[austinywang]

Summary

In an empty Chief conversation, a long draft grows the compose field up into the Chief front page, and the page's action rows and Switching card drew over the text.

• MessagesLabHomeView.onFieldTopChange reports a field height change (typing, an attachment, a width rewrap, a send); HomeNativeTranscriptView lays out again, so the panel ends at the field's top.
• HomeFirstRunView drops what does not fit, in order: agent rows, then the hero, then the Switching card, then the action rows. Everything returns when the field shrinks; a card hidden with Hide stays hidden.
• New DEBUG capture scene home-chief-long-draft: the home-chief scene plus a 24-line draft; it waits until the field grew and the panel gave way, and reports the gap between the panel's lowest shown part and the field.

Changelog

Fixed: The Chief start page no longer draws over a long message as you type it.

Testing

cmux-ci run --class light --script scripts/ci/package-test-lane.sh --arg=suite --arg=Packages/macOS/CmuxNext --arg=HomeChiefFrontPageTests,HomeFirstRunSwitchCardTests[,SharedIndicatorSurfacesTests] (Xcode 26.6):

• Base plus the test only (eccbc43): aGrowingFieldNeverLeavesThePanelUnderIt fails with 44 issues (the card and rows drawn up to 230 pt past a 0 pt panel; the action rows never hide).
• Fix (c4ccf2c), review follow-up (6d17447): all pass.
• Final head: see the latest evidence comment.

Observed / Not run

• Observed: the red/green runs above; a tagged dev build of 6d17447 (job 2132c132a42aa997f14a29af, tag 22969-chief-front-page-overlap) dogfooded by the requester, who reports the panel now gives way to a long draft.
• Two correctness reviews by subagents: PASS (findings fixed; see comments).
• Not run: the Mac capture.

No capture: the capture build succeeded (job 790ffc5eeee906f2b2074d09, head 02d3271), but capture-host acquire --slot could not reach either capture mini from this machine (cmux-mac-mini-cua-2/-3: SSH alias does not resolve here). cmux-ci capture <head> --state scene:home-chief-long-draft --pr 22969 from a machine on the fleet route produces it.

🤖 Generated with Claude Code

[github-actions]

cmux status _{(one comment, edited in place; each line is updated by the job that owns it)}

Review d88afe1: HQ feed card · gallery before/after runs · checks

App of this head (app.zip, kept 1 day)

gh workflow run reload-build.yml -R manaflow-ai/cmux --ref feat-cmux-next -f tag=pr22969 -f ref=chief-first-run-composer-overlap -f platform=macos -f backend_mode=local

Passes: CI passes on d88afe18ea.

CI passes on d88afe18ea (run 39900322057 attempt 1).

Written by scripts/ci/classify_failures.py (ci-failure-attribution.yml); signatures are its SIGNATURES table. A machine verdict is the runner's fault, not this PR's; yours means the failing file is one this PR changes, also red on main that main's latest full suite fails the same way, seen on other PRs that it failed on another pull request's run lately.

red: cmux-next checks (god files, concurrency, crash safety, l10n); no finished base run on d35831e to compare; do not merge until green; see lane-rules

Tour of d88afe18ea (run)

The path-selected recorder failed for core-after, core-before; see the run artifact and failed manifests.

Path-selected interactions

Interaction	Changed paths
chief-settings	Packages/macOS/CmuxNext/Sources/CmuxNextHome/NativeTranscript/HomeFirstRunView\+Debug.swift Packages/macOS/CmuxNext/Sources/CmuxNextHome/NativeTranscript/HomeFirstRunView.swift
core	Packages/macOS/CmuxNext/Sources/CmuxNextApp/Control/CaptureSceneRegistry\+Home.swift Packages/macOS/CmuxNext/Sources/CmuxNextApp/Control/CaptureSceneRegistry.swift Packages/macOS/CmuxNext/Sources/CmuxNextHome/NativeTranscript/HomeNativeTranscriptView.swift Packages/macOS/CmuxNext/Tests/CmuxNextAppTests/HomeChiefFrontPageTests.swift

