Claude Opus 5 prompt overrides show how Claude Code steering works
alexcovo_eth · x · 2026-07-25
A new write-up and screenshot break down prompt-steering tricks for Claude Opus 5, specifically in Claude Code workflows.
The image lists several environment overrides and what each adds to Opus 5’s system prompt, including:
- making command output visible but not reliably user-facing,
- encouraging cheaper trial-and-error commands,
- toggling a destructive-action guardrail,
- adding an autonomy block for fully unattended execution,
- and two steering directives for under-delivery and overcorrection.
The article’s main point is that prompt engineering for the newest Claude Code models is now about carefully shaping system prompts, skills, and Claude.md instructions rather than relying on a large default prompt.
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