AI agents call get_article_fulltext_links to retrieve information from Pubmed Search without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves fulltext links for articles—a read operation that queries or fetches data from academic databases. It does not create, modify, delete, or execute arbitrary operations. The absence of a description lowers confidence slightly, but the 'get_' prefix and the server's stated purpose as a literature search assistant support classification as a Read operation with low severity.
From the tool's definition Tool name 'get_article_fulltext_links' indicates retrieval of article links/metadata. The server is a research assistant for literature search and analysis.
Documented attack patterns abuse exactly the kind of access get_article_fulltext_links gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Pubmed Search, and nothing reaches the server without passing your rules. This is the rule we recommend for get_article_fulltext_links:
{
"version": "1",
"default": "deny",
"tools": {
"get_article_fulltext_links": {}
}
}get_article_fulltext_links is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_article_fulltext_links. It is categorised as a Read tool in the Pubmed Search MCP Server, which means it retrieves data without modifying state.
Register the Pubmed Search MCP server in PolicyLayer and add a rule for get_article_fulltext_links: 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 Pubmed Search. Nothing to install.
get_article_fulltext_links 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 get_article_fulltext_links 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 get_article_fulltext_links. 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.
get_article_fulltext_links is provided by the Pubmed Search MCP server (u9401066/pubmed-search-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Pubmed Search, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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63 Pubmed Search tools catalogued and risk-classified — across an index of 43,000+ MCP servers.