take_screenshot
Capture the current editor viewport as a PNG screenshot
This record as markdown: /tools/sbox/take-screenshot.md
What take_screenshot does on Sbox
AI agents call take_screenshot to retrieve information from Sbox without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why take_screenshot is rated Low
This tool captures the current state of the s&box editor viewport and returns it as an image. It performs no side effects, creates no data modifications, executes no arbitrary code, and cannot be misused to cause harm. It is purely informational—a screenshot retrieval operation analogous to a 'get' or 'fetch' request. The low severity reflects that misuse poses minimal risk to the game project or system.
From the tool's definition Tool name 'take_screenshot' and description 'Capture the current editor viewport as a PNG screenshot' indicate a read-only operation that retrieves visual state without modifying, deleting, or executing code.
Attacks that exploit this kind of access
The rule that runs take_screenshot 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 take_screenshot, this is the rule to start with:
take_screenshot is read-only, so it stays allowed. 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 take_screenshot call is checked against it from then on.
Questions about take_screenshot
Capture the current editor viewport as a PNG screenshot. It is categorised as a Read tool in the Sbox MCP Server, which means it retrieves data without modifying state.
Register the Sbox MCP server in PolicyLayer and add a rule for take_screenshot: 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.
take_screenshot is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the take_screenshot 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 take_screenshot. 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.
take_screenshot 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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