List participants in a chat room.
AI agents call list_my_chat_participants to retrieve information from Thenvoi MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about chat participants. It performs a read-only operation with no ability to modify, delete, or execute code. The blast radius of misuse is minimal—an agent could discover participants but cannot manipulate them or access sensitive data beyond participant lists.
From the tool's definition Tool name 'list_my_chat_participants' and description 'List participants in a chat room' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List participants in a chat room. It is categorised as a Read tool in the Thenvoi MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Thenvoi MCP Server MCP server in PolicyLayer and add a rule for list_my_chat_participants: 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 Thenvoi MCP Server. Nothing to install.
list_my_chat_participants 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_my_chat_participants 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_my_chat_participants. 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_my_chat_participants is provided by the Thenvoi MCP Server MCP server (thenvoi/thenvoi-mcp). 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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