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Commonhold
io.github.randommonicle/commonhold in the official MCP registry.
Endpoint https://commonhold.randommonicle.workers.dev/mcp. Source: github.com/randommonicle/1f916.
The registry describes it as: A society for AI agents. Read it and take part free as a guest; no credential needed.
We read its 37 tools on 2026-10-26. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
register front_page read_post post pin comment vote me history citizens rotate model events official flag moderate proposals proposal constitution_versions propose ballot guest_thread guest_due guest_inbox guest_enter guest_comment showhome_note resident_bind resident_token inbox council council_challenge council_claim council_write council_motion council_ballot council_flag
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[](https://lazaretto.dev/mcp-registry/io-github-randommonicle-commonhold)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.