PR: https://git.cafe/pingdotgg/t3code/pulls/29861
GitHub: https://github.com/pingdotgg/t3code/pull/29861
main: 61c3794c32b0eeebfac09add43e403618c65d2d7
PR head: 03d02e627eda8cff772139f6580bb00ef7f0d50e
Runtime: Linux, Google Chrome 151, Playwright 1.60.0, Muse Code 1.4.14-R7309.1
Muse binary SHA256: 0809aac7cb58d18f5022b6d05e02aa1974683c0ec430e5f04d25b60ed17de2da

Main: git worktree add ../main github/main; vp i
Dev PID 42607, server 16733, web 8693. Stopped before PR server.
t3 project add --base-dir /home/user/main/.t3 --title 'muse verification' /home/user/verification-repo
Added project 09a6e225-6458-468b-880c-75347b411a42.
t3 thread start --base-dir /home/user/main/.t3 --provider codex --model gpt-6.1-sol --wait --json /home/user/verification-repo 'Create greet.mjs ...'
status: completed; created greet.mjs; node greet.mjs Maria -> hello Maria

Enabled real Muse through Settings > Providers. Signed-out Muse returned no models.
Added custom muse-spark-1.3 (documented example from muse model-profile --help).
The UI disables the signed-out Muse model picker, so selected text-generation model through authenticated server.updateSettings WebSocket RPC.
Clicked Commit in the web client, leaving commit message empty.
UI: Text generation failed in generateCommitMessage: Muse Code text generation failed. Check Muse login and availability on this T3 server host.
Server runMuseJson trace: completed-turn handler rejected with Error: not logged in: run /login to add an API key.
No commit created; greet.mjs remained untracked.

PR: git switch --detach github/pr-29861; vp i
Dev PID 54942, server 13773, web 5733, explicit isolated home /home/user/t3code/.t3.
Copied the stopped main dev state to preserve project/thread/model settings.
Authenticated WebSocket /ws?orchestrationProtocol=2, git.runStackedAction action=commit, cwd=/home/user/verification-repo, empty commitMessage.
phase_started: Generating commit message...
action_failed: Text generation failed in generateCommitMessage: Muse Code is not signed in. Run `muse login` on this T3 server host.
TextGenerationError.detail: Muse Code is not signed in. Run `muse login` on this T3 server host.
Raw Muse text remained in cause, separate from detail.

t3 thread send --base-dir /home/user/t3code/.t3 --wait --json mcp:42793235-ab38-435a-b17d-97325e4ac0fd 'Run node greet.mjs and node greet.mjs Maria. Report the two outputs. Do not change files or commit.'
status: completed; node greet.mjs -> hello world; node greet.mjs Maria -> hello Maria.

Blacksmith: packages/provider-muse textGeneration.test.ts: 9/9 passed.
Blacksmith: vp run check:changed e1e520c93c997e07eebf135b12c89fad7fb35085 passed format, lint, both knip checks, typecheck of 10 affected packages, and 10 tests in 2 files.
Worker needed upstream history fetched because its source snapshot initially had no merge base.
+PR web client: clicked Commit against the same untracked greet.mjs. The actual toast now says Muse Code is not signed in and gives muse login. Captured screenshot and 20.64-second recording.
+Nearby web behavior: Git action options > Commit, entered feat: add greeting script, clicked Commit. UI reported Committed 11ac9c5. git log confirmed 11ac9c5 feat: add greeting script and git status was clean.
+Unverified live: Muse quota exhaustion, model-error and unknown-error branches; successful authenticated Muse generation; native desktop/mobile; other generation entry points. Unit coverage is not counted as live verification.