Captures a screenshot from the Main Camera and returns it as a Base64 encoded JPG string.
AI agents call get_screenshot to retrieve information from MCP For Unity without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data (a visual capture) from the Unity Editor's Main Camera and returns it in encoded form. There are no side effects, no data modification, no code execution, and no destructive operations. It is purely informational—analogous to a query or fetch operation. The screenshot capture itself is a read-only observation of the current rendered state.
From the tool's definition Tool name is 'get_screenshot' and description states it 'Captures a screenshot from the Main Camera and returns it as a Base64 encoded JPG string.' The operation reads visual data from the game view without modifying any project state or assets.
Attacks that exploit this kind of access
Captures a screenshot from the Main Camera and returns it as a Base64 encoded JPG string. It is categorised as a Read tool in the MCP For Unity MCP Server, which means it retrieves data without modifying state.
Register the MCP For Unity MCP server in PolicyLayer and add a rule for get_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 MCP For Unity. Nothing to install.
get_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 get_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 get_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.
get_screenshot is provided by the MCP For Unity MCP server (yunuscan/mcpforunity). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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