get_managed_policy_document
AI agents call get_managed_policy_document to retrieve information from AWS IoT SiteWise 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 an IAM managed policy document without modifying it, which aligns with the Read category. However, the information obtained (policy documents) could be sensitive or used to inform privilege escalation attacks, warranting medium severity. Confidence is reduced to 0.75 due to the empty description, which prevents confirmation of exact behavior and potential side effects.
From the tool's definition Tool name 'get_managed_policy_document' indicates retrieval of an existing IAM managed policy document; the 'get' prefix and lack of modification verbs (create, update, delete) suggest read-only access to policy data.
Attacks that exploit this kind of access
get_managed_policy_document. It is categorised as a Read tool in the AWS IoT SiteWise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for get_managed_policy_document: 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 IoT SiteWise MCP Server. Nothing to install.
get_managed_policy_document 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_managed_policy_document 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_managed_policy_document. 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_managed_policy_document is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.