post_ga4gh_variantannotations_search
AI agents call post_ga4gh_variantannotations_search to retrieve information from OrigeneMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name implies a search/query operation for GA4GH variant annotations. Despite the 'post' prefix (which likely refers to the HTTP POST method used for search queries in GA4GH APIs rather than data creation), the operation is a read/search. The description is empty, lowering confidence. Severity is medium given the biomedical context and potential sensitivity of variant annotation data.
From the tool's definition Tool name contains 'search' and 'ga4gh_variantannotations', suggesting retrieval of variant annotation data via GA4GH API
Documented attack patterns abuse exactly the kind of access post_ga4gh_variantannotations_search gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OrigeneMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for post_ga4gh_variantannotations_search:
{
"version": "1",
"default": "deny",
"tools": {
"post_ga4gh_variantannotations_search": {}
}
}post_ga4gh_variantannotations_search is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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post_ga4gh_variantannotations_search. It is categorised as a Read tool in the OrigeneMCP MCP Server, which means it retrieves data without modifying state.
Register the Origene MCP server in PolicyLayer and add a rule for post_ga4gh_variantannotations_search: 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 OrigeneMCP. Nothing to install.
post_ga4gh_variantannotations_search 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 post_ga4gh_variantannotations_search 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 post_ga4gh_variantannotations_search. 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.
post_ga4gh_variantannotations_search is provided by the Origene MCP server (gentel-lab/origenemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OrigeneMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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