List all registered agents and their metadata.
AI agents call list_agents to retrieve information from Interagent without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation to enumerate and retrieve metadata about registered agents. It has no side effects, does not execute code, does not modify data, and does not delete or move resources. The action is purely informational retrieval, making it a Read category risk with low severity due to minimal blast radius if misused by an AI agent.
From the tool's definition Tool name 'list_agents' and description 'List all registered agents and their metadata' indicate a query operation that retrieves information without modifying or executing any actions.
Attacks that exploit this kind of access
List all registered agents and their metadata. It is categorised as a Read tool in the Interagent MCP Server, which means it retrieves data without modifying state.
Register the Interagent MCP server in PolicyLayer and add a rule for list_agents: 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 Interagent. Nothing to install.
list_agents 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 list_agents 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 list_agents. 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.
list_agents is provided by the Interagent MCP server (signalclaude/interagent). 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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