Use only when the user explicitly names miku-prompt-lint or igapyon-miku-prompt-lint, or asks to lint, audit, or diagnose an LLM prompt, AI-agent context package, Agent Skill, or supplied Agent Skill repository/harness for prompt/context-engineering quality risks. Do not activate for generic code review, document review, prose editing, source-code templates, or generic repository review unless explicitly named. Review the artifact itself; do not infer whether the author was human or generated AI.
