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Claude Code's prompt-audit Command Becomes /checkup
A viral one-command prompt auditing trick for Claude Code was quickly folded into the product, with the command renamed to /checkup.
2026-09-23 ~ 2026-09-27 · 2 episodes · 6 posts
Episode 1 · One command audits your Claude Code config for anti-patterns (2026-09-23, 3 posts)
A command shared by developers, /claude-api prompt-audit, lets Claude Code users audit their skills and CLAUDE.md files for anti-patterns; one user reported it found about 70 improvement points at once using Opus 5.5.
- Claude Code prompt-audit command strips anti-patterns hobbling Opus 5.5 — RLanceMartin · 2026-09-23
- Claude Code Users Rush to Run 'prompt-audit' to Clean CLAUDE.md Anti-Patterns — daniel_mac8 · 2026-09-24
- Prompt audit with Opus 5.5 surfaces ~70 fixes for your Claude Code skills and CLAUDE.md — daniel_mac8 · 2026-09-24
Episode 2 · Claude Code Renames Command to /checkup for One-Shot Prompt Audits (2026-09-26, 3 posts)
Claude Code renamed its /claude-api prompt-audit command to /checkup prompt-audit. The command audits CLAUDE.md, skills, and agent configurations to identify and clean up redundant or conflicting instructions.
- Claude Code's prompt-audit command renamed to /checkup prompt-audit — lydiahallie · 2026-09-26
- Claude Code renames prompt-audit command to /checkup, scans CLAUDE.md for stale instructions — petergyang · 2026-09-26
- One command to audit Claude Code prompts: /checkup cleans stale instructions — xiaohu · 2026-09-27