crow_trilium_recent

THE RISK

Low Risk

Why crow_trilium_recent needs a policy

This tool queries and retrieves information about recently modified notes. The word 'List' indicates a data retrieval operation with no side effects. There is no creation, modification, deletion, or execution capability. The blast radius of misuse is minimal—an AI agent could only retrieve metadata about note history, which does not compromise data integrity or security.

From the tool's definition Tool name and description: 'List recently modified notes in TriliumNext' — a read-only operation that retrieves metadata about notes without modifying or executing anything.

Documented attack patterns abuse exactly the kind of access crow_trilium_recent gives an agent:

POLICY

How to control crow_trilium_recent

PolicyLayer is an MCP gateway — it sits between your AI agents and Crow, and nothing reaches the server without passing your rules. This is the rule we recommend for crow_trilium_recent:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crow_trilium_recent": {}
  }
}

crow_trilium_recent is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Crow — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about crow_trilium_recent

What does the crow_trilium_recent tool do? +

List recently modified notes in TriliumNext. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on crow_trilium_recent? +

Register the Crow MCP server in PolicyLayer and add a rule for crow_trilium_recent: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Crow. Nothing to install.

What risk level is crow_trilium_recent? +

crow_trilium_recent is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit crow_trilium_recent? +

Yes. Add a rate_limit block to the crow_trilium_recent rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block crow_trilium_recent completely? +

Set action: deny in the PolicyLayer policy for crow_trilium_recent. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides crow_trilium_recent? +

crow_trilium_recent is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →