close_session

Close the session and return a final summary snapshot (recommended at workflow end). Free Delx Protocol tool.

SERVERDelx MCP Server SOURCEdelx-mcp-server

Medium RISK CLASS

Category Write

Parameters 31 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/close-session.md

WHAT IT DOES

What close_session does on Delx MCP Server

AI agents use close_session to create or update resources in Delx MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Delx MCP Server environment.

Parameter	Type	Required	Description
`reason`	string	—	Optional close reason (e.g. end_of_shift, task_completed)
`session_id`	string	Yes	The session ID to close
`include_summary`	boolean	—	Optional: include final summary block

Parameters from the server's own tool schema.

RISK

Why close_session is rated Medium

An AI agent can call close_session faster than any human can review: one bad instruction and it creates or modifies resources in Delx MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs close_session safely

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

close_session Rate-limited

close_session stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "close_session": {
      "limits": [
        {
          "counter": "close_session_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about close_session

What does the close_session tool do? +

Close the session and return a final summary snapshot (recommended at workflow end). Free Delx Protocol tool. It is categorised as a Write tool in the Delx MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does close_session accept? +

close_session accepts 3 parameters: reason, session_id, include_summary. Required: session_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on close_session? +

Register the Delx MCP Server MCP server in PolicyLayer and add a rule for close_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 Delx MCP Server. Nothing to install.

What risk level is close_session? +

close_session is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit close_session? +

Yes. Add a rate_limit block to the close_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 close_session completely? +

Set action: deny in the PolicyLayer policy for close_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 close_session? +

close_session is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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