AI agents invoke clump_snps to trigger actions in Gwas. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
Clumping is an active computational process that runs an algorithm (LD-based filtering) on GWAS results data. It is not a simple read/query (it transforms data and produces derived results), nor does it write persistent data or delete anything. It falls under Execute as it runs a bioinformatics analysis operation.
From the tool's definition 'Perform LD-based clumping of GWAS results' — this triggers a computational statistical operation (linkage disequilibrium clumping) on genomic data to identify independent signals
Attacks that exploit this kind of access
Perform LD-based clumping of GWAS results to identify independent significant signals. It is categorised as a Execute tool in the Gwas MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Gwas MCP server in PolicyLayer and add a rule for clump_snps: 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 Gwas. Nothing to install.
clump_snps is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the clump_snps 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 clump_snps. 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.
clump_snps is provided by the Gwas MCP server (muslus/gwas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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