Chief front page and settings (before): DEGRADED — 4 ok, 2 unavailable

Video (mp4)

#	Step	Result	Command
1	Launch	ok
2	Home with the Chief: its front page while the conversation is empty	ok	cmux action run home.show
3	Dark	ok
4	Back to the system appearance	ok
5	Chief settings under the name pill	unavailable: exited 1 (the settings open only over a Chief conversation)	cmux action run home.toggleChiefSettings
6	Closed again	unavailable: exited 1 (the settings open only over a Chief conversation)	cmux action run home.toggleChiefSettings

Screenshots (5)

1. Launch


2. Home with the Chief: its front page while the conversation is empty


3. Dark


5. Chief settings under the name pill


6. Closed again

### Chief front page and settings \(after\): DEGRADED — 4 ok, 2 unavailable

Video (mp4)

#	Step	Result	Command
1	Launch	ok
2	Home with the Chief: its front page while the conversation is empty	ok	cmux action run home.show
3	Dark	ok
4	Back to the system appearance	ok
5	Chief settings under the name pill	unavailable: exited 1 (the settings open only over a Chief conversation)	cmux action run home.toggleChiefSettings
6	Closed again	unavailable: exited 1 (the settings open only over a Chief conversation)	cmux action run home.toggleChiefSettings

Screenshots (5)

1. Launch


2. Home with the Chief: its front page while the conversation is empty


3. Dark


5. Chief settings under the name pill


6. Closed again

### Core UI \(before\): FAILED — 16 ok, 3 failed, 1 unavailable

Video (mp4)

#	Step	Result	Command
1	Launch	ok
2	New workspace	ok	cmux workspace new --name Tour
3	Type in the terminal	ok	cmux workspace name:Tour screen current pane current tab current terminal current write --text "echo hello from the cmux-next tour\r"
4	A command reports progress: tab loading spinner	ok	cmux workspace name:Tour screen current pane current tab current terminal current write --text "clear; printf '\\033]9;4;3\\007'; sleep 900\r"
5	Split right	failed: exited 1	cmux action run splitRight
6	Split down	failed: exited 1	cmux action run splitDown
7	New terminal tab	failed: exited 1	cmux action run newSurface
8	Browser tab	ok	cmux tab new-browser --url https://example.com
9	Hide the sidebar	ok	cmux action run toggleSidebar
10	Show the sidebar	ok	cmux action run toggleSidebar
11	Notification	ok	cmux notify --title Tour --body "Hello from CI"
12	Notifications panel	ok	cmux action run showNotifications
13	Agent chat	ok	cmux agent new-chat
14	Agent workspace	ok	cmux workspace new --name Agent
15	Agent starts	ok	cmux workspace name:Agent screen current pane current tab current terminal current write --text "clear; printf '\\033]7501;state=working\\033\\\\'; sleep 8; printf '\\033]7501;state=done\\033\\\\'; sleep 900\r"
16	An agent works: row working spinner	ok	cmux workspace new --name Notes
17	The agent finishes: done mark in the spinner's place	ok
18	Session tree: keycaps on the first rows	ok	cmux settings set sidebar.sessionTree true
19	Session tree back off for later tours	ok	cmux settings set sidebar.sessionTree false
20	Profile menu	unavailable: exited 1 (the menu shot needs a screen capture route)	cmux action run sidebar.profileMenu

Failed steps:

5. Split right


6. Split down


7. New terminal tab

Screenshots (12)

1. Launch


2. New workspace


3. Type in the terminal


4. A command reports progress: tab loading spinner


8. Browser tab


9. Hide the sidebar


11. Notification


12. Notifications panel


13. Agent chat


16. An agent works: row working spinner


17. The agent finishes: done mark in the spinner's place


18. Session tree: keycaps on the first rows

### Core UI \(after\): FAILED — 16 ok, 3 failed, 1 unavailable

Video (mp4)

