Gets current snapshot of the device screen. Image is returned as a JPEG image.
AI agents call getsnapshot to retrieve information from Revel Digital MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves visual information from a device display without modifying any state, deleting data, executing commands, or creating financial obligations. It is a straightforward query operation that returns imagery, making it a Read category tool with low severity since the blast radius of misuse is simply unauthorized viewing of signage content.
From the tool's definition Tool description states 'Gets current snapshot of the device screen' and 'Image is returned as a JPEG image' — this is a read-only retrieval operation with no side effects or modifications to the device or its data.
Attacks that exploit this kind of access
Gets current snapshot of the device screen. Image is returned as a JPEG image. It is categorised as a Read tool in the Revel Digital MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Revel Digital MCP Server MCP server in PolicyLayer and add a rule for getsnapshot: 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 Revel Digital MCP Server. Nothing to install.
getsnapshot 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 getsnapshot 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 getsnapshot. 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.
getsnapshot is provided by the Revel Digital MCP Server MCP server (reveldigital/reveldigital-mcp-server). 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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