the guard could not reach: - The step decoder accepted a missing or wrong-typed nested steps array and recorded an empty clip with every step dropped. An ad-hoc file passed to run-e2e.sh --scenario never meets the Python guard, so the decoder now refuses it too. - A note that arrived after the clip stopped itself at max_seconds failed the tour, which contradicts the promise that a recording never gates what it observes. not_found is now logged and passes; every other failure still fails the step. - The cleanup stop sent no id, so with nothing running it answered with the previous record step's finished status, and the clip named, attached and deleted was someone else's. Only a stop addressed by id may name the file. e2e-frames.py samples a gif now, so a tour that asks for a gif reaches the pull request through the frame strip rather than the artifact zip alone. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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The record step runs in the tour, and it caught a live bug in the gif writer. Not merging this yet: the fix already lives in #15409, so this branch should be rebuilt on that rather than patched here. The step ranDispatched
What it caughtThe stop reply is The app-host unit job on the same head says why, in the runner's own log (job 109829220153):
Four tests on this head fail for it, and they are the right four:
Where the fix is#15409 carries the repaired writer: each frame is staged as a single-image PNG, and the gif destination is created at close with So the order is #15930 (main's |
Stacked on #15277: the first two commits are that PR's, and only
1a56b664393is new. Review that one, and merge this after #15277.A dogfood screenshot cannot show a drag, an animation, or the order two views settle in, which is most of what a UI change is judged on. A tour can now wrap the steps that matter in a recording:
{"record": "sidebar-drag", "format": "gif", "maxSeconds": 30, "fps": 8, "scale": 0.5, "steps": [ {"note": "dragging the workspace"}, {"clickAt": {"x": 0.08, "y": 0.12}}, {"wait": 1}, {"shot": "mid-drag"} ]}The step starts
window.record.startover the control socket withoutset to a file in the test runner's own temporary directory, the one place both processes can reach (the same reason the control socket lives there), runs the nested steps, stops the recording, and attaches the clip withkeepAlwaysso it arrives beside the screenshots and trees of the same run.notedraws a caption into the clip, which a clip needs because it has no step list next to it.A nested step that fails is recorded and the rest still run, as at the top level, so the recording always gets stopped and the clip of the failure survives instead of being lost with it. Nested steps are numbered
03.1,03.2insteps.log.The decoder refuses a recording inside a recording, because the app records one window at a time, and refuses an unknown option instead of dropping it: a silently ignored
maxsecondswould cut a tour's clip short.dogfood/scenarios/record-split-and-palette-tour.jsonis a tour that uses it.Testing
tests/test_dogfood_scenarios.py(new, linux-guard lane) checks the tours and the skill reference against the decoder in a second rather than after a CI run of tens of minutes: every step kind the decoder accepts is documented, no documented step is undecoded, every recording option is documented, and every checked-in tour uses only known steps and options with no nested or empty recording. Both scenario arms were confirmed by breaking the new tour, renamingmaxSecondstomaxsecondsand nesting arecordstep; each fails the guard, and it passes again with them restored.python3 scripts/verify-local.py --affected origin/main: 14/14 passed. The recording path itself needs a window server and is exercised by running the new tour on a CI runner, which is the dogfood evidence for this PR.Changelog
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@codesmith-botwith what you need. Autofix is disabled.Summary by cubic
Adds
cmux recordso an agent working in its own cmux can capture a window, or a region of one, to an mp4 or gif for a pull request, and lets dogfood tours wrap steps in a recording so a drag, an animation, or the order views settle in can be shown as a clip.Recording
cmux record start|stop|status|note|listcaptures through ScreenCaptureKit's own-process content, so no Screen Recording permission is involved.--max-seconds, only one runs at a time, and frames go straight to disk instead of being held in memory.--out; a malformed--region, or one outside the window, is refused.Dogfood tours
recordstep runs nested steps under a recording and attaches the clip;notedraws the caption into it, and nested steps are numbered03.1,03.2.record startruns the steps unrecorded instead of gating them; the decoder refuses a recording inside a recording, unknown options, a top-levelnote, and arecordstep with missing or empty steps.notesent after the clip self-stopped atmax-secondslogs and passes, and only a stop addressed by id may name the file it closes.tests/test_dogfood_scenarios.pychecks every tour and the step reference against the decoder in seconds; it accepts thepathskey tours use, and the guard also runs when the decoder itself changes.attachmentsas well as sampled into frames, gifs included; anmp4clip previously never left the xcresult bundle.Written for commit b9a0063. Summary will update on new commits.
Summary by CodeRabbit
cmux record. Start and stop recordings, check their status, add captions, and list recent recordings.