unity_script_create
Create a new C# script file in the project with the given content.
This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-script-create.md
What unity_script_create does on Unity MCP Server
AI agents use unity_script_create to create or update resources in Unity MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unity MCP Server environment.
Why unity_script_create is rated Medium
This is a Write operation: it creates a new file reversibly (can be deleted). While script creation could enable code execution if the script is later run, the tool itself only performs file creation/writing, not execution. The severity is medium because a malicious script could cause damage if executed by an agent or developer, but the tool's direct action is limited to creation.
From the tool's definition Tool description states 'Create a new C# script file in the project with the given content' — this creates a new file with provided content.
Attacks that exploit this kind of access
The rule that runs unity_script_create safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Unity MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unity_script_create, this is the rule to start with:
unity_script_create 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 Unity MCP Server, apply this rule, and every unity_script_create call is checked against it from then on.
Questions about unity_script_create
Create a new C# script file in the project with the given content. It is categorised as a Write tool in the Unity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_script_create: 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 Unity MCP Server. Nothing to install.
unity_script_create 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 unity_script_create 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 unity_script_create. 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.
unity_script_create is provided by the Unity MCP Server MCP server (anklebreaker-studio/unity-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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