The guide's central advice for long runs is to give the whole task in one message and say what "done" looks like. Its example prompt ends with a stop condition: "Stop and ask me only if a test fails for a reason you can't explain." It…
In the News: October 4, 2026 (Evening)
A claude.dev playbook for Opus 5.5 tells users to name a finish line and write stop rules into CLAUDE.md, and to drop "think carefully" lines.
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