deadends.dev MCP Server

by deadends Your server? Claim it

not responding

deadends.dev is listed as active in the registry but did not answer our last check. Last commit 2 Nov 2026.

Structured failure knowledge for AI agents — dead ends, workarounds, error chains

Uptime history 87 days of history · worst day 0%

87 days agonow

0.0%

Uptime 24h

0 of 92 checks

—

Tools

hidden behind auth

359 ms

Response time

average over 24h

Stars

last commit 2 Nov 2026

What the code does

We read the source, 5 d ago · rules 995398eba69f

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.

Reaches cloud metadata service data/canons/cloud/gcp-metadata-server-timeout/gcp-compute-any.json:6

    "signature": "metadata.google.internal timeout - GCP metadata server unreachable",

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.

Runs an external command generator/pipeline.py:60, generator/reverify.py:99

    result = subprocess.run(

Touches key and credential files archive/bulk_generate_history/bulk_generate_v3.py:512, data/canons/aws/invalid-security-token/awscli2-linux.json:58, data/canons/aws/no-credentials-error/awscli2-linux.json:51 и ещё 5

            "eval $(ssh-agent) && ssh-add ~/.ssh/id_ed25519 && ssh -T [email protected]",

Asks for container control access generator/build_site.py:3254

        "docker": ["/var/run/docker.sock", "/dev/sda1", "172.17.0.0/16"],

Page executes code built at runtime generator/templates/search.html:251

        resultsDiv.innerHTML = html;

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

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch deadends.dev and you get told the day something new turns up.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add deadends-dev --transport http https://deadends.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://deadends.dev/mcp

~/.codex/config.toml

[mcp_servers.deadends-dev]
url = "https://deadends.dev/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Endpoints

URL	Transport	State	Latency	Checked
https://deadends.dev/mcp	streamable-http	answering	359 ms	2 min ago

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deadends.dev — questions

Answers built from our own checks of this server.

Is deadends.dev working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 359 ms. The bar chart above shows every period we have measured.

The registry lists deadends.dev as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect deadends.dev?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does deadends.dev need an API key?

No. deadends.dev completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

Is deadends.dev open source?

The code is open source: it is published under the MIT licence, written in Python and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at deadends.dev, which runs on its operator's own terms.