caddy_add_federation_site

SERVERCrow SOURCEkh0pper/crow

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/kh0pper-crow/caddy-add-federation-site.md

WHAT IT DOES

What caddy_add_federation_site does on Crow

AI agents use caddy_add_federation_site to create or update resources in Crow, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Crow environment.

RISK

Why caddy_add_federation_site is rated Medium

This tool creates or modifies reverse-proxy configuration, which is a reversible Write operation. While configuration changes can have broad effects on system behavior and network access (justifying 'high' severity due to blast radius if misconfigured), the operation is not Destructive (data is not irreversibly deleted) and not Execute (no arbitrary code execution).

From the tool's definition The tool "Add a federation-aware reverse-proxy site block" creates or modifies Caddy configuration directives.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs caddy_add_federation_site safely

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

caddy_add_federation_site Rate-limited

caddy_add_federation_site stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "caddy_add_federation_site": {
      "limits": [
        {
          "counter": "caddy_add_federation_site_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about caddy_add_federation_site

What does the caddy_add_federation_site tool do? +

Add a federation-aware reverse-proxy site block. Emits directives for the chosen profile (matrix | activitypub | peertube | generic-ws) — websocket upgrade, large request body, proxy timeouts — plus optional /.well-known/ handlers. Idempotent: re-running with the same domain replaces the existing block. It is categorised as a Write tool in the Crow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on caddy_add_federation_site? +

Register the Crow MCP server in PolicyLayer and add a rule for caddy_add_federation_site: 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 caddy_add_federation_site? +

caddy_add_federation_site is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit caddy_add_federation_site? +

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

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

caddy_add_federation_site 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.

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