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no-duplicate-slash-command-names

Disallow duplicate slash-command names across prompt files and skills.

Rule catalog ID: R069

Targeted pattern scope​

  • .github/prompts/**/*.prompt.md
  • .github/skills/**/SKILL.md
  • .claude/skills/**/SKILL.md

What this rule reports​

  • prompt names that collide with skill names
  • skill names that collide with prompt names
  • collisions involving explicit frontmatter names and default filename or directory-derived names

Why this rule exists​

Prompt files and skills both participate in slash-command style invocation flows. Reusing the same effective command name across those surfaces creates namespace collisions and makes command selection ambiguous.

❌ Incorrect​

.github/prompts/review.prompt.md   # effective name: review
.github/skills/review/SKILL.md     # effective name: review

✅ Correct​

.github/prompts/review.prompt.md         # effective name: review
.github/skills/review-checklist/SKILL.md # effective name: review-checklist

Further reading​