List all available OpenZeppelin contracts and libraries, optionally filtered by category
AI agents call list_oz_modules to retrieve information from OpenZeppelin Docs MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries documentation metadata (contract and library names, categories) without side effects. It is a standard informational read operation typical of documentation APIs. No code execution, data modification, deletion, or financial transaction occurs. Severity is low because misuse causes no harm—an AI agent cannot damage systems or data by listing available contracts.
From the tool's definition Tool performs 'list all available OpenZeppelin contracts and libraries' with optional filtering—a pure retrieval operation with no mutation, deletion, or execution capability.
Attacks that exploit this kind of access
List all available OpenZeppelin contracts and libraries, optionally filtered by category. It is categorised as a Read tool in the OpenZeppelin Docs MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenZeppelin Docs MCP Server MCP server in PolicyLayer and add a rule for list_oz_modules: 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 OpenZeppelin Docs MCP Server. Nothing to install.
list_oz_modules 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 list_oz_modules 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 list_oz_modules. 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.
list_oz_modules is provided by the OpenZeppelin Docs MCP Server MCP server (pbuda/openzeppelin-docs-mcp). 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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