Retrieve a knowledge base configuration.
AI agents call retell_get_knowledge_base 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 or queries existing knowledge base configuration data without creating, modifying, or deleting anything. It is a pure read operation with no side effects, matching the 'Read' category definition of retrieving or querying data (get, fetch, retrieve).
From the tool's definition Tool name 'retell_get_knowledge_base' and description 'Retrieve a knowledge base configuration' indicate data retrieval with no modifications or side effects.
Attacks that exploit this kind of access
Retrieve a knowledge base configuration. 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_get_knowledge_base: 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_get_knowledge_base 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_get_knowledge_base 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_get_knowledge_base. 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_get_knowledge_base 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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