PR #24673 real environment verification, 2026-11-01
Main: 955e2bfbb5c092c54ad795c8d379fec99702a6b5
PR: ab75817da997b8a2fbf72429c5033926a42116d3

Commands:
git worktree add ../main github/main
vp i (both checkouts)
setsid nohup vp run dev (background, sequential servers, isolated state)
Playwright 1.60.0 from repository dependencies; /usr/bin/google-chrome
blacksmith-check run --id <task-owned-box> "vp run check:changed 575579d68ac4bae09f8426a345d4a3eac1e90c67"

Main user flow: Settings > Providers > Advanced. Fill 1 over 300 without blur.
Observed real WebSocket server.updateSettings patch: providerHealthRefreshInterval=1000.
Reload without blur: 1 second persisted. Original bug reproduced.

PR same flow: fill 1 over 300 without blur.
Observed no settings write. Reload: 300 seconds.
Type 120: no write until Tab; then one 120000ms patch and durable 120 seconds after reload.
Empty then Tab: restores 120 with no write. Unchanged 120: no write.
Increase: 150 seconds; ArrowDown: 120 seconds. Explicit 0: persisted disabled interval.
Commit 2 seconds: real Codex provider subscription checkedAt values:
2026-11-01T05:09:04.650Z
2026-11-01T05:09:06.732Z
2026-11-01T05:09:08.807Z
No provider status mocked or injected.

Real failure: temporarily remove write permission on task-local userdata directory.
Commit 120 from 300: server filesystem write fails; field restores 300; disk unchanged.
Restore permissions, retry same 120: saved, survives reload.

Settings > Maintenance > Background activity > Advanced:
Git fetch 90, provider health 180, active host 1 (clamped to 5), idle host 60.
Each typed draft sends no settings write until Tab. All four persist after full reload.
Git fetch increment preserves 5-second step (90 to 95).
Providers editor reflects 180 from Background activity. Rapid ArrowUp/ArrowDown returns to 180 after reload.
Manual provider refresh returns available Codex.
Known baseline warning: Background activity shows Setting not saved / environment does not support setting, while disk and reload confirm saved values. Reproduced on both main and PR. Not introduced here.

Created a project for /home/user/t3code through Add project > Local folder.
Selected Codex gpt-6.1-sol in composer and sent a real provider turn.
Client rendered the completed response: provider interval verification passed.

Blacksmith checks: format, lint, both knip passes, 2 affected typechecks, 30 tests in 4 files, 4 React compiler cases pass.
PR CI: 29 successful, 0 failing, 0 pending.
No source changes, commits, or pushes required.
Not verified: native desktop/mobile, remote/relay/tunnel connections, non-Codex provider execution, platform-specific host power events, production builds. An older acknowledgement replacing a newer draft briefly was not latency-stressed.