# slack_lists_update Update a list. Agent View of the PolicyLayer registry record for `slack_lists_update`. HTML page: https://policylayer.com/tools/karbassi-slack-mcp/slack-lists-update ## Facts - Tool: `slack_lists_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_update", "arguments": {} } } ``` ## Why slack_lists_update is rated Medium This tool modifies Slack list data but does not delete or destroy it, placing it in the Write category. Severity is high because Slack lists are often used for shared task tracking, project management, and team coordination; unauthorized or malicious updates could corrupt important team workflows, misinform team members, and require manual recovery. From the tool's own definition: "Tool name 'slack_lists_update' and description 'Update a list' indicate modification of existing data in Slack lists. The verb 'update' is a reversible write operation." ## Use case AI agents use slack_lists_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_update": { "limits": [ { "counter": "slack_lists_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