Retrieve a reputation score for a set of file hashes
AI agents call lookup_file_reputation to retrieve information from Pangea MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only lookup of file reputation data based on provided hashes. It queries an external service (Pangea's security services) and returns reputation scores with no side effects, modifications, or execution of code. This is a classic Read category operation—similar to search or fetch operations.
From the tool's definition Tool name 'lookup_file_reputation' and description 'Retrieve a reputation score for a set of file hashes' indicate a query operation that retrieves data without modifying or executing anything.
Attacks that exploit this kind of access
Retrieve a reputation score for a set of file hashes. It is categorised as a Read tool in the Pangea MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Pangea MCP Server MCP server in PolicyLayer and add a rule for lookup_file_reputation: 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 Pangea MCP Server. Nothing to install.
lookup_file_reputation 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 lookup_file_reputation 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 lookup_file_reputation. 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.
lookup_file_reputation is provided by the Pangea MCP Server MCP server (pangeacyber/pangea-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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