AI agents call sim_uninstall to permanently remove resources in Claude Pascal MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Uninstalling an app is a destructive action that removes software and its associated data/state from the target system. While the effect is isolated to a simulator (rather than a physical device), the action itself is irreversible without reinstallation. This qualifies as Destructive rather than Execute because the primary purpose is to permanently remove an artifact, not merely to run code with variable outcomes.
From the tool's definition Tool name 'sim_uninstall' and description 'Uninstall an app from a simulator' indicate irreversible removal of application software from a simulated Android device.
Documented attack patterns abuse exactly the kind of access sim_uninstall 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_uninstall:
{
"version": "1",
"default": "deny",
"hide": [
"sim_uninstall"
]
}sim_uninstall disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Uninstall an app from a simulator. It is categorised as a Destructive tool in the Claude Pascal MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Claude Pascal MCP Server MCP server in PolicyLayer and add a rule for sim_uninstall: 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_uninstall is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the sim_uninstall 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_uninstall. 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_uninstall 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.