[teamleaderleo]

Leo-ask: ask-c92cd7a205

Leo: "i should be able to see the copy buttons on your responses when your things end"

Once the agent finishes, the chat's last turn footer (Copy, Fork, Pin, Read aloud, age) now shows without hovering, as in Claude and ChatGPT. Earlier turns' footers stay hover-only. While a turn is running there is no footer for it, so nothing shows mid-turn; once a new prompt follows, the previous footer goes back to hover-only.

• App.tsx: RowFrame marks the turnSummary row with nothing drawn after it acpmux-row--final-footer.
• conversation.css: that row's .cv-turn-actions is at opacity 1. The footer is absolutely placed with its space already kept, so nothing moves.

Spec: design/chat-transcript.md ("one action footer per turn ... revealed on hover"); the spec gets a line about the last turn's footer showing at rest.

Risk: one CSS rule and one class; small and contained.

Agent session: agent session

🤖 Generated with Claude Code

---

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

---

Summary by cubic

Shows the last turn's action footer (Copy, Fork, Pin, Read aloud) without hovering once the agent finishes, matching Claude and ChatGPT. Earlier turns' footers stay hover-only, running turns show no footer, and the footer returns to hover-only once a new prompt follows. The change is small and contained: one CSS rule and one class.

^{Written for commit 36362ac. Summary will update on new commits.}

[github-actions]

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

Review 36362ac: 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=pr31503 -f ref=lane/copy-buttons-turn-end -f platform=macos -f backend_mode=local

Gallery before/after for 36362ac: 16 states rendered, 0 images differ, 1925 more touched states not rendered. Images are in the run's artifact, not on this public PR; the independent review of this head reads them on its own, so the PR needs no hand-made screenshots of these states.

gh run download 41368486852 -R manaflow-ai/cmux -n gallery-advisory-31503-36362ac9bc4840e5f302527f941770f85e5740c5 (then read gallery-review.json)

States

State	Theme	Status	Diff	Picked by
agent-pane.access-offer/turn-no-credits	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.access-offer/turn-no-credits	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.access-offer/turn-low-credits	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.access-offer/turn-low-credits	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.access-offer/turn-no-offer	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.access-offer/turn-no-offer	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/single	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/single	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/single-multiedit	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/single-multiedit	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped-multiedit	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped-multiedit	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/single-long	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/single-long	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped-long	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.approval-edits/grouped-long	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.attachment-source/before	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.attachment-source/before	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.attachment-source/corner	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.attachment-source/corner	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.attachment-source/small	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.attachment-source/small	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.attachment-source/labelled	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.attachment-source/labelled	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.attachment-source/outside	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.attachment-source/outside	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.background-activity/duration-columns	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.background-activity/duration-columns	Apple System Colors	unchanged	0%	own conversation.css
agent-pane.background-activity/pinned-live-tail-light	Apple System Colors Light	unchanged	0%	own conversation.css
agent-pane.background-activity/pinned-live-tail-light	Apple System Colors	unchanged	0%	own conversation.css

_{Pick other states with a Gallery: entry.id, entry.id/variant line in the PR body.}

Probably yours: agent-pane-locale.test.ts, agent-pane-locale.test.ts, agent-pane-locale.test.ts and 52 more fails here but not on main's latest full suite. Seen on other PRs too (likely flaky): agent-pane-locale.test.ts, glyph-alignment.test.ts, agent-pane-chat-column.test.ts and 3 more. This PR merged before its CI finished: fix forward on main.

CI failed on 36362ac9bc (run 41368486935 attempt 1): 8 code, 1 unknown.

Job	Verdict	Why
web / react-apps-check (1)	code	a Python test failed
web / react-apps-check (4)	code	a web test failed
web / react-apps-check (7)	code	a web test failed
web / react-apps-check (3)	code	a web test failed
web / react-apps-check (5)	code	a web test failed
web / react-apps-check (2)	code	a web test failed
web / react-apps-check (8)	code	a web test failed
web / react-apps-check (6)	code	a web test failed
web / react-apps-check	unknown	no known signature; failed step: Check webview test shards

Failures:

