delete-language

Deletes a language by ISO code

SERVERMcp Dev SOURCE@umbraco-cms/mcp-dev

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-dev/delete-language.md

WHAT IT DOES

What delete-language does on Mcp Dev

AI agents call delete-language to permanently remove resources in Mcp Dev, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why delete-language is rated Critical

The tool performs an irreversible deletion of a language configuration in Umbraco CMS. Deletion cannot be undone without restoration from backups. This is unambiguously Destructive rather than Write. Severity is high because deleting a language from a CMS affects all content, translations, and site structure dependent on that language, with potential broad impact across the system.

From the tool's definition Tool name contains 'delete' and description states 'Deletes a language by ISO code' — this is an irreversible deletion operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs delete-language safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Dev, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete-language, this is the rule to start with:

delete-language Hidden

delete-language is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete-language"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Dev, apply this rule, and every delete-language call is checked against it from then on.

FAQ

Questions about delete-language

What does the delete-language tool do? +

Deletes a language by ISO code. It is categorised as a Destructive tool in the Mcp Dev MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete-language? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for delete-language: 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.

What risk level is delete-language? +

delete-language is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete-language? +

Yes. Add a rate_limit block to the delete-language 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.

How do I block delete-language completely? +

Set action: deny in the PolicyLayer policy for delete-language. 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.

What MCP server provides delete-language? +

delete-language 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.

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