# clickup_add_chat_reaction A write tool on the Clickup MCP server. Agent View of the PolicyLayer registry record for `clickup_add_chat_reaction`. HTML page: https://policylayer.com/tools/clickup-mcp/clickup-add-chat-reaction ## Facts - Tool: `clickup_add_chat_reaction` - Server: Clickup (`trustxai/clickup-mcp`) — https://policylayer.com/tools/clickup-mcp.md - Homepage: https://github.com/trustxai/clickup-mcp - 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_add_chat_reaction", "arguments": {} } } ``` ## Why clickup_add_chat_reaction is rated Medium Adding a chat reaction is a write operation that creates new data (a reaction record) in a reversible manner—reactions can be removed. While the blast radius is limited compared to destructive operations, it modifies shared chat state that affects collaboration visibility. This is classified as Write rather than Read (which would be retrieving reactions) or Execute (which would require running arbitrary code). From the tool's own definition: "Tool name 'clickup_add_chat_reaction' indicates adding a reaction to chat content, which modifies data in ClickUp's chat system. The description is empty, limiting confidence." ## Use case AI agents use clickup_add_chat_reaction to create or update resources in Clickup, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Clickup environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Clickup: ```json { "version": "1", "default": "deny", "tools": { "clickup_add_chat_reaction": { "limits": [ { "counter": "clickup_add_chat_reaction_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Clickup (165) - `clickup_delete_chat_channel` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-chat-channel.md - `clickup_delete_chat_message` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-chat-message.md - `clickup_delete_chat_reaction` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-chat-reaction.md - `clickup_delete_checklist` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-checklist.md - `clickup_delete_checklist_item` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-checklist-item.md - `clickup_delete_comment` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-comment.md - `clickup_delete_dependency` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-dependency.md - `clickup_delete_folder` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-folder.md - `clickup_delete_goal` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-goal.md - `clickup_delete_key_result` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-key-result.md - `clickup_delete_list` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-list.md - `clickup_delete_space` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-space.md - `clickup_delete_space_tag` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-space-tag.md - `clickup_delete_task` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-task.md - `clickup_delete_task_link` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-task-link.md - `clickup_delete_time_entry` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-time-entry.md - `clickup_delete_user_group` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-user-group.md - `clickup_delete_view` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-view.md - `clickup_delete_webhook` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-delete-webhook.md - `clickup_remove_guest_from_folder` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-guest-from-folder.md - `clickup_remove_guest_from_list` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-guest-from-list.md - `clickup_remove_guest_from_task` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-guest-from-task.md - `clickup_remove_guest_from_workspace` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-guest-from-workspace.md - `clickup_remove_tag_from_task` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-tag-from-task.md - `clickup_remove_task_from_list` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-task-from-list.md - `clickup_remove_user_from_workspace` — Destructive — https://policylayer.com/tools/clickup-mcp/clickup-remove-user-from-workspace.md - `clickup_start_time_entry` — Execute — https://policylayer.com/tools/clickup-mcp/clickup-start-time-entry.md - `clickup_get_bulk_tasks_time_in_status` — Read — https://policylayer.com/tools/clickup-mcp/clickup-get-bulk-tasks-time-in-status.md - `clickup_get_chat_channel` — Read — https://policylayer.com/tools/clickup-mcp/clickup-get-chat-channel.md - `clickup_get_chat_channel_followers` — Read — https://policylayer.com/tools/clickup-mcp/clickup-get-chat-channel-followers.md - …and 135 more: https://policylayer.com/tools/clickup-mcp.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=clickup-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/clickup-mcp