coldHat is answering right now. Last checked 10 min ago. It exposes 3 tools. Last commit 15 Oct 2026.
Put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code.
What changed 2
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 13 October 2026. No other catalogue keeps this.
What the code does
We have not read this server's code yet, 4 d ago · tools taken from the live server · rules 995398eba69f
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.
r = subprocess.run(cmd, cwd=cwd, capture_output=True, text=True)
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.
claude mcp add coldhat --transport http https://coldhat.f-keys.com/mcphttps://coldhat.f-keys.com/mcp[mcp_servers.coldhat]
url = "https://coldhat.f-keys.com/mcp"{
"mcpServers": {
"coldhat": {
"url": "https://coldhat.f-keys.com/mcp"
}
}
}{
"servers": {
"coldhat": {
"type": "http",
"url": "https://coldhat.f-keys.com/mcp"
}
}
}Available tools 3
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
wear_hat
wear_stack
verify_hat
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://coldhat.f-keys.com/mcp | streamable-http | answering | 221 ms | 10 min ago |
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coldHat — questions
Answers built from our own checks of this server.