Returns the AWS IAM caller identity (user/role) to verify credentials.
AI agents call get_aws_caller_identity to retrieve information from AWS 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 returns caller identity information without modifying, deleting, or executing any AWS resources. It is a read-only query analogous to AWS STS GetCallerIdentity API. Severity is low because caller identity disclosure has minimal blast radius—it reveals only the authenticated principal's identity, which is typically non-sensitive metadata.
From the tool's definition Tool name 'get_aws_caller_identity' and description 'Returns the AWS IAM caller identity' indicate a query operation. Server is described as 'read-only' with tools that 'expose AWS tools for AI agent interaction' without modification capability.
Attacks that exploit this kind of access
Returns the AWS IAM caller identity (user/role) to verify credentials. It is categorised as a Read tool in the AWS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP Server MCP server in PolicyLayer and add a rule for get_aws_caller_identity: 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 MCP Server. Nothing to install.
get_aws_caller_identity 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_aws_caller_identity 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_aws_caller_identity. 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_aws_caller_identity is provided by the AWS MCP Server MCP server (sergiosediq/aws-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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