xcode-footprint-audit
description (verbatim frontmatter)
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,...
source
plugins/cwc-xcode-engineering/skills/xcode-footprint-audit/SKILL.md
provenance
created 2026-07-10 18:13:13 · JSON