• new in this PR agent-pane-locale.test.ts agent pane first paint > chromium: under its own meta CSP (cmux-agent://pane), a German app paints G...: failed (job)
• new in this PR agent-pane-locale.test.ts agent pane first paint > chromium: under the page host's CSP header, a German app paints German from...: failed (job)
• new in this PR agent-pane-locale.test.ts agent pane first paint > chromium: a policy without 'self' blocks the pane's scripts, so the checks ...: failed (job)
• new in this PR agent-pane-locale.test.ts agent pane first paint > webkit: under its own meta CSP (cmux-agent://pane), a German app paints Ger...: failed (job)
• new in this PR agent-pane-locale.test.ts agent pane first paint > webkit: under the page host's CSP header, a German app paints German from t...: failed (job)
• seen on other PRs agent-pane-locale.test.ts agent pane first paint > webkit: a policy without 'self' blocks the pane's scripts, so the checks ab...: failed (job)
• seen on other PRs glyph-alignment.test.ts glyphs use shared row geometry in light and dark: failed (job)
• new in this PR new-tab-headline-place.test.ts (unnamed): failed (job)
• new in this PR forkPending.test.ts a Fork Conversation shows Forking… while acpmux forks, and removes it when the fork answers: failed (job)
• new in this PR heldPromptGesture.test.ts a prompt refused for want of a gesture says to send it again: failed (job)
• ... 51 more in the job logs

Matched log lines

web / react-apps-check (1): FAIL: test_coverage_base_gap_warns_on_a_pr_changing_the_gallery_format (__main__.ScopedChecksTests.test_coverage_base_gap_warns_on_a_pr_changing_the_gallery_format)
web / react-apps-check (4): (fail) a Fork Conversation shows Forking… while acpmux forks, and removes it when the fork answers [76.41ms]
web / react-apps-check (7): (fail) the transcript and the composer share one column, inset by the page edge, wider in wide panes [3903.63ms]
web / react-apps-check (3): (fail) a long mock chat opens on its newest page and pages back to its first message [24.71ms]
web / react-apps-check (5): (fail) a chat's menu keeps its key hints and More models submenu [121.55ms]
web / react-apps-check (2): (fail) a new file (Write, nothing before it) with a diff in its content opens inline as all added lines [103.25ms]
web / react-apps-check (8): (fail) a chat's first frame waits on the handshake and one round trip [57.85ms]
web / react-apps-check (6): (fail) (unnamed) [7196.41ms]

Not re-run automatically: web / react-apps-check (1), web / react-apps-check (4), web / react-apps-check (7), web / react-apps-check (3), web / react-apps-check (5) are not machine failures.

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); NEW: red check: Web bundle key inputs (+4 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / Web status; a job it gathers is red on this change (its line here); do not merge until green; see lane-rules
red: web / react-apps-check; a job it gathers is red on this change (its line here); do not merge until green; see lane-rules
red: web / react-apps-check (1); base red: the same failure on the base 1d9e66e; does not block
red: web / react-apps-check (2); NEW: TypeError: Failed to fetch dynamically imported module: http://127.0.0.1:41243/gallery/src/gallery/agent-pane.virtual.css at warmGalleryFrame (/home/runner/_wor (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (3); NEW: [ "0", - "0", + "1", ] - Expected - 1 + Received + 1 at <anonymous> (/home/runner/_work/cmux/cmux/webviews/test/agent-pane-turn-footer.test.ts:167:33) (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (4); NEW: { "atEnd": true, - "drops": [], + "drops": [ + "5999ms: -393.6 -> -383.3", + ], } - Expected - 1 + Received + 3 at <anonymous> (/home/runner/_work/cmux/cmux/web (+4 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (5); NEW: TypeError: Failed to fetch dynamically imported module: http://127.0.0.1:41273/gallery/src/gallery/agent-pane.virtual.css at warmGalleryFrame (/home/runner/_wor (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (6); NEW: TypeError: Failed to fetch dynamically imported module: http://127.0.0.1:34603/gallery/src/gallery/agent-pane.virtual.css at warmGalleryFrame (/home/runner/_wor (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (7); NEW: TypeError: Failed to fetch dynamically imported module: http://127.0.0.1:46553/gallery/src/gallery/agent-pane.virtual.css at warmGalleryFrame (/home/runner/_wor (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules
red: web / react-apps-check (8); NEW: TypeError: Failed to fetch dynamically imported module: http://127.0.0.1:45687/gallery/src/gallery/agent-pane.virtual.css at warmGalleryFrame (/home/runner/_wor (+1 more) is not red on the base 1d9e66e; do not merge until green; see lane-rules

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.4137128244101 (f92d1cc9e7)
• cmux NEXT nightly 1.0.0-nightly.4137313655701 (6b63875361)
• cmux NEXT nightly 1.0.0-nightly.4137365698801 (0ea390b0f2)

[teamleaderleo]

Review (subagent claude-opus-5-5 medium): SHIP at 36362ac

The CSS order wins: same specificity, and the new rule comes after the opacity 0 rule. A footer gets the class only when nothing drawn follows it, so nothing shows mid-turn. The memo comparator takes the new boolean. Nothing shifts in layout, and the empty last footer stays hidden.
Follow-ups: the final footer appears at once when the turn ends, without the hover fade-in (intended).

[blacksmith-sh]

Found 1599 test failures on Blacksmith runners:

Failures

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...and 1589 more test failures. View all on Blacksmith: run 41368486935, run 41368486943

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