GrantHealthOmicsRepositoryAccess
AI agents use GrantHealthOmicsRepositoryAccess to create or update resources in AWS Labs CloudTrail MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AWS Labs CloudTrail MCP Server environment.
The tool name implies granting access (an IAM/permission write operation) to a HealthOmics repository. Granting access modifies authorization policies, which is a Write action. However, the description is empty, lowering confidence. The severity is high because misconfigured access grants could expose sensitive genomic/health data to unauthorized parties.
From the tool's definition Tool name 'GrantHealthOmicsRepositoryAccess' — granting access modifies permissions/policies on a HealthOmics repository.
Attacks that exploit this kind of access
GrantHealthOmicsRepositoryAccess. It is categorised as a Write tool in the AWS Labs CloudTrail MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AWS Labs CloudTrail MCP Server MCP server in PolicyLayer and add a rule for GrantHealthOmicsRepositoryAccess: 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 AWS Labs CloudTrail MCP Server. Nothing to install.
GrantHealthOmicsRepositoryAccess is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the GrantHealthOmicsRepositoryAccess 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 GrantHealthOmicsRepositoryAccess. 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.
GrantHealthOmicsRepositoryAccess is provided by the AWS Labs CloudTrail MCP Server MCP server (awslabs.cloudtrail-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.