migrate4-5 (legacy install path)
This directory exists so npx skills add markuplint/markuplint@migrate4-5 keeps resolving after the skill moved to skills/migrations/v4-v5/.
Canonical install:
npx skills add markuplint/markuplint@migrations/v4-v5
When working in the markuplint repository, read and follow skills/migrations/v4-v5/SKILL.md. When this legacy skill is the only copy installed, fetch the migration guide from the website (/docs/migration/v4-to-v5/) and apply the same checklist as that file (silent splits, Node 24, --no-allow-warnings, preset gaps).
Do not maintain divergent migration steps here — update skills/migrations/v4-v5/SKILL.md only.