identity_put_resource_policy
AI agents use identity_put_resource_policy to create or update resources in Amazon MQ MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Amazon MQ MCP Server environment.
This tool modifies IAM resource policies (identity-based or resource-based access controls). While policies are reversible, they have significant blast radius: misconfigured policies can grant unintended access to AWS resources, expose sensitive data, or allow privilege escalation.
From the tool's definition Tool name 'identity_put_resource_policy' indicates putting/writing a resource policy. The 'put' operation creates or modifies IAM resource policies, which are reversible write operations that control access permissions.
Attacks that exploit this kind of access
identity_put_resource_policy. It is categorised as a Write tool in the Amazon MQ MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Amazon MQ MCP Server MCP server in PolicyLayer and add a rule for identity_put_resource_policy: 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 Amazon MQ MCP Server. Nothing to install.
identity_put_resource_policy 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 identity_put_resource_policy 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 identity_put_resource_policy. 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.
identity_put_resource_policy is provided by the Amazon MQ MCP Server MCP server (awslabs.amazon-mq-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.