This record as markdown: /tools/sbox/redo.md
What redo does on Sbox
AI agents use redo to create or update resources in Sbox, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sbox environment.
Why redo is rated Medium
The redo operation modifies the editor state by reapplying actions, making it a Write category tool. It is reversible (can be undone again), so it does not qualify as Destructive. Severity is low because the blast radius of accidental redo operations in a game editor is minimal—users can simply undo again, and no permanent data loss or external systems are affected.
From the tool's definition Tool description: 'Redo the last undone editor action' — performs a reversible modification to editor state by reapplying a previously undone action.
Attacks that exploit this kind of access
The rule that runs redo safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For redo, this is the rule to start with:
redo stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every redo call is checked against it from then on.
Questions about redo
Redo the last undone editor action. It is categorised as a Write tool in the Sbox MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sbox MCP server in PolicyLayer and add a rule for redo: 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 Sbox. Nothing to install.
redo 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 redo 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 redo. 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.
redo is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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