#	Step	Result	Command
1	Launch	ok
2	New workspace	ok	cmux workspace new --name Tour
3	Type in the terminal	ok	cmux workspace name:Tour screen current pane current tab current terminal current write --text "echo hello from the cmux-next tour\r"
4	A command reports progress: tab loading spinner	ok	cmux workspace name:Tour screen current pane current tab current terminal current write --text "clear; printf '\\033]9;4;3\\007'; sleep 900\r"
5	Split right	failed: exited 1	cmux action run splitRight
6	Split down	failed: exited 1	cmux action run splitDown
7	New terminal tab	failed: exited 1	cmux action run newSurface
8	Browser tab	ok	cmux tab new-browser --url https://example.com
9	Hide the sidebar	ok	cmux action run toggleSidebar
10	Show the sidebar	ok	cmux action run toggleSidebar
11	Notification	ok	cmux notify --title Tour --body "Hello from CI"
12	Notifications panel	ok	cmux action run showNotifications
13	Agent chat	ok	cmux agent new-chat
14	Agent workspace	ok	cmux workspace new --name Agent
15	Agent starts	ok	cmux workspace name:Agent screen current pane current tab current terminal current write --text "clear; printf '\\033]7501;state=working\\033\\\\'; sleep 8; printf '\\033]7501;state=done\\033\\\\'; sleep 900\r"
16	An agent works: row working spinner	ok	cmux workspace new --name Notes
17	The agent finishes: done mark in the spinner's place	ok
18	Session tree: keycaps on the first rows	ok	cmux settings set sidebar.sessionTree true
19	Session tree back off for later tours	ok	cmux settings set sidebar.sessionTree false
20	Profile menu	unavailable: exited 1 (the menu shot needs a screen capture route)	cmux action run sidebar.profileMenu

Failed steps:

5. Split right


6. Split down


7. New terminal tab

Screenshots (12)

1. Launch


2. New workspace


3. Type in the terminal


4. A command reports progress: tab loading spinner


8. Browser tab


9. Hide the sidebar


11. Notification


12. Notifications panel


13. Agent chat


16. An agent works: row working spinner


17. The agent finishes: done mark in the spinner's place


18. Session tree: keycaps on the first rows

_{Tours are data in scripts/cmux-next/media/tours: add a step or a tour file to show your feature.}

[teamleaderleo]

Bead cx-fpnwb created for this PR by the cmux coordinator.

[austinywang]

Evidence for head 6d1744787c59e8efc1652c7f7406b340578d7ae7 (base feat-cmux-next).

Focused tests (cmux-ci run … package-test-lane.sh suite Packages/macOS/CmuxNext …, Xcode 26.6):

• eccbc43 (test only): aGrowingFieldNeverLeavesThePanelUnderIt fails, 44 issues (rows and card drawn up to 230 pt past a 0 pt panel; action rows never hide).
• c4ccf2c (fix): HomeChiefFrontPageTests 6/6, HomeFirstRunSwitchCardTests 4/4 pass.
• 6d17447 (head, with the review follow-up): HomeChiefFrontPageTests, HomeFirstRunSwitchCardTests, SharedIndicatorSurfacesTests all pass (key chief-firstrun-6d174478).

Review (correctness subagent): PASS. Two low findings, both fixed in 6d17447: agent rows could outlast a dropped Switching card, and a card with its desktop-conflict note could go before the hero. Now agent rows show only while the hero and card do, and the hero only while a card with keys does. Nit (no change): a width rewrap asks for one extra no-op layout pass.

Dev build: job 2132c132a42aa997f14a29af, tag 22969-chief-front-page-overlap, published to HQ and launched.

Not run yet: visual review of the tagged build.

[teamleaderleo]

cmux-next guards / defaults-snapshot is red on 18 of 18 fresh feat-cmux-next PR heads in the last 2:00:00, so it is most likely a base red, not this PR's. The base-reds lane has it; a base merge picks up the fix once it lands.

