{
  "skills": [
    {
      "id": "skl_xcode_footprint_audit",
      "name": "xcode-footprint-audit",
      "plugin": "cwc-xcode-engineering",
      "description": "Audit the real Xcode-toolchain disk footprint on this Mac as typed JSON — what IS installed (xcode-select path, Swift toolchain, /Applications/ Xcode*.app glob, simctl availability) and what disk the support artifacts actually hold (DerivedData, iOS DeviceSupport, CoreSimulator), each check {id, present, detail, disk_bytes?} with honest absence, never assuming anything exists. The \"check before blaming\" tool for disk-full incidents: this Mac's recurring 100%-full episodes were Xcode-beta + its artifacts, while Docker.raw and Time Machine snapshots were false leads. Use when disk is filling up, before deleting anything Xcode-shaped, when asked \"is Xcode installed\", \"what's eating my disk\", \"how big is DerivedData\", or before/ after installing or removing an Xcode. Trigger on \"footprint\", \"disk audit\", \"DerivedData size\", \"DeviceSupport\", \"simulator disk\". Do NOT use for toolchain version/SDK probing before builds (xcode-toolchain-trace owns that) or for actually deleting artifacts — this skill is read-only; deletion is the operator's call.",
      "summary": "Audit the real Xcode-toolchain disk footprint on this Mac as typed JSON — what IS installed (xcode-select path, Swift toolchain, /Applications/ Xcode*.app glob, simctl availability) and what disk the support artifacts actually hold (DerivedData, iOS DeviceSupport, CoreSimulator), each check {id,...",
      "gated": 0,
      "source_path": "plugins/cwc-xcode-engineering/skills/xcode-footprint-audit/SKILL.md",
      "created_at": "2026-07-10 18:13:13",
      "cite_as": "https://subagentskills.com/api/skills/skl_xcode_footprint_audit"
    },
    {
      "id": "skl_xcode_toolchain_trace",
      "name": "xcode-toolchain-trace",
      "plugin": "cwc-xcode-engineering",
      "description": "Trace the real installed Xcode toolchain before acting — the SDKs, the xcrun command surface (build/test/simulate/sign/distribute), and the native Xcode Source Editor Extension ecosystem. Copycat-first: probe `xcodebuild -version`, `-showsdks`, and `xcrun --find <tool>`; never recall a version. Grounded in the vendored theswiftdev/awesome-xcode-extensions list. Use when the user asks to build/test/sign/distribute an Xcode project, which SDKs/tools are installed, how to run the simulator, notarize or upload a build, or which Xcode editor extensions exist for formatting/CodingKeys/lint. Trigger on \"Xcode\", \"xcodebuild\", \"xcrun\", \"SDK\", \"simulator\", \"simctl\", \"notarize\", \"TestFlight\", \"provisioning\", \"Xcode extension\". Do NOT use for Swift language/package work (cwc-swift-engineering) or device-hardware introspection (cwc-hardware-engineering).",
      "summary": "Trace the real installed Xcode toolchain before acting — the SDKs, the xcrun command surface (build/test/simulate/sign/distribute), and the native Xcode Source Editor Extension ecosystem.",
      "gated": 0,
      "source_path": "plugins/cwc-xcode-engineering/skills/xcode-toolchain-trace/SKILL.md",
      "created_at": "2026-07-10 18:13:13",
      "cite_as": "https://subagentskills.com/api/skills/skl_xcode_toolchain_trace"
    }
  ]
}