PR #29736 real-environment verification, 2026-11-03, Linux
main: github/main 61c3794c32
PR: 86ad5af98a6eda507df3a8331bf324a2939d2d1d
Client: repo Playwright 1.60 + /usr/bin/google-chrome
Provider: Codex gpt-6.1-sol, low reasoning, local proxy
Created a real git repo at /home/user/csi-verification; added it through Add project > Local folder; submitted all prompts through the composer.

MAIN (server 16733 / web 8693)
printf intermediate ESC[1$J: preceding case and a/b/c erased, visible output starts X.
printf colon ESC[1:2A: a/b/cX becomes a/bX.
printf fractional ESC[1.5A: command completes; expanded output says "Couldn\x27t load output: line is not iterable".
Stopped captured main process group 36895 before starting PR.

PR (isolated .t3, server 13773 / web 5733)
Same commands: intermediate and colon output retain a/b/cX.
Fractional command: fractional cursor / a / b / cX / fractional stream finished.
All nine forms, emitted by real Codex exec_command with a 1s pause after ESC[:
1.5A, 1.5G, 1$K, 1$J, >1A, ?25l, 1:2A, 1:2K, 1:2J
Each output equals case <sequence> / a / b / cX.
Valid colon SGR: RGB, computed DOM color rgb(12, 34, 56).
Valid CR + ESC[2K: old replaced by done.
Reloaded client, expanded activity and command; all nine results remain identical.
No incremental output appeared in the running command row; only settled/reloaded output was verified visually.

Blacksmith scoped checks:
vp test run packages/shared/src/terminalOutput.test.ts apps/server/src/orchestration-v2/CommandOutputHub.test.ts: 25 passed.
vp run check:changed 71646e031a6dc9db1309b3b9dff597f872cf2fd3 --concurrency 2: pass (format, lint, knip twice, 34 affected package typechecks, 18 selected tests).
Initial check attempts needed base history fetched on shallow worker; final full scoped check passed.
CI snapshot: 28 successful, 0 failing, 0 pending.