Get detailed metrics for specific papers including citation count,
AI agents call get_paper_metrics to retrieve information from NASA ADS 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 bibliometric data (citation counts and related metrics) from the NASA ADS system. It performs a read-only operation with no capability to modify, delete, or execute code. The data retrieved is public scientific metadata. There is no destructive, financial, or execute risk. Confidence is high given the clear read-only nature of 'get' operations on metrics.
From the tool's definition Tool name 'get_paper_metrics' and description 'Get detailed metrics for specific papers including citation count' indicate retrieval of paper metrics without modification or side effects.
Documented attack patterns abuse exactly the kind of access get_paper_metrics gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and NASA ADS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_paper_metrics:
{
"version": "1",
"default": "deny",
"tools": {
"get_paper_metrics": {}
}
}get_paper_metrics is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get detailed metrics for specific papers including citation count,. It is categorised as a Read tool in the NASA ADS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the NASA ADS MCP Server MCP server in PolicyLayer and add a rule for get_paper_metrics: 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 NASA ADS MCP Server. Nothing to install.
get_paper_metrics 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_paper_metrics 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_paper_metrics. 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_paper_metrics is provided by the NASA ADS MCP Server MCP server (prtc/nasa-ads-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from NASA ADS MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 NASA ADS MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.