invalidate_files

Invalidate (delete from index) specific file paths. Requires KB_ALLOW_WRITE=true. Parameters: paths (list of str).

SERVERMCP Framework Personal SOURCEinggerman/mcps

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/inggerman-mcps/invalidate-files.md

WHAT IT DOES

What invalidate_files does on MCP Framework Personal

AI agents call invalidate_files to permanently remove resources in MCP Framework Personal, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why invalidate_files is rated Critical

An AI agent that decides to call invalidate_files doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from MCP Framework Personal is gone. There is no undo for destructive operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs invalidate_files safely

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

invalidate_files Hidden

invalidate_files 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": [
    "invalidate_files"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MCP Framework Personal, apply this rule, and every invalidate_files call is checked against it from then on.

FAQ

Questions about invalidate_files

What does the invalidate_files tool do? +

Invalidate (delete from index) specific file paths. Requires KB_ALLOW_WRITE=true. Parameters: paths (list of str). It is categorised as a Destructive tool in the MCP Framework Personal 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 invalidate_files? +

Register the MCP Framework Personal MCP server in PolicyLayer and add a rule for invalidate_files: 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 Framework Personal. Nothing to install.

What risk level is invalidate_files? +

invalidate_files 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 invalidate_files? +

Yes. Add a rate_limit block to the invalidate_files 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 invalidate_files completely? +

Set action: deny in the PolicyLayer policy for invalidate_files. 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 invalidate_files? +

invalidate_files is provided by the MCP Framework Personal MCP server (inggerman/mcps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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