clickup_send_chat_message

Send a message to a chat channel with optional mentions and attachments.

SERVERClickUp MCP Server - Enhanced SOURCEchykalophia/clickup-mcp-server---enhanced

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/chykalophia-clickup-mcp-server-enhanced/clickup-send-chat-message.md

WHAT IT DOES

What clickup_send_chat_message does on ClickUp MCP Server - Enhanced

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

RISK

Why clickup_send_chat_message is rated Medium

This tool creates new chat messages, which is a reversible write operation. While not destructive or executable code, sending messages can impact team communication and workflows. Severity is medium rather than low because an AI agent with unchecked access could spam channels, mention wrong users, or send misleading information affecting team coordination.

From the tool's definition Tool description states 'Send a message to a chat channel' - a create/write operation that adds new content to ClickUp's communication system. The capability to include 'mentions and attachments' extends the write scope to include metadata and references.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs clickup_send_chat_message safely

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

clickup_send_chat_message Rate-limited

clickup_send_chat_message 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": {
    "clickup_send_chat_message": {
      "limits": [
        {
          "counter": "clickup_send_chat_message_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 ClickUp MCP Server - Enhanced, apply this rule, and every clickup_send_chat_message call is checked against it from then on.

FAQ

Questions about clickup_send_chat_message

What does the clickup_send_chat_message tool do? +

Send a message to a chat channel with optional mentions and attachments. It is categorised as a Write tool in the ClickUp MCP Server - Enhanced MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on clickup_send_chat_message? +

Register the ClickUp MCP Server - Enhanced MCP server in PolicyLayer and add a rule for clickup_send_chat_message: 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 ClickUp MCP Server - Enhanced. Nothing to install.

What risk level is clickup_send_chat_message? +

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

Can I rate-limit clickup_send_chat_message? +

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

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

clickup_send_chat_message is provided by the ClickUp MCP Server - Enhanced MCP server (chykalophia/clickup-mcp-server---enhanced). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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