iOS MCP routing (Argent vs XcodeBuildMCP)

Decide the primary tool by task class. Prefer one owner per phase. Combine only at clean handoff points (usually: XcodeBuildMCP builds → Argent verifies).

0. Availability check (once per session)

1. XcodeBuildMCP — MCP tools present (XcodeBuildMCP__*) and/or command -v xcodebuildmcp.
2. Argent — MCP tools present (argent__*) and/or command -v argent.
3. If only one is available, use it within its strengths; do not invent the missing one.
4. If neither is available, fall back to shell (xcodebuild, xcrun simctl, adb) and say so.

Load this skill before defaulting to either stack for Apple platform work.

1. One-line rule