Search the Medical Subject Headings (MeSH) vocabulary. Useful for finding standardized biomedical terms, tree numbers, and scope notes.
AI agents call search_mesh to retrieve information from Mcp Pubmed without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a vocabulary search against a controlled biomedical terminology database. It retrieves information only—standardized terms, tree numbers, and scope notes—without modifying data, executing code, or triggering side effects. It is a classic Read operation similar to the sibling tool search_articles, which also queries a database for informational retrieval.
From the tool's definition Tool name is 'search_mesh' and description states it 'Search[es] the Medical Subject Headings (MeSH) vocabulary' to find 'standardized biomedical terms, tree numbers, and scope notes.' These are retrieval and query operations with no modification, creation,…
Attacks that exploit this kind of access
Search the Medical Subject Headings (MeSH) vocabulary. Useful for finding standardized biomedical terms, tree numbers, and scope notes. It is categorised as a Read tool in the Mcp Pubmed MCP Server, which means it retrieves data without modifying state.
Register the Mcp Pubmed MCP server in PolicyLayer and add a rule for search_mesh: 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 Mcp Pubmed. Nothing to install.
search_mesh 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_mesh 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_mesh. 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_mesh is provided by the Mcp Pubmed MCP server (petrefiedthunder/mcp-pubmed). 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.
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