[blacksmith-sh]

Found 8 test failures on Blacksmith runners:

Failures

Test	View Logs
/tmp/tmp15gxyko9/summary-fail.json (live):/summary-fail.json (live):	View Logs
/tmp/tmpmsk6vrmf/summary-missing.json (live):/summary-missing.json (live):	View Logs
[new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows/ [new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows	View Logs
[new_workspaces] the window draws no frames/[new_workspaces] the window draws no frames	View Logs
[tabs] debug.tab_switch timed 0 of 40 switches/ [tabs] debug.tab_switch timed 0 of 40 switches	View Logs
[tabs] the window draws no frames/[tabs] the window draws no frames	View Logs
test_base_passes (main.NoticesPairTests.test_base_passes)/ test_base_passes (main.NoticesPairTests.test_base_passes)	View Logs
test_targets_outside_the_app_go_to_the_mac_canary (main.SwiftCanaryFleetCoverage.te st_targets_outside_the_app_go_to_the_mac_canary)/ test_targets_outside_the_app_go_to_the_mac_canary (main.SwiftCanaryFleetCoverage.te st_targets_outside_the_app_go_to_the_mac_canary)	View Logs

^{Need help on this PR? Tag @codesmith-bot with what you need.}

[austinywang]

Evidence for head af4ac245f1a38fa97a00f218c932726f124e6358 (merged with feat-cmux-next in af43a0c).

Focused tests (package-test-lane.sh suite Packages/macOS/CmuxNext HomeChiefFrontPageTests,HomeFirstRunSwitchCardTests,SharedIndicatorSurfacesTests, Xcode 26.6): all 3 suites pass at 02d3271 (key chief-firstrun-02d32717) and at the head (key chief-firstrun-af4ac245).

Review of the merge and capture scene (second correctness subagent): PASS. Merge keeps both base's import-card offset (ColumnTopOverlays) and this fix; every write of the field's height fires onFieldJump/onFieldResize, so nothing moves the field top without a relayout; the long-draft scene can settle (the field caps at 295.5 pt, 24 lines grow it about 265 pt). One low finding fixed in af4ac24: Home scenes now start with an empty field, so a long-draft render leaves nothing for later scenes; a missing transcript is now an error, not a silent pass.

Earlier reds on 6d17447 (defaults-snapshot, cmux-next generated files, cmux-next swift test, cmux-next perf gate) were base findings: stale settings exports for files this PR does not touch, and ActionSurfaceParityTests.everyMenuKeepsAShortTopLevel (13 > 12). The branch now has the current base; CI on this head supersedes them.

Capture: not taken (see description: capture minis unreachable from this machine; build job 790ffc5eeee906f2b2074d09).

[cursor]

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[austinywang]

Evidence for head d88afe18ea6de2eabd2bee37eb86e04a617ed605 (merged with current feat-cmux-next).

Conflict resolution (bbca89b, against #23940): the import suggestion row now sits inside the panel under the action rows, so it counts with the action block and hides with it; the transcript takes base's header-only top, keeping onFieldTopChange. Review subagent: PASS (the import row's isHidden stays owned by the row; no layout loop; nothing re-shows it over the field). Nit, pre-existing in base: the size check counts a 14 pt gap above the import row where the stack uses 6 pt, so it hides a part a few points early, never late.

Focused tests (key chief-firstrun-d88afe18, Xcode 26.6): HomeChiefFrontPageTests, HomeFirstRunSwitchCardTests, SharedIndicatorSurfacesTests all pass.

Dev build: job 8064b3f757aeaec6ad925979, tag 22969-chief-front-page-overlap-v2.

Reds on this head, classified:

• pr-capture-check: this PR's description (the No capture: line was mid-line); fixed in the description.
• rails (web Rails tests), nightly-guards / release-notary (Ghostty license manifest digest) and its wrapper Guard status: files this PR does not touch; base findings.
• cmux-next checks: findings in SidebarPullRequestCard, VaultListView, BrowserDownloadsPopup, WorkspaceTodoPageView, ExtensionsMenuView, AgentCLIIntentLedger, HomeGroupInfoView, ChiefMemoryInspectorView, plus Type scale / No new SwiftUI; none in this PR's files, and the pre-push gate reports no violation added by its commits. Base finding.

[github-actions]

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.3991367032401 (b9c3d5aabc)
• cmux NEXT nightly 1.0.0-nightly.3991503232101 (cd84bc62d1)
• cmux NEXT nightly 1.0.0-nightly.3991575404801 (a62351daaa)