crow_identity_verify
Verify an attestation for a given (crow_id, app, handle) triple. Fetches the latest non-revoked attestation from the local database and cryptographically verifies the signature. For cross-instance verification, the caller
This record as markdown: /tools/kh0pper-crow/crow-identity-verify.md
What crow_identity_verify does on Crow
AI agents call crow_identity_verify 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_identity_verify is rated Low
This tool retrieves attestation data from a local database and performs a cryptographic verification check. It has no side effects—it does not create, modify, delete, or execute operations. The operation is purely informational and defensive in nature (verification). This is a classic Read operation with low severity since misuse would only return verification results without enabling harmful actions.
From the tool's definition Tool performs verification of attestations by fetching and cryptographically verifying signatures; no modification, deletion, or code execution is performed.
Attacks that exploit this kind of access
The rule that runs crow_identity_verify 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_identity_verify, this is the rule to start with:
crow_identity_verify 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_identity_verify call is checked against it from then on.
Questions about crow_identity_verify
Verify an attestation for a given (crow_id, app, handle) triple. Fetches the latest non-revoked attestation from the local database and cryptographically verifies the signature. For cross-instance verification, the caller. 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_identity_verify: 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_identity_verify 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_identity_verify 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_identity_verify. 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_identity_verify 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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