Capture a simulator screenshot and return it as an Image (parity with adb_screenshot).
AI agents call sim_screenshot to retrieve information from Claude Pascal MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Screenshot capture is a non-destructive observation operation. While it can reveal sensitive information visible on screen, the action itself is passive retrieval with no ability to alter system state, execute code, or cause irreversible changes. It matches the 'Read' category definition of retrieving or querying data with no side effects, similar to a fetch or get operation.
From the tool's definition Tool captures a simulator screenshot and returns it as an Image. This is a pure read operation with no side effects—it only retrieves visual state information without modifying, executing, or deleting anything.
Documented attack patterns abuse exactly the kind of access sim_screenshot gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Claude Pascal MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for sim_screenshot:
{
"version": "1",
"default": "deny",
"tools": {
"sim_screenshot": {}
}
}sim_screenshot is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Capture a simulator screenshot and return it as an Image (parity with adb_screenshot). It is categorised as a Read tool in the Claude Pascal MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Claude Pascal MCP Server MCP server in PolicyLayer and add a rule for sim_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 Claude Pascal MCP Server. Nothing to install.
sim_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 sim_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 sim_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.
sim_screenshot is provided by the Claude Pascal MCP Server MCP server (tina4stack/claude-pascal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Claude Pascal MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
53 Claude Pascal MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.