cairnscore

Check or submit trust and reputation scores for data sources and capabilities (URLs, REST APIs, MCP servers, tools) via the Cairn API, and discover the right tool for a task by free-text query. Use BEFORE consuming a non-trivial web source or invoking an MCP/tool you haven't established trust in, AND AFTER any such interaction to record a rating. Triggers: about to fetch a URL, call an MCP tool, scrape a page, or hit an external API; just finished any of those; the user asks to check or rate a source, asks "which tool for X" / "what's cheapest/fastest", or mentions Cairn. Skip routine file reads, well-known docs sites already accepted, and low-stakes one-shot replies. Even when the user doesn't say "check the score," default to using this skill for any source whose trustworthiness is non-obvious — accumulated ratings are what lets the system learn.