List all chat sessions with optional filtering.
AI agents call retell_list_chats to retrieve information from Retell AI 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 chat session data with optional filters. It has no side effects, does not create, modify, or delete data, and does not execute code or trigger external operations. It is a straightforward data retrieval operation, making it a Read category tool with low severity.
From the tool's definition Tool name 'retell_list_chats' and description 'List all chat sessions with optional filtering' indicates a retrieval operation. The verb 'list' is a classic read operation that queries existing data without modification.
Attacks that exploit this kind of access
List all chat sessions with optional filtering. It is categorised as a Read tool in the Retell AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Retell AI MCP Server MCP server in PolicyLayer and add a rule for retell_list_chats: 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 Retell AI MCP Server. Nothing to install.
retell_list_chats 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 retell_list_chats 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 retell_list_chats. 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.
retell_list_chats is provided by the Retell AI MCP Server MCP server (itsanamune/retellsimp). 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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