AI agents use create-partial-view-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.
Creating a new folder is a Write operation (creates data/structure reversibly). Severity is medium because while the action is reversible (the folder can be deleted), it modifies CMS structure and could clutter the file system if created repeatedly; however, it poses no data loss or financial risk. Confidence is high based on the clear, descriptive name and description.
From the tool's definition Tool name and description both indicate 'Creates a new partial view folder' — a reversible creation operation that modifies the CMS structure by adding a new folder.
Attacks that exploit this kind of access
Creates a new partial view folder. It is categorised as a Write tool in the Mcp Dev MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Dev MCP server in PolicyLayer and add a rule for create-partial-view-folder: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Dev. Nothing to install.
create-partial-view-folder is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create-partial-view-folder rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create-partial-view-folder. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create-partial-view-folder is provided by the Mcp Dev MCP server (@umbraco-cms/mcp-dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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