Get client details by provider and client ID
AI agents call get_client to retrieve information from UseGrant MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries existing client data without modifying, deleting, or executing operations. It is a straightforward read operation that returns information about a client entity. The low severity reflects minimal blast radius if misused—an agent could only access client details, not modify or delete resources.
From the tool's definition Tool name is 'get_client' and description states 'Get client details by provider and client ID' — this is a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get client details by provider and client ID. It is categorised as a Read tool in the UseGrant MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UseGrant MCP Server MCP server in PolicyLayer and add a rule for get_client: 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 UseGrant MCP Server. Nothing to install.
get_client 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 get_client 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 get_client. 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.
get_client is provided by the UseGrant MCP Server MCP server (usegranthq/mcp-server). 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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