# slack_lists_items_update Update cells in a list item. Agent View of the PolicyLayer registry record for `slack_lists_items_update`. HTML page: https://policylayer.com/tools/karbassi-slack-mcp/slack-lists-items-update ## Facts - Tool: `slack_lists_items_update` - Server: Slack (`karbassi/slack-mcp`) — https://policylayer.com/tools/karbassi-slack-mcp.md - Homepage: https://github.com/karbassi/slack-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": "slack_lists_items_update", "arguments": {} } } ``` ## Why slack_lists_items_update is rated Medium This tool updates list item data, which is a reversible write operation. It modifies structured data within Slack lists but does not delete or destroy information. Severity is medium because careless updates could corrupt important shared lists affecting multiple users, but changes are generally reversible through further updates or version history if available. From the tool's own definition: "Tool name contains 'update' and description states 'Update cells in a list item' — modifying existing list data." ## Use case AI agents use slack_lists_items_update to create or update resources in Slack, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Slack environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Slack: ```json { "version": "1", "default": "deny", "tools": { "slack_lists_items_update": { "limits": [ { "counter": "slack_lists_items_update_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Slack (232) - `apps_manifest_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/apps-manifest-delete.md - `apps_uninstall` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/apps-uninstall.md - `auth_revoke` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/auth-revoke.md - `bookmarks_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/bookmarks-remove.md - `cache_clear` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/cache-clear.md - `calls_participants_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/calls-participants-remove.md - `canvases_access_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/canvases-access-delete.md - `canvases_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/canvases-delete.md - `channels_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/channels-delete.md - `chat_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/chat-delete.md - `chat_delete_scheduled_message` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/chat-delete-scheduled-message.md - `conversations_kick` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/conversations-kick.md - `drafts_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/drafts-delete.md - `emoji_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/emoji-remove.md - `files_comments_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/files-comments-delete.md - `files_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/files-delete.md - `files_remote_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/files-remote-remove.md - `files_revoke_public_url` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/files-revoke-public-url.md - `pins_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/pins-remove.md - `reactions_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/reactions-remove.md - `reminders_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/reminders-delete.md - `saved_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/saved-delete.md - `slack_lists_access_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/slack-lists-access-delete.md - `slack_lists_items_delete` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/slack-lists-items-delete.md - `slack_lists_items_delete_multiple` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/slack-lists-items-delete-multiple.md - `stars_remove` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/stars-remove.md - `team_external_teams_disconnect` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/team-external-teams-disconnect.md - `users_admin_set_inactive` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/users-admin-set-inactive.md - `users_delete_photo` — Destructive — https://policylayer.com/tools/karbassi-slack-mcp/users-delete-photo.md - `apps_connections_open` — Execute — https://policylayer.com/tools/karbassi-slack-mcp/apps-connections-open.md - …and 202 more: https://policylayer.com/tools/karbassi-slack-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=karbassi-slack-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/karbassi-slack-mcp