Agentic Mermaid

Name: Agentic Mermaid
Author: adewale

作者：adewale版本 0.5.6i★ –i电脑或云端

注册名称io.github.adewale/agentic-mermaid

安装

概览

作者提供的说明（英文原文）

Render, verify, describe, and safely edit Mermaid diagrams through MCP.

PopNx MCP 的三大支柱

这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。

用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
我们的基础检查i3 项中通过 3 项依据公开信息检查；尚未扫描代码
使用情况i尚未统计★ –

它能帮你做什么

我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。

连接方式: 电脑或云端
传输方式: stdio, Streamable HTTP
分类: 设计、图片与音频

安装

选择你使用的 AI 应用，然后复制设置。

安装之前

基础检查：3 项中通过 3 项
在作者的服务器上运行：你向它提出的内容会经过他们的服务器。
可以做 9 件事（工具） execute, describe_sdk, render_svg, render_ascii …
注册中心没有列出需要填写的密钥。

你需要

在云端运行无需安装任何东西，通过互联网连接
npm已安装 Node.js（用于 npx 命令）

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。

适用于网页版、桌面版和手机版 Claude：

打开 Settings → Connectors
点击 Add custom connector
粘贴下面的地址，然后点击 Add
如果要求登录，请登录作者的服务

https://agentic-mermaid.dev/mcp

或者在你的电脑上运行

打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json

{
  "mcpServers": {
    "agentic-mermaid": {
      "command": "npx",
      "args": [
        "-y",
        "agentic-mermaid",
        "mcp"
      ]
    }
  }
}

在终端中运行这条命令

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

或者在你的电脑上运行

claude mcp add agentic-mermaid -- npx -y agentic-mermaid mcp

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

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

或者在你的电脑上运行

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "agentic-mermaid": {
      "command": "npx",
      "args": [
        "-y",
        "agentic-mermaid",
        "mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

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

或者在你的电脑上运行

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "agentic-mermaid": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "agentic-mermaid",
        "mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

ChatGPT 只能连接互联网上的服务器：

打开网页版 ChatGPT → Settings → Connectors (Apps)
点击 Create 或 Add（部分套餐需要先在 Advanced 中开启 Developer mode）
粘贴下面的地址，起个名字，然后保存
如果要求登录，请登录作者的服务

https://agentic-mermaid.dev/mcp

菜单名称可能因套餐和版本不同而略有差异。

你的选择通过 Cookie 保存在这台设备上，无需账户。

这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。

它能做什么

工具名称和描述与服务器在 2026年11月6日报告的完全一致。这些内容由作者撰写，不是我们写的；我们以纯文本形式显示。

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'|'archite
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 `summa
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, memb
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 `

基础检查i

我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月7日

✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 adewale 验证，该账户拥有此仓库
… 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
… 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
✓ 通过
端点有响应
在 451 毫秒内响应（HTTP 200）
– 不适用
使用 OAuth 登录
无需登录
✓ 通过
工具描述中没有隐藏指令
已读取 9 个工具描述，未发现针对 AI 的隐藏指令

与“设计、图片与音频”中的其他服务器比较i

星标数多于此分类中其他 2753 个服务器的 0%
发布到注册中心的时间比此分类中其他 2753 个服务器的 87% 更新
基础检查结果等于或优于此分类中其他 2753 个服务器的 100%

与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。

常见问题

Agentic Mermaid 安全吗？

它在 3 项适用的基础检查中通过了 3 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。

它需要哪些密钥或代码？

注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。

它在我的电脑上运行还是在云端？

两种方式都可以：安装在你的电脑上，或者连接云端版本。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（0.5.6）于5天前进入注册中心。

哪些应用可以使用它？

支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。它通过 URL 连接，所以接受远程 MCP 服务器的应用也可以使用，例如开启开发者模式的 ChatGPT。

有什么可以替代它？

同一分类中有：Figma Context MCP, Claude Real Video, Figma MCP Server

替代选择

同一分类中其他作者的服务器，按星标数排序。

如何看卡片：★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i

Figma Context MCP

作者：GLips

Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

在你的电脑上运行★ 16,165MIT5个月前更新

安装

Claude Real Video

作者：HUANGCHIHHUNGLeo

Let any LLM watch a video locally — and search everything it has ever watched.

在你的电脑上运行★ 2,284MIT2个月前更新

安装

Figma MCP Server

作者：figma

The Figma MCP server brings Figma design context directly into your AI workflow.

在云端运行★ 2,15213个月前更新

安装

作者的 README

打开 README

按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。

Agentic Mermaid

Beautiful diagrams, made with your agent.

