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concept-map
Turn a topic, chapter, or pasted source into a visual graph — mind maps, concept maps, prerequisite trees, cause-effect networks, taxonomies, process flows, or timelines. Triggers on student phrasings like "mind map of the french revolution", "concept map for photosynthesis", "show me how these ideas relate", "visualize this chapter", "map out the relationships in this reading", "map my notes", and on teacher phrasings like "diagram of this chapter for my 7th graders", "prerequisite tree for calculus", "cause and effect map of WWI", "draw a taxonomy of vertebrates", "flowchart the scientific method", "timeline of the civil rights movement", "markmap of these notes". Emits Mermaid (default), Graphviz DOT, or Markmap syntax plus an optional rendered PNG/SVG via the bundled renderer — falls back to syntax + install hints when renderers are missing. Calibrates node count and vocabulary to grade level.