Theo Browne reviews an Opus 5.5 usage guide and relates it to his own coding sessions. He recommends giving an agent the whole task, a measurable finish line and explicit boundaries for when it should stop. A remote-work example shows both successful setup and a premature pause after the first implementation phase, illustrating why task completion still needs checking.
Theo Browne argues for specific design constraints and annotated screenshots instead of generic requests to make a page look better. He discusses adding instructions during a run rather than restarting it, and making risky or irreversible actions explicit exceptions to an instruction to continue autonomously.
Theo Browne cautions against maximum reasoning based on his own latency, cost and test results, which are not universal guarantees. He recommends code review across model families, tooling to verify changes and explicit disclosure of what could not be confirmed. The Browserbase sponsor segment is omitted.
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