Write full GDScript content with overwrite protection
AI agents use script_write to create or update resources in Godot Devtool — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot Devtool environment.
This tool creates or modifies GDScript files reversibly. While it includes 'overwrite protection' (a safeguard suggesting awareness of risk), the core function is to write/modify code files, which is a Write category action.
From the tool's definition Tool name 'script_write' combined with description 'Write full GDScript content with overwrite protection' explicitly performs write operations. The phrase 'write full...content' indicates creation or modification of script files.
Documented attack patterns abuse exactly the kind of access script_write gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Godot Devtool, and nothing reaches the server without passing your rules. This is the rule we recommend for script_write:
{
"version": "1",
"default": "deny",
"tools": {
"script_write": {
"limits": [
{
"counter": "script_write_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}script_write 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.
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Write full GDScript content with overwrite protection. It is categorised as a Write tool in the Godot Devtool MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Godot Devtool MCP server in PolicyLayer and add a rule for script_write: 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 Godot Devtool. Nothing to install.
script_write 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 script_write 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 script_write. 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.
script_write is provided by the Godot Devtool MCP server (wangdiandao/godot-devtool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 101 Godot Devtool tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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101 Godot Devtool tools catalogued and risk-classified — across an index of 42,500+ MCP servers.