Agentic Mermaid helps coding agents create styled diagrams from Mermaid source and edit existing diagrams through typed operations. Export SVG or PNG for documents, and ASCII or Unicode for terminal review.

It is forked from lukilabs/beautiful-mermaid. Published on npm as agentic-mermaid; the GitHub repository is adewale/agentic-mermaid; the live site is agentic-mermaid.dev.

A login flow with MFA, rendered directly by Agentic Mermaid. Mermaid source · Style and reproduction command

Live Demo & Samples · Live Editor

Ask your coding agent:

Read Instructions_for_agents.md in this repository, or https://agentic-mermaid.dev/llms.txt if you don't have a checkout. Draw Browser → API → Database using the hand-drawn style and nord-light palette. Verify it, then return the Mermaid source and an SVG.

Agent setup and skills · Try the same diagram in JavaScript

Docs: docs index · getting started · agent guide · agent API cookbook · design system · skills · fork differences · vs Mermaid & Beautiful Mermaid · changelog

Why Agentic Mermaid

Choose a built-in style, or keep your diagram's colors and fonts in a JSON style file. Inspect the rendered result before publishing.

You want	Agentic Mermaid gives you
An agent to draft the diagram	Mermaid source plus a verified render path
Beautiful defaults	Built-in looks such as `watercolor`, `blueprint`, `hand-drawn`, and `publication-figure`
Brand fit	Style + Palette stacks and custom JSON palettes you can keep in your repo
Safe edits later	`parseRegisteredMermaid` → family narrower → `mutate` → `verifyMermaid` → `serializeMermaid`
Reviewable artifacts	SVG, PNG, ASCII, Unicode, and JSON layout from the same source

The agent workflow is the guardrail behind the polish: agents should not guess from pixels, concatenate strings, or regenerate whole diagrams when a structured edit is available.

Highlights

Discover supported diagrams and edits — am capabilities --json reports what the installed version supports, including registered extensions.
SVG, PNG, ASCII, Unicode, JSON — export images, review diagrams in the terminal, or inspect positions as JSON layout.
Render SVG without a browser — the synchronous JavaScript API runs without a DOM or Puppeteer.
Composable styles — { style: ['hand-drawn', 'dracula'] } combines a look with a palette. Set colors, fonts, strokes, fills and backdrops in a JSON style. seed re-rolls the ink, never the layout.
Match your editor's colors — choose a built-in palette, theme from two colors, or adapt a VS Code theme with Shiki.
Agent-native editing — use typed operations for modeled syntax. Inputs with unmodeled syntax retain their source; source-preserving edits cover selected Class and Flowchart operations.
CLI + MCP + library — use am, connect agentic-mermaid-mcp, or import agentic-mermaid/agent for rendering and editing. See the API reference for the other library and browser entry points.

Installation

Requires Node.js 22 or later, or Bun 1.4.0 or later. The package is ESM-only; use import, or dynamic import() from CommonJS.

npm install agentic-mermaid       # or: bun add agentic-mermaid / pnpm add agentic-mermaid

npx --no-install agentic-mermaid --help

The am … examples below name the published bin. After a project-local npm install, invoke it from a shell as npx --no-install agentic-mermaid … (or from an npm script as am …). From a source checkout, use bun run bin/am.ts … instead.

Output quick starts

Use agentic-mermaid/agent when you want one import path for styled renders, output formats, and the structured edit API.

SVG

Save this as diagram.mjs:

import { writeFileSync } from 'node:fs'

import { renderMermaidSVG } from 'agentic-mermaid/agent'

const svg = renderMermaidSVG(flowchart LR Browser --> API --> Database, { style: ['hand-drawn', 'nord-light'], security: 'strict', })

writeFileSync('diagram.svg', svg)

node diagram.mjs

Open diagram.svg to see Browser → API → Database in the hand-drawn style with the nord-light palette.

PNG

import { writeFileSync } from 'node:fs'

import { renderMermaidPNG } from 'agentic-mermaid/agent'

const png = renderMermaidPNG(flowchart TD Start --> Done, { fitTo: { width: 1200 }, background: '#fff', })

writeFileSync('diagram.png', png)

CLI equivalent:

am render diagram.mmd --format png --output diagram.png

ASCII / Unicode

import { renderMermaidASCII } from 'agentic-mermaid/agent'

const unicode = renderMermaidASCII(flowchart LR A --> B) const ascii = renderMermaidASCII(flowchart LR A --> B, { useAscii: true })

Agent quick start

If your coding agent can read repo files, point it at:

skills/agentic-mermaid-diagram-workflow/SKILL.md for diagram authoring/editing.
skills/agentic-mermaid-live-editor/SKILL.md for editor changes.

