# create-data-type-folder Creates a new data type folder Agent View of the PolicyLayer registry record for `create-data-type-folder`. HTML page: https://policylayer.com/tools/mcp-dev/create-data-type-folder ## Facts - Tool: `create-data-type-folder` - Server: Mcp Dev (`@umbraco-cms/mcp-dev`) — https://policylayer.com/tools/mcp-dev.md - Install: `npx -y @umbraco-cms/mcp-dev` - Homepage: git+https://github.com/umbraco/Umbraco-CMS-MCP-Dev.git - 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": "create-data-type-folder", "arguments": {} } } ``` ## Why create-data-type-folder is rated Medium This tool creates a new folder for organizing data types within Umbraco CMS. Creation of organizational structures is a Write operation (reversible modification). The severity is low because folder creation has minimal blast radius—it does not delete data, execute arbitrary code, or cause financial impact. Confidence is high given the clear, explicit description of the action performed. From the tool's own definition: "Tool description states it 'Creates a new data type folder' — a reversible creation operation that adds a new organizational structure to the CMS." ## Use case AI agents use create-data-type-folder to create or update resources in Mcp Dev, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Dev environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mcp Dev: ```json { "version": "1", "default": "deny", "tools": { "create-data-type-folder": { "limits": [ { "counter": "create-data-type-folder_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Mcp Dev (418) - `create-document-version-rollback` — Destructive — https://policylayer.com/tools/mcp-dev/create-document-version-rollback.md - `delete-data-type` — Destructive — https://policylayer.com/tools/mcp-dev/delete-data-type.md - `delete-data-type-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-data-type-folder.md - `delete-dictionary-item` — Destructive — https://policylayer.com/tools/mcp-dev/delete-dictionary-item.md - `delete-document` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document.md - `delete-document-blueprint` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-blueprint.md - `delete-document-blueprint-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-blueprint-folder.md - `delete-document-public-access` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-public-access.md - `delete-document-recycle-bin-item` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-recycle-bin-item.md - `delete-document-type` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-type.md - `delete-document-type-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-document-type-folder.md - `delete-element` — Destructive — https://policylayer.com/tools/mcp-dev/delete-element.md - `delete-element-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-element-folder.md - `delete-element-folder-from-recycle-bin` — Destructive — https://policylayer.com/tools/mcp-dev/delete-element-folder-from-recycle-bin.md - `delete-element-from-recycle-bin` — Destructive — https://policylayer.com/tools/mcp-dev/delete-element-from-recycle-bin.md - `delete-from-recycle-bin` — Destructive — https://policylayer.com/tools/mcp-dev/delete-from-recycle-bin.md - `delete-language` — Destructive — https://policylayer.com/tools/mcp-dev/delete-language.md - `delete-log-viewer-saved-search-by-name` — Destructive — https://policylayer.com/tools/mcp-dev/delete-log-viewer-saved-search-by-name.md - `delete-media` — Destructive — https://policylayer.com/tools/mcp-dev/delete-media.md - `delete-media-from-recycle-bin` — Destructive — https://policylayer.com/tools/mcp-dev/delete-media-from-recycle-bin.md - `delete-media-recycle-bin-item` — Destructive — https://policylayer.com/tools/mcp-dev/delete-media-recycle-bin-item.md - `delete-media-type` — Destructive — https://policylayer.com/tools/mcp-dev/delete-media-type.md - `delete-media-type-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-media-type-folder.md - `delete-member` — Destructive — https://policylayer.com/tools/mcp-dev/delete-member.md - `delete-member-group` — Destructive — https://policylayer.com/tools/mcp-dev/delete-member-group.md - `delete-member-type` — Destructive — https://policylayer.com/tools/mcp-dev/delete-member-type.md - `delete-partial-view` — Destructive — https://policylayer.com/tools/mcp-dev/delete-partial-view.md - `delete-partial-view-folder` — Destructive — https://policylayer.com/tools/mcp-dev/delete-partial-view-folder.md - `delete-redirect` — Destructive — https://policylayer.com/tools/mcp-dev/delete-redirect.md - `delete-script` — Destructive — https://policylayer.com/tools/mcp-dev/delete-script.md - …and 388 more: https://policylayer.com/tools/mcp-dev.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=mcp-dev · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mcp-dev