[teamleaderleo]

Leo, on the agent message rows in the transcript ("Sent to " rows, "Received 2 messages", an opened "Sent 3 messages" group, a bot's line with a subtitle under it):

i don't think these subtitles are as good as just doing it directly in the same line. likewise, idk why everything is grey other than the recieving message bubble. and idk why names are ellipses'd so early plus the weird chevron spacing thing

This is a restyle only. No control is removed or switched off.

1. The preview goes back on the same line. messageLineLook.ts now defaults to single, so the row reads verb, then name, then count, then the muted first line, then the chevron. The stacked look stays available as the stacked gallery version.

• Regressed by Agent chat: message rows put the recipient and count on the row, the first line under it #33249, which made stacked the default.

2. The rows aren't grey any more. Sent, received and group rows read in the transcript's text tone (--cv-text). The preview is the one muted span (--cv-text-muted). An opened send now matches an opened received message in tone and size, where before it was muted detail-size text. The line's hover lift is gone, so a row keeps one tone.

• Regressed by ui(chat): dim background transcript activity #27074 (the activity grey on message rows) and fix(next): unify transcript activity rows #29754 (the hover lift).

3. Names are no longer cut early.

• Removed the chip's 40% cap (agent chat: other sessions' messages are one inline line each, whole when opened #27312, from Agent pane: a sent agent message is one collapsed line, shared with received ones #23738/Agent pane: another agent's message is a left line with the sender's chip, a preview and a glass card #23727) and the received sender's 45% cap (agent chat: other sessions' messages are one inline line each, whole when opened #27312).
• A name no longer shrinks at all; it is capped only at the line. Flex shrink is weighted by width, so even a shrink of 1 against the preview's 1000 shaved a pixel off the name and showed its ellipsis. The preview gives way instead, so only a name wider than the whole line is cut.

4. Chevron spacing.

• The sentence and preview take only their words' width, so the chevron sits right after the words.
• Every message-row chevron is one size (14 at stroke 1.2). The received line and group head drew 12 at 1.4.
• transcript-chevron-after-label.test.ts now covers message rows (agent-pane.message-line-look leo-capture and single).
• Regressed by Agent chat: message rows put the recipient and count on the row, the first line under it #33249, whose empty-toggle pull-back left the chevron floating once the preview moved off the line.

Gallery. agent-pane.message-line-look has these variants:

• single: the default.
• leo-capture: the capture redrawn, with long host/lane names, "· and N more commands", SendMessage rows and a received pair.
• leo-capture-stacked: the before, using Agent chat: message rows put the recipient and count on the row, the first line under it #33249's look.
• stacked, opened, quiet: the other versions.

Tests. The stacked expectations #33249 added go back to the one-line ones. A new SentMessageLine.test.tsx case covers both looks. Locally scoped unit run: 93 pass, 0 fail.

Spec. design/chat-transcript.md, "Always draw a message row between agents ... on one line" (private notes repo).

Follow-up for #34149 (stacked gallery plays): it needs a rebase after this lands. That rebase is its owner's.

Agent session: agent session

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Summary by cubic

Restyles agent message rows in the transcript so they read on one line with the recipient's whole name, in the transcript's text tone. This is a restyle only; no control is removed or switched off.

• The message's first line sits back on the row after the name and count, muted, instead of on its own line underneath; the stacked look stays as a gallery variant.
• Sent, received, and group rows switch from the grey activity tone to the transcript's text tone; the preview is the one muted span.
• Names lose their 40%/45% width caps and never shrink — only the full line width cuts them, and the preview yields first.
• Chevrons sit right after the words, all at one size; an opened send matches an opened received message in tone and size.
• The gallery adds leo-capture and leo-capture-stacked variants; tests and row-height estimates update to the one-line layout.

^{Written for commit f45d0e7. 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 f45d0e7: 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=pr34464 -f ref=agent-msg-rows-inline-preview -f platform=macos -f backend_mode=local

Gallery before/after for f45d0e7: the capture produced no images (run).

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-base-check (6); NEW webview test reds: test/session-chip-browser.test.ts > light received: the session chip sits on the icon's centre line, padded, a link, lit alone; test/session-chip-browser.test.ts > dark received: the session chip sits on the icon's centre line, padded, a link, lit alone; test/incoming-message-disclosure-browser.test.ts > a delivered message and a waiting one draw the same line: chevron after the words, actions on hover; 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

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.4175186455101 (a7072f8788)