Agentic Mermaid

Connect Remote server

claude mcp add --transport http agentic-mermaid https://agentic-mermaid.dev/mcp

{
  "mcpServers": {
    "agentic-mermaid": {
      "url": "https://agentic-mermaid.dev/mcp"
    }
  }
}

{
  "servers": {
    "agentic-mermaid": {
      "type": "http",
      "url": "https://agentic-mermaid.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://agentic-mermaid.dev/mcp

Tools 9 found in our last check

• execute

  Run JavaScript in an isolated sandbox; return a value. No promises, async/await, dynamic import, or type annotations. SVG/ASCII/layout enforce security:'strict', embedFontImport:false. SDK: type DiagramKind='flowchart'|'state'|'sequence'|'timeline'|'class'|'er'|'journey'|'archit…

• describe_sdk

  Return version-matched mutation operations for one diagram family, or use capability=resolved-scene for painted geometry, runtime limits and typed errors. Use detail=signatures for the compact op menu or detail=fields (default) for exact field types, required flags, enum values,…

• render_svg

  Render a Mermaid source string to themeable SVG. Returns { ok, svg }. Layout is deterministic: identical input produces identical geometry. The hosted boundary forces security:'strict' and embedFontImport:false.

• render_ascii

  Render a Mermaid source string to text. Returns { ok, text }. useAscii true → plain ASCII (+,-,|); false/absent → Unicode box drawing (┌,─,│). targetWidth sets a hard terminal display-cell bound; impossible bounds return a typed error.

• render_png

  Rasterize a Mermaid source string to PNG. Returns { ok, png_base64 }. Hosted rendering uses resvg-wasm with bundled fonts; bytes may differ from the local napi renderer, so hosted PNG is a convenience surface, not part of the byte-determinism contract. For file/URL artifacts use…

• verify

  Parse and verify source, structure, and renderability. This runs the graphical pipeline. Returns { ok, family, summary, warnings, layout: { bounds, nodes, edges } } for valid diagrams and { ok: false, errors } for parse failures. `family` is the detected diagram family and `summ…

• describe

  Describe a Mermaid diagram. format=text returns { ok, text } with one or two summary sentences; format=json returns { ok, tree } with the AX tree; format=facts returns { ok, facts } with deterministic semantic fact lines for machine checking (for example edge A -> B : label, mem…

• mutate

  Apply a list of structured edit ops to an existing Mermaid `source` and return the edited diagram. This is the declarative counterpart to `execute`: plain JSON in, plain JSON out, no sandbox. Prefer it for straightforward edits; reserve `execute` for logic the ops don't express.…

• build

  Author a new Mermaid diagram from blank by folding a list of structured ops over an empty diagram of `family`. The declarative counterpart to hand-writing source. Returns the same envelope as `mutate`: { ok, family, source, verify } or { ok:false, family, opIndex, error }. Call…

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