crow_discover
Discover available actions and their parameter schemas. No args = list categories. category = list actions. category + action = full schema.
This record as markdown: /tools/kh0pper-crow/crow-discover.md
What crow_discover does on Crow
AI agents call crow_discover to retrieve information from Crow without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why crow_discover is rated Low
This tool purely queries and retrieves metadata about available actions and their parameter schemas. It is informational only—it reads system information without modifying, executing code, deleting data, or committing financial transactions. Discovery and introspection tools are benign read operations with minimal attack surface.
From the tool's definition Tool is named 'crow_discover' and performs discovery/schema inspection operations: 'list categories', 'list actions', and 'full schema' retrieval. No side effects, data modification, execution, or state changes are described.
Attacks that exploit this kind of access
The rule that runs crow_discover 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 crow_discover, this is the rule to start with:
crow_discover is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_discover call is checked against it from then on.
Questions about crow_discover
Discover available actions and their parameter schemas. No args = list categories. category = list actions. category + action = full schema. 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_discover: 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_discover 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_discover 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_discover. 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_discover 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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