AI agents call get_call to retrieve information from Retellai without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves call information by ID, which is a straightforward query operation. It does not create, modify, delete, or execute any operations—it only reads and returns existing data. The blast radius is minimal as an AI agent could only access data they can already query, with no risk of unintended modifications or deletions.
From the tool's definition Tool name 'get_call' and description 'Gets a call by ID' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Gets a call by ID. It is categorised as a Read tool in the Retellai MCP Server, which means it retrieves data without modifying state.
Register the Retellai MCP server in PolicyLayer and add a rule for get_call: 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 Retellai. Nothing to install.
get_call 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_call 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_call. 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_call is provided by the Retellai MCP server (@abhaybabbar/retellai-mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →