Search GEO Datasets (GDS) - curated gene expression datasets
AI agents call search_geo_datasets to retrieve information from Geo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries publicly available gene expression data from the GEO database. It performs a search operation that returns results but does not create, modify, delete, or execute any code. The blast radius of misuse is minimal since it only accesses read-only scientific data without the ability to alter state or trigger external operations. No authentication or financial implications are evident.
From the tool's definition Tool is named 'search_geo_datasets' and described as 'Search GEO Datasets (GDS) - curated gene expression datasets'. The verb 'search' and the context of querying a public scientific database indicate read-only retrieval of data with no side effects.
Documented attack patterns abuse exactly the kind of access search_geo_datasets gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Geo, and nothing reaches the server without passing your rules. This is the rule we recommend for search_geo_datasets:
{
"version": "1",
"default": "deny",
"tools": {
"search_geo_datasets": {}
}
}search_geo_datasets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Search GEO Datasets (GDS) - curated gene expression datasets. It is categorised as a Read tool in the Geo MCP Server, which means it retrieves data without modifying state.
Register the Geo MCP server in PolicyLayer and add a rule for search_geo_datasets: 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 Geo. Nothing to install.
search_geo_datasets 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_geo_datasets 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_geo_datasets. 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_geo_datasets is provided by the Geo MCP server (mcpmed/geomcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Geo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
11 Geo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.