AI agents call xcrun_show_sdk_path to retrieve information from Xctools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns SDK path data without modifying, executing, or deleting anything. It is a read-only informational operation that retrieves SDK configuration details for development tools. No reversible or irreversible modifications are made, no code execution is triggered, and no financial transactions occur.
From the tool's definition Tool name and description indicate it retrieves SDK path information: 'Show the path to the SDK' is a query operation with no side effects.
Attacks that exploit this kind of access
Show the path to the SDK. It is categorised as a Read tool in the Xctools MCP Server, which means it retrieves data without modifying state.
Register the Xctools MCP server in PolicyLayer and add a rule for xcrun_show_sdk_path: 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 Xctools. Nothing to install.
xcrun_show_sdk_path 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 xcrun_show_sdk_path 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 xcrun_show_sdk_path. 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.
xcrun_show_sdk_path is provided by the Xctools MCP server (nzrsky/xctools-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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