Mermaid Chart
Partner, reviewedValidates Mermaid syntax, renders diagrams as high-quality SVG, and displays them instantly in an interactive UI where users can preview, zoom, and iterate in real time.
A connector: add it in the Claude app under Settings, Connectors; Claude Code signed in to the same account can use it too. There is nothing to install from a terminal.
From Anthropic's public plugin directory, read on 2026-10-15. Find a skill by task.