rollback_last_patch · RPG Maker MV Content Bridge MCP

WHAT IT DOES

What rollback_last_patch does on RPG Maker MV Content Bridge

AI agents call rollback_last_patch to permanently remove resources in RPG Maker MV Content Bridge — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

WHY IT NEEDS A POLICY

Why rollback_last_patch needs a policy

Rolling back a transaction permanently undoes committed changes. While 'rollback' could sound reversible, in a file-based system it overwrites or discards previously applied data (the patch) irreversibly. The prior state that was patched is lost, making this a destructive operation. High severity because it can silently undo legitimate project changes made by prior tool calls.

From the tool's definition rollback_last_patch / 'Rollback last transaction' — reverses and discards the most recently applied patch/transaction

Attacks that exploit this kind of access

Questions about rollback_last_patch

What does the rollback_last_patch tool do? +

Rollback last transaction. It is categorised as a Destructive tool in the RPG Maker MV Content Bridge 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 rollback_last_patch? +

Register the RPG Maker MV Content Bridge MCP server in PolicyLayer and add a rule for rollback_last_patch: 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 RPG Maker MV Content Bridge. Nothing to install.

What risk level is rollback_last_patch? +

rollback_last_patch 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 rollback_last_patch? +

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

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

rollback_last_patch is provided by the RPG Maker MV Content Bridge MCP server (zdoss/herolink). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.