Put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code.
MCPpedia last refreshed this data
io.github.vince-gonzalez/coldhat is an MCP server that put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code. Its tool list has not been published yet over http, requires no API key, and scores 71/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients - only the file and path differ.
https://coldhat.f-keys.com/mcpRemote servers are added as connectors, not in claude_desktop_config.json, which is for local servers.
Are you the author?
Add this badge to your README to show your security score and help users find safe servers.
Put on anyone's AI rules by GitHub username: fetches their hat.md and its hat code.
This server supports HTTP transport. Be the first to test it - help the community know if it works.
Five weighted categories - click any category to see the underlying evidence.
No known CVEs.
No package registry to scan.
Click any tool to inspect its schema.
Be the first to review
Have you used this server?
Share your experience - it helps other developers decide.
Sign in to write a review.
Others in other
deja-vu: local memory over the session histories of forty-three coding agents.
MCP WordPress Remote proxy server
专门为 agent 打造的 agent 搜索工具,具备多语言搜索能力,覆盖中文/英文/学术/代码/购物/金融/新闻/百科。
Searchable football data provider documentation for AI coding agents. Like Context7 for football data.
MCP Security Weekly
Get CVE alerts and security updates for io.github.vince-gonzalez/coldhat and similar servers.
Start a conversation
Ask a question, share a tip, or report an issue.
Sign in to join the discussion.
╔════════════════════════════════════════════════════════════════════════════════════════════╗
║ ║
║ ██████╗ ██████╗ ██╗ ██████╗ ██╗ ██╗ █████╗ ████████╗ ║
║ ██╔════╝██╔═══██╗██║ ██╔══██╗██║ ██║██╔══██╗╚══██╔══╝ ║
║ ██║ ██║ ██║██║ ██║ ██║███████║███████║ ██║ ║
║ ██║ ██║ ██║██║ ██║ ██║██╔══██║██╔══██║ ██║ ║
║ ╚██████╗╚██████╔╝███████╗██████╔╝██║ ██║██║ ██║ ██║ ║
║ ╚═════╝ ╚═════╝ ╚══════╝╚═════╝ ╚═╝ ╚═╝╚═╝ ╚═╝ ╚═╝ ║
║ ║
║ will another model keep your rules? ║
║ ║
╚════════════════════════════════════════════════════════════════════════════════════════════╝
coldHat puts working rules on any AI chat in one line. Type this into Claude, ChatGPT or Grok:
open sesame coldhat.f-keys.com/u/vince-gonzalez/frontier
The assistant reads the hat, answers with its hat code to prove it read it, and works by those rules for the rest of the chat. Live at coldhat.f-keys.com.

Every hat ends with a seal. If the assistant can't quote it, the hat was cut off, and it tells you.
| You want to | Type this after open sesame |
|---|---|
| Wear a person's hat | coldhat.f-keys.com/u/<github-user> or .../u/<github-user>/<hat> |
| Wear one of Fabric's patterns | coldhat.f-keys.com/fabric/extract_wisdom |
| Wear a prompts.chat prompt | coldhat.f-keys.com/prompts/linux-terminal |
| Stack up to three, later layers winning | coldhat.f-keys.com/u/vince-gonzalez/editor+fabric/analyze_claims |
| Merge a stack by slot instead of piling it up | coldhat.f-keys.com/amp/fabric/extract_ideas+fabric/analyze_claims |
| Keep rules no other layer can override | put them under ## Locked in your hat |
| Wear one exact version | coldhat.f-keys.com/u/<user>/<hat>@<commit> |
| Check a reply wore the current hat | coldhat.f-keys.com/verify?address=<hat address> with the reply |
Every reply starts with the hat mark and code, for example 🎩💨⛄🔬 Hat's on · b7d19023:
a top hat, a gust, Frosty, then one icon per layer.
Apps that take connectors can add https://coldhat.f-keys.com/mcp once and call any of
these by name (tools wear_hat and wear_stack). A chat that can't browse can still wear
a hat: Copy hat on coldhat.f-keys.com, then paste.
| Hat | Type this |
|---|---|
| Code reviewer: verdict first, findings by severity with line, failure and fix | open sesame coldhat.f-keys.com/u/vince-gonzalez/reviewer |
| Grant writer: rubric first, every number sourced, every limit met | open sesame coldhat.f-keys.com/u/vince-gonzalez/grants |
| Plain-English editor: shorter, clearer, still your voice | open sesame coldhat.f-keys.com/u/vince-gonzalez/editor |
| Frontier: mechanical register, rules over manners | open sesame coldhat.f-keys.com/u/vince-gonzalez/frontier |
A hat is a hat.md in a public GitHub repository named coldhat, so only its owner can
change it. Extra hats go in hats/<name>.md and live at /u/<user>/<name>. Write one at
coldhat.f-keys.com/make, bring the instructions you
already keep for other assistants at [coldhat.f-key