List saved screenshots
AI agents call list_screenshots to retrieve information from Screenshot MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation that queries and returns information about saved screenshots without altering, deleting, or executing any operations. The function is purely informational and carries minimal risk.
From the tool's definition Tool name 'list_screenshots' and description 'List saved screenshots' indicate retrieval/enumeration of existing screenshot files with no modification or deletion capability.
Attacks that exploit this kind of access
List saved screenshots. It is categorised as a Read tool in the Screenshot MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Screenshot MCP Server MCP server in PolicyLayer and add a rule for list_screenshots: 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 Screenshot MCP Server. Nothing to install.
list_screenshots 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 list_screenshots 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 list_screenshots. 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.
list_screenshots is provided by the Screenshot MCP Server MCP server (yushinna/screenshot-mcp). 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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