skill-metadata-maintainer

# Skill Metadata Maintainer Maintain `metadata` in exactly one target skill. This skill exists to initialize or update the `metadata` object inside one `SKILL.md` file while following repository rules from [CONTRIBUTING.md](../../CONTRIBUTING.md). ## Non-Negotiable Safety Rules - You MUST operate on exactly one target skill per request. - You MUST require the user to specify a unique target, such as the skill name, the skill directory path, or the `SKILL.md` path. - You MUST NOT infer a bulk target such as "all skills", "the whole repo", or "every missing file" from ambiguous wording. - If the request does not identify a single skill unambiguously, you MUST stop and ask the user to specify the exact target skill. - Before modifying anything, you MUST read the existing `SKILL.md` and inspect the current `metadata` values if present. - If any target metadata field already has a value and your change would add, replace, or normalize that value, you MUST explicitly show the user what exists now and ask for confirmation before writing. - You MUST NOT silently overwrite existing metadata values. ## Inputs The request MUST identify one target skill by at least one of: 1. skill name, for example `skill-metadata-maintainer` 2. skill directory path, for example `skills/skill-metadata-maintainer` 3. `SKILL.md` file path Optional user intent may also specify: - initialize missing metadata only - update selected metadata fields - normalize metadata to repository convention ## So...