prompt-writer

Writes high-signal prompts for Claude Opus 4.8 (system prompts, subagent briefings, skill bodies, command bodies, agent bodies, CLAUDE.md files, .claude/rules/*.md) and audits existing ones. Use whenever instructions are being authored or edited for any Claude to execute, even when the user does not say the word "prompt". Triggers on "write a system prompt", "brief a subagent", "draft an agent body", "skill content", "command body", "CLAUDE.md", "rules file", "audit this prompt", "improve this instruction", "make this prompt better". Sibling creator skills (skill-creator, command-creator, agent-creator, claude-md-rules-creator) call this skill for the prompt body itself. Use aggressively; undertriggering is the failure mode.