[teamleaderleo]

Leo: "the avatar, why is it still the circle? ... the nine avatars, we need to be able to just swap them out, just how ChatGPT does."

Change

• A Chief whose profile sets no avatar used to show 🫡 on a grey disc. It now shows the pet character home.chiefPetMascot picks (orb by default, one of the Chief Dock's nine pixel characters) in the Home header, the empty conversation's hero, the Home list row and New Message's suggestions.
• Each character has a square avatar version (ChiefMascot…Avatar.png): the whole character on a transparent square with room around it. The round avatar clip those views already use shows all of it, with no disc behind it. The vendored sidebar and header drawing are unchanged.
• Picking a character (the pet's menu → Chief Settings, the Chief Settings popover's Pet Character, Settings > Chief Pet from [CMUX Next] Chief pet: a Chief Pet settings page like ChatGPT's Mini & Pets #21822) redraws the header and the list at once: both observe the setting. A read for a character picked before the latest one is dropped.
• The header's read moves to HomeChiefAvatars.headerAvatar (CmuxNextHomeEngine), and the character lookup and change callback to ChiefPetSettingsRows (CmuxNextChiefPetWiring), so CmuxNextApp shrinks (SW14 size cap). ChiefPetMascot is now a nonisolated value type.
• A Chief with its own picture or text avatar keeps it.

How the nine look in a round clip (generated from the new files):

Changelog

Changed: A Chief with no avatar of its own shows the chosen Chief pet character instead of 🫡 on a grey disc, and a new character shows everywhere at once.

Observed / Not run

• Observed: scripts/cmux-next/prepush-gate.py reports no new violations. I rendered the nine avatar PNGs in a round clip (the sheet above).
• Not run locally (no Mac builds on this machine): compiling, and ChiefDefaultAvatarTests (the default is orb's avatar; each character resolves to its own bundled file; an unknown id falls back to orb; the header wears the character only when the Chief has no avatar of its own). CI runs them.
• Not dogfooded; native views have no gallery entry.

Agent session: cosmic-gray

🤖 Generated with Claude Code

[github-actions]

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

Review 473e194: 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=pr22776 -f ref=cmux/chief-mascot-avatar -f platform=macos -f backend_mode=local

Pending: CI is running on 473e1940e9 (run); the result below was for bcecc75e30 and no longer applies.

Last result: Not verified: macOS jobs did not run: compile and app tests were skipped on bcecc75e30; ci-status is green without them.

Written by scripts/ci/classify_failures.py (ci-failure-attribution.yml); it is rewritten when this head's CI completes.

web and size checks: green

[teamleaderleo]

Bead cx-us7io created for this PR by the cmux coordinator.

[github-actions]

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.3955987471201 (03960f5a64)

[github-actions]

Shipped in:

• cmux NEXT nightly 1.0.0-nightly.3956132659001 (233cc81754)