MP4 clip URL for a Frigate event. Event must have has_clip=true (check via list_events).
AI agents call crow_frigate_clip_url to retrieve information from Crow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a straightforward retrieval operation—fetching a URL for a pre-existing video clip from a Frigate surveillance system. There are no side effects, no code execution, no data modification, and no deletion. The worst-case misuse (an AI agent requesting clip URLs without authorization) would be limited to information disclosure, making it a low-severity read operation.
From the tool's definition The tool name 'crow_frigate_clip_url' and description 'MP4 clip URL for a Frigate event' indicate it retrieves and returns a URL for an existing video clip.
Documented attack patterns abuse exactly the kind of access crow_frigate_clip_url gives an agent:
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_frigate_clip_url:
{
"version": "1",
"default": "deny",
"tools": {
"crow_frigate_clip_url": {}
}
} crow_frigate_clip_url is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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MP4 clip URL for a Frigate event. Event must have has_clip=true (check via list_events). It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_frigate_clip_url: 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.
crow_frigate_clip_url is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the crow_frigate_clip_url 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.
Set action: deny in the PolicyLayer policy for crow_frigate_clip_url. 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.
crow_frigate_clip_url 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.
Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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576 Crow tools catalogued and risk-classified — across an index of 43,000+ MCP servers.