check_radicale

Check Radicale CalDAV/CardDAV server reachability via GET /. Returns 200 or 401 when service is up. Default port 5232.

SERVERMcp Nettools SOURCEaaronckj/mcp-nettools

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/aaronckj-mcp-nettools/check-radicale.md

WHAT IT DOES

What check_radicale does on Mcp Nettools

AI agents call check_radicale to retrieve information from Mcp Nettools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why check_radicale is rated Low

This tool queries the reachability status of a Radicale server using a simple HTTP GET request. It retrieves information about whether a service is operational without creating, modifying, deleting, or executing any code. This is a pure diagnostic read operation with minimal blast radius—worst case, it performs an HTTP request that the target server logs.

From the tool's definition Tool performs a GET request to check reachability (via GET /), returns status codes (200 or 401), with no description of modifying, deleting, or executing operations on the target system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs check_radicale safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Nettools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For check_radicale, this is the rule to start with:

check_radicale Allowed

check_radicale is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Nettools, apply this rule, and every check_radicale call is checked against it from then on.

FAQ

Questions about check_radicale

What does the check_radicale tool do? +

Check Radicale CalDAV/CardDAV server reachability via GET /. Returns 200 or 401 when service is up. Default port 5232. It is categorised as a Read tool in the Mcp Nettools MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on check_radicale? +

Register the Mcp Nettools MCP server in PolicyLayer and add a rule for check_radicale: 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 Mcp Nettools. Nothing to install.

What risk level is check_radicale? +

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

Can I rate-limit check_radicale? +

Yes. Add a rate_limit block to the check_radicale 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 check_radicale completely? +

Set action: deny in the PolicyLayer policy for check_radicale. 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 check_radicale? +

check_radicale is provided by the Mcp Nettools MCP server (aaronckj/mcp-nettools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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