AI agents call hardhat_get_artifacts 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.
This tool retrieves pre-compiled smart contract artifacts (ABI definitions and bytecode) for inspection or reference purposes. It has no side effects, does not execute code, does not modify any state, and does not move funds. It is purely informational/retrieval in nature, fitting the Read category definition of querying or retrieving data without side effects.
From the tool's definition Tool name is 'hardhat_get_artifacts' and description states 'Get compiled contract artifacts (ABI, bytecode, etc.)' - uses the word 'Get' and performs a retrieval operation with no modification or execution.
Attacks that exploit this kind of access
Get compiled contract artifacts (ABI, bytecode, etc.). 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 hardhat_get_artifacts: 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.
hardhat_get_artifacts 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 hardhat_get_artifacts 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 hardhat_get_artifacts. 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.
hardhat_get_artifacts 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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