This post has been merged into No Error Doesn’t Mean Success: Silent Failures, Opus Fabricating Tool Output, and the Hook That Finally Stops It. All of the original content lives there now, and that’s the only copy that gets updated.
Opus 4.8 Cries 'Prompt Injection,' Codex GPT-5.5 Tracks Down the Real Cause: a Worktree Race
With multiple sessions open in one repo and no worktree, Opus 4.8 raised a false prompt injection alarm, told me to check for supply-chain attacks and rotate API keys, until Codex GPT-5.5 read the session log and pinned the real cause: just a worktree race.
3-month 1-on-1 AI coaching
A prompt handbook written around your own work, two 2-hour 1-on-1 sessions, and DMs answered for three months. At the end you rerun the whole workflow yourself.
See what the program includesShare this post on: