# clickup_send_chat_message Send a message to a chat channel with optional mentions and attachments. Agent View of the PolicyLayer registry record for `clickup_send_chat_message`. HTML page: https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-send-chat-message ## Facts - Tool: `clickup_send_chat_message` - Server: ClickUp MCP Server - Enhanced (`chykalophia/clickup-mcp-server---enhanced`) — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced.md - Homepage: https://github.com/Chykalophia/ClickUp-MCP-Server---Enhanced - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "clickup_send_chat_message", "arguments": {} } } ``` ## 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 own 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." ## Use case 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. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ClickUp MCP Server - Enhanced: ```json { "version": "1", "default": "deny", "tools": { "clickup_send_chat_message": { "limits": [ { "counter": "clickup_send_chat_message_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on ClickUp MCP Server - Enhanced (201) - `clickup_bulk_delete_tasks` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-bulk-delete-tasks.md - `clickup_delete_attachment` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-attachment.md - `clickup_delete_chat_message` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-chat-message.md - `clickup_delete_chat_message_reaction` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-chat-message-reaction.md - `clickup_delete_checklist` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-checklist.md - `clickup_delete_checklist_item` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-checklist-item.md - `clickup_delete_comment` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-comment.md - `clickup_delete_custom_field` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-custom-field.md - `clickup_delete_dependency` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-dependency.md - `clickup_delete_doc` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-doc.md - `clickup_delete_doc_page` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-doc-page.md - `clickup_delete_folder` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-folder.md - `clickup_delete_goal` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-goal.md - `clickup_delete_goal_target` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-goal-target.md - `clickup_delete_list` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-list.md - `clickup_delete_subtask` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-subtask.md - `clickup_delete_task` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-task.md - `clickup_delete_time_entry` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-time-entry.md - `clickup_delete_view` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-view.md - `clickup_delete_webhook` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-delete-webhook.md - `clickup_merge_tasks` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-merge-tasks.md - `clickup_remove_chat_channel_member` — Destructive — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-remove-chat-channel-member.md - `clickup_add_processing_rule` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-add-processing-rule.md - `clickup_bulk_attachment_operations` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-bulk-attachment-operations.md - `clickup_ping_webhook` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-ping-webhook.md - `clickup_process_webhook` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-process-webhook.md - `clickup_resolve_dependency_conflicts` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-resolve-dependency-conflicts.md - `clickup_retry_webhook_events` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-retry-webhook-events.md - `clickup_start_realtime_engine` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-start-realtime-engine.md - `clickup_start_timer` — Execute — https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced/clickup-start-timer.md - …and 171 more: https://policylayer.com/tools/chykalophia-clickup-mcp-server-enhanced.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=chykalophia-clickup-mcp-server-enhanced · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/chykalophia-clickup-mcp-server-enhanced