AI agents call mirror_query_contract_logs to retrieve information from HashPilot without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries smart contract event logs from a Hedera Mirror Node, which is a read-only operation that retrieves historical blockchain data without modifying, executing code, deleting data, or moving funds. The use of 'query' and the emphasis on returning data without mentioning any side effects confirms this is a Read operation with low severity and minimal blast radius if misused by an AI agent.
From the tool's definition Tool name contains 'query' and description states it 'Returns log data, topics, block info, and transaction details' with 'No API key required,' indicating read-only retrieval of blockchain data with no state changes.
Attacks that exploit this kind of access
Query smart contract event logs from Hedera Mirror Node. Returns log data, topics, block info, and transaction details. No API key required. It is categorised as a Read tool in the HashPilot MCP Server, which means it retrieves data without modifying state.
Register the HashPilot MCP server in PolicyLayer and add a rule for mirror_query_contract_logs: 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 HashPilot. Nothing to install.
mirror_query_contract_logs 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 mirror_query_contract_logs 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 mirror_query_contract_logs. 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.
mirror_query_contract_logs is provided by the HashPilot MCP server (justmert/hashpilot). 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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