mmdc

name	mmdc
description	Expert reference for mermaid-cli (mmdc): validate and render Mermaid via CLI (SVG/PNG/PDF), install, and troubleshoot mmdc errors. Use when the user asks about mmdc options, mermaid-cli install, or CLI export. Not for: authoring diagrams (mermaid), themed/ASCII export (pretty-mermaid), or declutter-only rewrites (mermaid-doc-readability).
metadata	{"pattern":"tool-wrapper","domain":"documentation","version":"1.3","specialization":"library-guide","pairs_with":["mermaid","pretty-mermaid"]}

mmdc (mermaid-cli)

CLI specialist for validate and render. Pair with mermaid for authoring.

Goal	Do
Validate	Load references/commands.md; run mmdc -i file.mmd; fix and re-validate
Render SVG/PNG/PDF	Same reference; correct -i / -o; themes -t neutral / -t dark, -b #ffffff when asked
Themed / ASCII export	After mmdc passes, defer to pretty-mermaid or pretty-mermaid-bridge
Parse / label errors	mermaid Error Handling + prohibited-characters table
Cluttered chart	mermaid-doc-readability

Install: npm install -g @mermaid-js/mermaid-cli or npx @mermaid-js/mermaid-cli