search_literature_extended
AI agents call search_literature_extended to retrieve information from Metis Public Health without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name clearly indicates a literature search function. Given the server context (local-first research companion with indexed PDF library), this tool retrieves or queries data from the user's document collection without modifying it. No side effects are implied. The Read category is appropriate despite the empty description, as the semantic meaning of 'search_literature_extended' is unambiguous.
From the tool's definition Tool name 'search_literature_extended' indicates a search operation over indexed PDF library. Sibling tools include 'add_' operations (write) and 'analyze_' (execute), but this tool's name suggests read-only querying.
Attacks that exploit this kind of access
search_literature_extended. It is categorised as a Read tool in the Metis Public Health MCP Server, which means it retrieves data without modifying state.
Register the Metis Public Health MCP server in PolicyLayer and add a rule for search_literature_extended: 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 Metis Public Health. Nothing to install.
search_literature_extended 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_literature_extended 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_literature_extended. 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_literature_extended is provided by the Metis Public Health MCP server (sveritg/metis_ph). 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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