session_close

Close a CLI-Anything REPL session.

SERVERMcp Anything SOURCEZaymadkid/mcp-anything

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-anything/session-close.md

WHAT IT DOES

What session_close does on Mcp Anything

AI agents invoke session_close to trigger actions in Mcp Anything. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why session_close is rated High

Closing a REPL session terminates an active process/session and potentially cleans up associated state. This is an external operation with side effects (ending a running session), making it Execute. It may also have some destructive aspects if unsaved session state is lost, but the primary action is terminating/executing a session lifecycle operation.

From the tool's definition Close a CLI-Anything REPL session

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs session_close safely

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

session_close Rate-limited

session_close stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "session_close": {
      "limits": [
        {
          "counter": "session_close_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about session_close

What does the session_close tool do? +

Close a CLI-Anything REPL session. It is categorised as a Execute tool in the Mcp Anything MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on session_close? +

Register the Mcp Anything MCP server in PolicyLayer and add a rule for session_close: 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 Mcp Anything. Nothing to install.

What risk level is session_close? +

session_close is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit session_close? +

Yes. Add a rate_limit block to the session_close 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 session_close completely? +

Set action: deny in the PolicyLayer policy for session_close. 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 session_close? +

session_close is provided by the Mcp Anything MCP server (Zaymadkid/mcp-anything). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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