List serverless sessions with optional filtering.
AI agents call list_serverless_sessions to retrieve information from Session Buddy 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 existing session information with optional filtering parameters. It has no side effects—it does not create, modify, delete, or execute operations. It falls squarely into the Read category as a data retrieval operation. Severity is low because listing sessions poses minimal risk even if misused; the worst outcome is viewing session metadata without ability to alter or delete it.
From the tool's definition Tool is named 'list_serverless_sessions' and described as 'List serverless sessions with optional filtering.' The verb 'list' and action of retrieving/querying session data without modification indicates a read-only operation.
Attacks that exploit this kind of access
List serverless sessions with optional filtering. It is categorised as a Read tool in the Session Buddy MCP Server, which means it retrieves data without modifying state.
Register the Session Buddy MCP server in PolicyLayer and add a rule for list_serverless_sessions: 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 Session Buddy. Nothing to install.
list_serverless_sessions 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_serverless_sessions 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_serverless_sessions. 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_serverless_sessions is provided by the Session Buddy MCP server (lesleslie/session-buddy). 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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