dingtalk_notify_session_end

THE RISK

Medium Risk

Why dingtalk_notify_session_end needs a policy

This tool writes/creates notification data and sends it to DingTalk, a third-party messaging platform. It modifies state by creating a new message in DingTalk groups, but does not delete data or execute arbitrary code.

From the tool's definition Tool name 'dingtalk_notify_session_end' and description 'Send a session completion notification with automatic stats' indicate the tool creates and sends a notification message.

Documented attack patterns abuse exactly the kind of access dingtalk_notify_session_end gives an agent:

POLICY

How to control dingtalk_notify_session_end

PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Code DingTalk MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for dingtalk_notify_session_end:

policy.json

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

dingtalk_notify_session_end 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.

Create a free account and register Claude Code DingTalk MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about dingtalk_notify_session_end

What does the dingtalk_notify_session_end tool do? +

Send a session completion notification with automatic stats. It is categorised as a Write tool in the Claude Code DingTalk MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on dingtalk_notify_session_end? +

Register the Claude Code DingTalk MCP Server MCP server in PolicyLayer and add a rule for dingtalk_notify_session_end: 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 Claude Code DingTalk MCP Server. Nothing to install.

What risk level is dingtalk_notify_session_end? +

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

Can I rate-limit dingtalk_notify_session_end? +

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

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

dingtalk_notify_session_end is provided by the Claude Code DingTalk MCP Server MCP server (sfyyy/claude-code-dingtalk-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Code DingTalk MCP Server tool call.

Start from Claude Code DingTalk MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →