Authoring standard 5 wants `# <Skill> Skill`, then When to Use,
Prerequisites and Procedure; the port kept the upstream layout with the
trigger sentence in the intro and no prerequisites section. Body text is
unchanged; the docs page is regenerated for this skill only.
Standard 7 asks for tests/skills/test_<skill>_skill.py: two invariants —
frontmatter/section structure, and generation routed through the native
`image_generate` tool with no residue of the upstream harness.
8bc5894a3a