# crow_room_invite Invite a Crow contact to join your companion room. Generates a room token and sends an encrypted invite via Nostr. The contact receives a notification with a join link. Agent View of the PolicyLayer registry record for `crow_room_invite`. HTML page: https://policylayer.com/tools/kh0pper-crow/crow-room-invite ## Facts - Tool: `crow_room_invite` - Server: Crow (`kh0pper/crow`) — https://policylayer.com/tools/kh0pper-crow.md - Homepage: https://github.com/kh0pper/crow - 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": "crow_room_invite", "arguments": {} } } ``` ## Why crow_room_invite is rated Medium The tool creates new artifacts (room tokens, encrypted invites) and modifies the state of contacts by sending them notifications and join links. This is a reversible write operation (invites can be revoked or ignored). It does not execute arbitrary code, delete data, move money, or read existing data without side effects. From the tool's own definition: "Tool description states it 'Generates a room token and sends an encrypted invite', which are creation and modification operations that create new invitations and room associations." ## Use case AI agents use crow_room_invite to create or update resources in Crow, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Crow environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Crow: ```json { "version": "1", "default": "deny", "tools": { "crow_room_invite": { "limits": [ { "counter": "crow_room_invite_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Crow (586) - `caddy_remove_site` — Destructive — https://policylayer.com/tools/kh0pper-crow/caddy-remove-site.md - `crow_bookstack_delete` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-bookstack-delete.md - `crow_campaign_delete` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-campaign-delete.md - `crow_data_write` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-data-write.md - `crow_deactivate_server` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-deactivate-server.md - `crow_delete_bot_schedule` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-bot-schedule.md - `crow_delete_context_section` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-context-section.md - `crow_delete_file` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-file.md - `crow_delete_memory` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-memory.md - `crow_delete_post` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-post.md - `crow_delete_setlist` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-delete-setlist.md - `crow_frigate_set_detect` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-frigate-set-detect.md - `crow_glasses_undo_last_append` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-glasses-undo-last-append.md - `crow_identity_revoke` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-identity-revoke.md - `crow_kb_delete_article` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-kb-delete-article.md - `crow_linkding_delete` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-linkding-delete.md - `crow_media_playlist` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-media-playlist.md - `crow_media_remove_source` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-media-remove-source.md - `crow_miniflux_remove_feed` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-miniflux-remove-feed.md - `crow_remove_backend` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-remove-backend.md - `crow_remove_from_setlist` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-remove-from-setlist.md - `crow_revoke_access` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-revoke-access.md - `crow_revoke_instance` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-revoke-instance.md - `crow_shiori_delete` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-shiori-delete.md - `crow_tax_purge_return` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-tax-purge-return.md - `crow_trilium_delete_note` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-trilium-delete-note.md - `crow_vikunja_delete_task` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-vikunja-delete-task.md - `crow_wallabag_delete` — Destructive — https://policylayer.com/tools/kh0pper-crow/crow-wallabag-delete.md - `crowdsec_delete_decision` — Destructive — https://policylayer.com/tools/kh0pper-crow/crowdsec-delete-decision.md - `fw_defederate` — Destructive — https://policylayer.com/tools/kh0pper-crow/fw-defederate.md - …and 556 more: https://policylayer.com/tools/kh0pper-crow.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=kh0pper-crow · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/kh0pper-crow