If it only has shell access:

am --agent-instructions

am capabilities --json am preview diagram.mmd --security strict --open am mutate diagram.mmd --op '{"kind":"set_label","target":"API","label":"API gateway"}' --json

For an existing diagram, follow parse → narrow → mutate → verify → serialize. For a new diagram, author Mermaid source, then parse and verify it. To wire Agentic Mermaid into another repo, run npx agentic-mermaid init-agent (or bun run bin/am.ts init-agent from a source checkout); it writes a non-clobbering AGENTS.md section, root skills/ bundle, and .mcp.json sample.

Use strict preview for human inspection and mutate --op/--ops for verified one-shot or batched edits.

For multi-step MCP edits, use Code Mode execute(code) with the same mermaid.* SDK names. See the agent API cookbook for library, CLI and MCP recipes.

MCP server

Agentic Mermaid ships a Model Context Protocol server so MCP-capable agents can render and safely edit diagrams without shelling out.

After installation, start the local stdio server:

npx --no-install agentic-mermaid mcp

Use the library, CLI or local MCP for private diagrams, offline work, larger inputs or local PNG files. The MCP transport guide covers HTTP/SSE and file/URL artifacts; agent setup shows how to generate a sample client configuration. The tool reference and Code Mode guide explains the available tools and multi-step edits.

An optional public, unauthenticated MCP endpoint runs at https://agentic-mermaid.dev/mcp. It accepts MCP JSON-RPC rather than REST render requests, caps inputs at 64 KB and returns PNG as base64. Hosted calls send your source or code to the server; see the privacy notice. Directory maintainers can use the MCP listing record.

Structured edit example

Change the API node's displayed label while keeping its connection to DB:

import { parseRegisteredMermaid, asFlowchart, mutate, verifyMermaid, serializeMermaid } from 'agentic-mermaid/agent'

const parsed = parseRegisteredMermaid('flowchart TD\n API --> DB') if (!parsed.ok) throw new Error('parse failed')

const flow = asFlowchart(parsed.value) if (!flow) throw new Error(not a structured flowchart: ${parsed.value.kind})

const next = mutate(flow, { kind: 'set_label', target: 'API', label: 'API gateway' }) if (!next.ok) throw new Error(next.error.message)

const verify = verifyMermaid(next.value) if (!verify.ok) throw new Error(JSON.stringify(verify.warnings, null, 2))

const source = serializeMermaid(next.value) console.log(source)

Output:

flowchart TD

API[API gateway] --> DB

The node ID is still API; its displayed label is now API gateway, and the API → DB connection remains. Verification checks for structural and geometry problems; review the rendered result and confirm it expresses your intent before saving.

Rules:

Use the matching exported as narrower before mutating an existing structured diagram.
Mutation ops use kind, not type.
Run verifyMermaid before every commit point.
Do not call mutate on opaque fallback bodies; the narrower returns null for unmodeled syntax.
For opaque Class/Flowchart inputs, bounded source-preserving edits support Class add_member/remove_member and Flowchart set_label/rename_node. Use mutatePreservingSource, applyOps with mode: 'source-preserving', or CLI --preserve-source; MCP and the editor worker expose the same explicit mode. Save exact source and inspect the retained portability diagnostics; ambiguous ownership and unsupported dependencies refuse atomically.

Supported diagram families

Run am capabilities --json for the supported families and edit operations in your installed version. See diagram families for syntax examples and compatibility notes.

Live editor and examples

Examples — supported families, Style + Palette combinations, and the rich shared examples corpus.
Live editor — SVG/PNG exports and URL sharing.
examples/agent-loop.ts
examples/mcp-vs-cli-complex-diagrams.ts
[examples/agent-improve-auth-flow.ts](https://gi

只显示了开头部分；其余内容请在仓库中阅读

Agentic Mermaid

概览

PopNx MCP 的三大支柱

它能帮你做什么

安装

安装之前

或者在你的电脑上运行

或者在你的电脑上运行

或者在你的电脑上运行

或者在你的电脑上运行

它能做什么

基础检查i

作者与仓库一致

仍在维护

有许可证

端点有响应

使用 OAuth 登录

工具描述中没有隐藏指令

与“设计、图片与音频”中的其他服务器比较i

常见问题

替代选择

Figma Context MCP

Claude Real Video

Figma MCP Server

作者的 README

Agentic Mermaid

Why Agentic Mermaid

Highlights

Installation

Output quick starts

SVG

PNG

ASCII / Unicode

Agent quick start

MCP server

Structured edit example

Supported diagram families

More documentation

Live editor and examples