Search MMWR articles by topic via PubMed. Searches the Morbidity and Mortality Weekly Report journal for articles matching your query. Use for finding CDC guidance, outbreak reports, surveillance summaries, and public health recommendations. Args: query: Search terms (e.g. 'COVID-19 vaccine effec...
Risk signalsAccepts freeform code/query input (query)
Part of the CDC MMWR Reports server.
Free to start. No card required.
AI agents call search_mmwr to retrieve information from CDC MMWR Reports without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though search_mmwr only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"search_mmwr": {}
}
}See the full CDC MMWR Reports policy for all 4 tools.
These attack patterns abuse exactly the kind of access search_mmwr gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Search MMWR articles by topic via PubMed. Searches the Morbidity and Mortality Weekly Report journal for articles matching your query. Use for finding CDC guidance, outbreak reports, surveillance summaries, and public health recommendations. Args: query: Search terms (e.g. 'COVID-19 vaccine effectiveness', 'influenza surveillance', 'measles outbreak 2024'). limit: Maximum number of results to return (default 20, max 100).. It is categorised as a Read tool in the CDC MMWR Reports MCP Server, which means it retrieves data without modifying state.
Register the CDC MMWR Reports MCP server in PolicyLayer and add a rule for search_mmwr: 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 CDC MMWR Reports. Nothing to install.
search_mmwr 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_mmwr 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_mmwr. 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_mmwr is provided by the CDC MMWR Reports MCP server (https://mcp.olyport.com/cdc-mmwr/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 CDC MMWR Reports tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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