# copy-data-type Copy a data type by Id. Returns the new data type Agent View of the PolicyLayer registry record for `copy-data-type`. HTML page: https://policylayer.com/tools/mcp-dev/copy-data-type ## Facts - Tool: `copy-data-type` - 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": "copy-data-type", "arguments": {} } } ``` ## Why copy-data-type is rated Medium This tool creates a new data type based on an existing one, which is a reversible write operation. It modifies the CMS by adding new content but does not execute arbitrary code, delete data, or involve financial transactions. The medium severity reflects that misuse could clutter the CMS with unwanted data types, but the effect is reversible through deletion. From the tool's own definition: "The tool description explicitly states it will 'Copy a data type by Id. Returns the new data type'. Copying creates a new entity (reversible duplication) without permanently destroying or deleting anything." ## Use case AI agents use copy-data-type 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": { "copy-data-type": { "limits": [ { "counter": "copy-data-type_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