Put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code.
Connect Remote server
claude mcp add --transport http coldhat 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"
}
}
}
Settings > Connectors > Add custom connector
URL: https://coldhat.f-keys.com/mcp
Tools 3 found in our last check
wear_hatFetch a person's coldHat: their working rules, voice and dated facts. Call it when the user asks to put on a hat or says "open sesame" with a name or a coldhat.f-keys.com/u/ address, then follow the hat for the rest of the conversation, starting with the first reply it describes.
wear_stackFetch any coldHat address: a person's hat, one of Fabric's patterns, a prompts.chat prompt, or up to three of them stacked with "+". Call it when the user says "open sesame" with a coldhat.f-keys.com address containing fabric/, prompts/ or +, then follow the result for the rest…
verify_hatCheck whether a reply wore the current version of a hat: compares the hat code and seal the reply quotes with the hat as served now. Answers verified, stale (an older or cached version), cut-off, seal-missing, seal-wrong, pasted or not-worn.
Details
| Endpoint | https://coldhat.f-keys.com/mcp (Streamable HTTP) |
| First published | 11 Oct 2026 |
| Last updated | 11 Oct 2026 |
| Registry name | io.github.vince-gonzalez/coldhat |
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