Get serverless session state from external storage.
AI agents call get_serverless_session 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 session state data without modifying, executing code, deleting, or triggering external actions. It is a straightforward data retrieval operation fitting the Read category. Severity is low because reading session state poses minimal risk unless the session data itself contains highly sensitive information, but the tool itself performs no dangerous operation.
From the tool's definition The tool description states it 'Get[s] serverless session state from external storage' — a retrieval operation with no side effects. The verb 'Get' and the absence of any modification language (create, update, delete, write) confirm this is a read-only action.
Attacks that exploit this kind of access
Get serverless session state from external storage. 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 get_serverless_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 Session Buddy. Nothing to install.
get_serverless_session 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_serverless_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 get_serverless_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.
get_serverless_session 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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