PR https://git.cafe/pingdotgg/t3code/pulls/23576
main: f58fad0416 (github/main)
PR head: 7411af7f00e9ac39c542d84a2719f5c7926c2979
Linux; repository Playwright 1.60.0; /usr/bin/google-chrome; fish 3.7.0.
Installed each checkout with vp i. One background dev server at a time.
Both servers: SHELL="/usr/bin/fish --login", isolated empty T3 home, no seeding.
Created /home/user/shell-proof real git repo, added project and action through web UI.
Action: printf 'setup-ready\n'; printf 'ready\n' > setup-proof.txt
Enabled worktree creation, wait before agent, and on settle.
Prompt: Run pwd and cat setup-proof.txt. Report SHELL_PROOF_OK if the file contains ready. Do not modify files.

MAIN:
  selected Codex gpt-6.1-sol, New worktree, submitted through composer.
  fish: command substitutions not allowed here
  setup waited for completion; Start agent remained pending.
  captured at 28 seconds; cancelled through UI.

PR:
  same action, shell, project and prompt.
  01:38:49.565Z setup-proof.txt created in real worktree.
  01:38:50.917Z persisted Codex run status running, gpt-6.1-sol.
  provider ran pwd and cat setup-proof.txt; returned SHELL_PROOF_OK.
  01:39:03.778Z persisted run status completed.
  01:42:13.227Z thread.settled persisted after web menu Settle thread.
  01:42:15.265Z setup-proof.txt rewritten by settle action; contents ready.

NEIGHBORS:
  Edited action through UI: printf 'setup-failed\n'; false
  New worktree setup failed with exit 1 (387 ms shown); Start agent pending; no provider response.
  New current-checkout thread skipped failing worktree action.
  Real Codex gpt-6.1-sol ran pwd => /home/user/shell-proof and returned CURRENT_CHECKOUT_OK.
  Current-checkout turn recovered after 2 provider retries, completed within 1 minute.

CHECKS:
  blacksmith-check run: vp i && vp test run apps/server/src/project/ProjectSetupScriptRunner.test.ts apps/server/src/terminal/Manager.test.ts apps/server/src/orchestration-v2/ThreadLaunchService.test.ts apps/server/src/orchestration-v2/ThreadSettlementService.test.ts
  4 files passed; 128 tests passed.
  cafe pr status: 29 successful, 0 failing, 0 pending (stored head snapshot).
  No source changes, commits, or pushes needed.

LIMITS:
  Native Windows PowerShell/cmd, macOS, Electron, mobile, remote/relay/tunnel unverified.
  Actual shell fallback following missing-executable spawn and early-shell-exit race not reproduced this pass.
  This verifies normalized installed Fish, not the separate preexisting asynchronous missing-executable fallback issue.