Delete an agent conversation session permanently.
AI agents call delete_agent_session to permanently remove resources in Lens — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
agent_id | string | Yes | Agent UUID |
session_id | string | Yes | Session UUID to delete |
Parameters from the server's own tool schema.
This tool irreversibly deletes data (agent conversation session). Permanent deletion cannot be undone, making it destructive rather than merely a write operation. The high severity reflects the loss of conversation history and potential audit/compliance impacts if misused by an AI agent.
From the tool's definition Tool name explicitly uses 'delete' and description states 'Delete an agent conversation session permanently.' The word 'permanently' indicates an irreversible operation.
Attacks that exploit this kind of access
Delete an agent conversation session permanently. It is categorised as a Destructive tool in the Lens MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
delete_agent_session accepts 2 parameters: agent_id, session_id. Required: agent_id, session_id. The full parameter table on this page comes from the server's own tool schema.
Register the Lens MCP server in PolicyLayer and add a rule for delete_agent_session: 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 Lens. Nothing to install.
delete_agent_session is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_agent_session 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 delete_agent_session. 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.
delete_agent_session is provided by the Lens MCP server (lens-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.
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