dingtalk_send_link

THE RISK

Medium Risk

Why dingtalk_send_link needs a policy

The tool creates/sends data (a link message) to an external service (DingTalk), which is reversible through DingTalk's standard message deletion mechanisms. It does not execute arbitrary code, delete data, move money, or trigger destructive operations.

From the tool's definition Tool name 'dingtalk_send_link' and description 'Send a link message to DingTalk group' indicate the tool creates and sends a message (link) to a group chat. This is a write operation that modifies the state of the DingTalk group by adding a new message.

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

POLICY

How to control dingtalk_send_link

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_send_link:

policy.json

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

dingtalk_send_link 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

Related tools and policies

More Claude Code DingTalk MCP Server tools

Write dingtalk_configure Configure DingTalk webhook settings Write dingtalk_notify_session_end Send a session completion notification with automatic stats Write dingtalk_send_markdown Send a markdown message to DingTalk group Write dingtalk_send_text Send a text message to DingTalk group

All 5 Claude Code DingTalk MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

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_send_link

What does the dingtalk_send_link tool do? +

Send a link message to DingTalk group. 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_send_link? +

Register the Claude Code DingTalk MCP Server MCP server in PolicyLayer and add a rule for dingtalk_send_link: 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_send_link? +

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

Can I rate-limit dingtalk_send_link? +

Yes. Add a rate_limit block to the dingtalk_send_link 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_send_link completely? +

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

dingtalk_send_link 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 →