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ThoughtDAG MCP Server

by chenxiachan Your server? Claim it
local only

ThoughtDAG runs on your own machine — the client starts it, so there is no endpoint to ping. 77 installs a week from npm. Last commit 7 Oct 2026.

Search local AI conversations by file or phrase and recall source turns. Four read-only tools.

Installs per day peak 292 · avg 36 · -64% w/w
a month agotoday
77
Installs / week
npm · thoughtdag
611
Stars
11 open issues
7 Oct 2026
Last commit
6 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 4 d ago · rules ccca72095570

A tool parameter reaches a dangerous call

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

A tool parameter reaches a dangerous call why_check.path → runtime/agents/claude.cjs:158, why_check.path → runtime/agents/claude.cjs:157
          const proc = spawn(b, args, { cwd, env: childEnv(), stdio: ['pipe', 'pipe', 'pipe'] });
Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

execSync(`/opt/homebrew/bin/ffmpeg -y -ss ${offset.toFixed(2)} -i "${webm}" -c:v libx264 -pix_fmt yuv420p -crf 18 -r 30 -movflags +faststart "${OUT}"`, { stdio: 'inherit' });
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  'iVBORw0KGgoAAAANSUhEUgAAAVQAAAHgCAIAAAB1qwKBAAAACXBIWXMAAAZPAAAGTwEE17RfAAAgAElEQVR42u2dZ1xU1/71N2Vo0puKoFJUbAgKFsTkihpLbLFeo4mJucnVazR2jSSxRCOxojGKIkFFBNEgKBFQLIACogIC0gXpIJ0ZZoapz4v9yX7OfwZLmimu7ws/zjn77LP3Pqw5U9asn4ZSqSQAgNcPTSwBABA/AADiBwBA/AAAiB8AAPEDACB+AADEDwCA+AEAED8AA…
Builds a file path from a variable runtime/agents/ops.cjs:34
    const target = path.join(dir, name);
execSync(`/opt/homebrew/bin/ffmpeg -y -ss ${offset.toFixed(2)} -i "${webm}" -c:v libx264 -pix_fmt yuv420p -crf 18 -r 30 -movflags +faststart "${OUT}"`, { stdio: 'inherit' });
Reads files and sends them to the network cli/src/lib.ts:164, server.mjs:601, dsh/lib/index.js:305
  try { entries = await fsp.readdir(dir, { withFileTypes: true }); } catch { return; }
Long encoded blob in source src/lib/example-graph.ts:27
const BRIEF_B64 = 'JVBERi0xLjQKMSAwIG9iago8PCAvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMiAwIFIgPj4KZW5kb2JqCjIgMCBvYmoKPDwgL1R5cGUgL1BhZ2VzIC9LaWRzIFszIDAgUiA0IDAgUl0gL0NvdW50IDIgPj4KZW5kb2JqCjMgMCBvYmoKPDwgL1R5cGUgL1BhZ2UgL1BhcmVudCAyIDAgUiAvTWVkaWFCb3ggWzAgMCA1OTUgODQyXSAvQ29udGVudHMgNSAwI…
Page executes code built at runtime website/index.html:2980
              element.innerHTML =
                language === "zh" ? element.dataset.zhHtml : element.dataset.enHtml;

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

A tool parameter here reaches a dangerous call

That is not a flaw by itself — but it is where things go wrong when it is not the job. We re-read this code on every release. Watch it and you hear from us the day another one appears.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add thoughtdag -- npx -y thoughtdag
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "thoughtdag": {
      "args": [
        "-y",
        "thoughtdag"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.thoughtdag]
command = "npx"
args = ["-y", "thoughtdag"]
.cursor/mcp.json
{
  "mcpServers": {
    "thoughtdag": {
      "args": [
        "-y",
        "thoughtdag"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "thoughtdag": {
      "args": [
        "-y",
        "thoughtdag"
      ],
      "command": "npx"
    }
  }
}

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ThoughtDAG — questions

Answers built from our own checks of this server.

Why is there no uptime for ThoughtDAG?
ThoughtDAG runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package thoughtdag was installed 77 times last week.
How do I connect ThoughtDAG?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls thoughtdag straight from npm; nothing to host, nothing to sign up for.
How many people use ThoughtDAG?
The npm package thoughtdag was installed 77 times in the last week. Week over week that is -64%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ThoughtDAG open source?
Yes — it is published under the MIT licence, written in TypeScript, 611 stars on GitHub and 11 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.