Get usage guide for a rendering tool — includes examples, anti-patterns to avoid, complexity limits, and tips. Call this BEFORE your first render to avoid common mistakes. Available guides: mermaid, d2, graphviz, vegalite, html_page, slides (or "all" for a summary).

Render a Mermaid diagram to SVG or PNG. Supports: flowchart, sequenceDiagram, erDiagram, stateDiagram-v2, gantt, pie, gitGraph, classDiagram, journey, mindmap. IMPORTANT: Code must start with diagram type (e.g., 'flowchart TD'). Do NOT use semicolons. Do NOT use HTML tags in labels. Anti-patterns: 'graph' (use 'flowchart'), unquoted special chars in labels, >25 nodes without subgraphs. Call get_tool_guide('mermaid') for examples and full anti-pattern list.

Render a D2 architecture diagram to SVG or PNG. Best for: architecture diagrams with containers, nested groups, icons, and complex layouts. IMPORTANT: D2 syntax is NOT Mermaid. Use '->' for arrows (not '-->'), containers with 'name: { ... }' (not 'subgraph'). Anti-patterns: Mermaid syntax, unbalanced braces, >3 nesting levels. Call get_tool_guide('d2') for examples.

Render a Graphviz DOT diagram to SVG or PNG. Best for: dependency graphs, network diagrams, tree structures, large auto-layout graphs (100+ nodes). IMPORTANT: Source must be wrapped in 'digraph G { ... }' or 'graph G { ... }'. Use '->' with digraph, '--' with graph. Engine guide: dot=hierarchical, neato=spring, fdp=force-directed, sfdp=large graphs, circo=circular, twopi=radial. Call get_tool_guide('graphviz') for examples.

Render a Vega-Lite chart to SVG or PNG. Supports: bar, line, point (scatter), area, rect (heatmap), boxplot, and layered/composite charts. IMPORTANT: spec_json must be valid JSON with "$schema", "data", "mark", and "encoding" fields. Anti-patterns: missing $schema, omitting encoding types, >500 inline data rows. Call get_tool_guide('vegalite') for examples.

Render a self-contained themed HTML page from body content. No Docker required. Wraps your HTML in a design system with typography, depth tiers, cards, grids, KPIs, badges, and section navigation. IMPORTANT: body_html is the INNER content only — do NOT include , , or tags. Use mf- prefixed CSS classes: mf-hero, mf-elevated, mf-card, mf-grid, mf-kpi, mf-badge-success, etc. Themes: swiss (clean docs), midnight (presentations), warm (reports), terminal (dev content). Call get_tool_guide('html_page') for design system reference and examples.

Render a self-contained HTML slide deck with keyboard/touch navigation, progress bar, and transitions. No Docker required. Supports 8 slide types: title, content, split, code, quote, kpi, image, section. IMPORTANT: slides is a JSON array string of objects with title, content (HTML), and optional type. Content density limits: max 6 bullets per slide, max 10 code lines, max 25 words for quotes, max 30 slides total. Call get_tool_guide('slides') for slide type reference and examples.

List all generated media assets in the output directory.