Mermaid Diagrams Generate text files and export to PNG/SVG/PDF using (local) or Kroki API (no install). Key advantage: Text-based syntax with fully automatic layout — no x/y coordinates needed. Prerequisites Option A: Local (mmdc) Option B: Kroki API (no install) Workflow 0. Update check (notify, don't pull) — first use per conversation. Throttle to once per 24 h via ; never mutate the skill directory without explicit user consent. - If exists and is <24 h old, skip this step entirely. - Otherwise, fetch the latest tag from upstream: - Compare with this skill's from the frontmatter. If the up…