ctgov-list-stats
Get overall ClinicalTrials.gov registry size statistics (/stats/size).
This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/ctgov-list-stats.md
What ctgov-list-stats does on Meta Data Mcp
AI agents call ctgov-list-stats to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why ctgov-list-stats is rated Low
This tool performs a read-only operation against the ClinicalTrials.gov public API endpoint (/stats/size) to retrieve statistical information about the registry. It has no side effects, does not modify data, and carries minimal risk if misused—an agent could only retrieve publicly available statistical summaries.
From the tool's definition Tool name 'ctgov-list-stats' and description 'Get overall ClinicalTrials.gov registry size statistics' indicate a query operation that retrieves aggregate statistics from a public registry. No modification, execution, or deletion of data occurs.
Attacks that exploit this kind of access
The rule that runs ctgov-list-stats safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ctgov-list-stats, this is the rule to start with:
ctgov-list-stats is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every ctgov-list-stats call is checked against it from then on.
Questions about ctgov-list-stats
Get overall ClinicalTrials.gov registry size statistics (/stats/size). It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.
Register the Meta Data MCP server in PolicyLayer and add a rule for ctgov-list-stats: 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 Meta Data Mcp. Nothing to install.
ctgov-list-stats 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 ctgov-list-stats 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 ctgov-list-stats. 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.
ctgov-list-stats is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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