Validate iOS development environment
AI agents call simulator_health_check to retrieve information from Xclaude Plugin without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Health checks are read-only validation operations that query and inspect the state of the development environment (simulators, Xcode, dependencies, etc.) without modifying or executing changes. This aligns with the Read category for diagnostic/informational tools.
From the tool's definition Tool name 'simulator_health_check' and description 'Validate iOS development environment' indicate inspection/diagnostic functionality without side effects.
Attacks that exploit this kind of access
Validate iOS development environment. It is categorised as a Read tool in the Xclaude Plugin MCP Server, which means it retrieves data without modifying state.
Register the Xclaude Plugin MCP server in PolicyLayer and add a rule for simulator_health_check: 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 Xclaude Plugin. Nothing to install.
simulator_health_check 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 simulator_health_check 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 simulator_health_check. 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.
simulator_health_check is provided by the Xclaude Plugin MCP server (conorluddy/xclaude-plugin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
simulator_health_check is one line of Xclaude Plugin's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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