end_tool_session

End a tool session before its TTL expires.

SERVERAirMCP SOURCEairmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/heznpc-airmcp/end-tool-session.md

WHAT IT DOES

What end_tool_session does on AirMCP

AI agents call end_tool_session to retrieve information from AirMCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why end_tool_session is rated Low

Even though end_tool_session only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs end_tool_session safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AirMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For end_tool_session, this is the rule to start with:

end_tool_session Allowed

end_tool_session is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "end_tool_session": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AirMCP, apply this rule, and every end_tool_session call is checked against it from then on.

FAQ

Questions about end_tool_session

What does the end_tool_session tool do? +

End a tool session before its TTL expires. It is categorised as a Read tool in the AirMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on end_tool_session? +

Register the Air MCP server in PolicyLayer and add a rule for end_tool_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 AirMCP. Nothing to install.

What risk level is end_tool_session? +

end_tool_session is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit end_tool_session? +

Yes. Add a rate_limit block to the end_tool_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.

How do I block end_tool_session completely? +

Set action: deny in the PolicyLayer policy for end_tool_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.

What MCP server provides end_tool_session? +

end_tool_session is provided by the Air MCP server (airmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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