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ca.arrowmem/arrowmem-mcp
ca.arrowmem/arrowmem-mcp in the official MCP registry.
Endpoint https://mcp.arrowmem.ca/mcp.
The registry describes it as: Free Ollama hardening checker, plus tools for privacy architecture and the Data Dignity Standard.
We read its 14 tools on 2026-10-26. Nothing in them matched our tool-poisoning rules.
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
check_exposed_services check_ollama_hardening check_ollama_loopback disable_alert_relay enrol_alert_relay get_arrowbridge_info get_data_dignity_standard get_hardening_guide get_org_info get_privacy_model get_verified_business_facts inventory_ai_agents list_packs rotate_alert_relay
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/ca-arrowmem-arrowmem-mcp)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.