Search for metric definitions in the Solana Rust codebase
AI agents call search_rust_code to retrieve information from Solana Metrics 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 search operation to locate and retrieve metric definitions without modifying, executing, or deleting any data. It is a passive information retrieval operation with no side effects, fitting the 'Read' category. The severity is low because searching code definitions poses minimal risk even if an AI agent misuses it—it cannot execute code, modify systems, or cause harm.
From the tool's definition Tool name 'search_rust_code' and description 'Search for metric definitions in the Solana Rust codebase' indicate a read-only operation that queries or retrieves data from source code.
Attacks that exploit this kind of access
Search for metric definitions in the Solana Rust codebase. It is categorised as a Read tool in the Solana Metrics MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Solana Metrics MCP Server MCP server in PolicyLayer and add a rule for search_rust_code: 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 Solana Metrics MCP Server. Nothing to install.
search_rust_code 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 search_rust_code 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 search_rust_code. 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.
search_rust_code is provided by the Solana Metrics MCP Server MCP server (wcampbellgalaxy/solana-metrics-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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