Lean router that maps symptoms to reference files with no padded concept explanations; it assumes Claude's competence and every line (Quick Reference table, Decision Tree, Anti-Rationalization) earns its place.

Provides concrete, executable routing — exact class names (UIViewRepresentable, UIHostingController), explicit file paths, and runnable invocations like 'Launch resize-auditor agent or /axiom:audit resize' — rather than vague direction.

The numbered Decision Tree (0, 0b, 1, 2…) sequences routing decisions clearly, and Conflict Resolution adds explicit priority ordering ('Try uikit FIRST'); as a decision router rather than a destructive workflow, it needs no validation checkpoints.

SKILL.md is an overview pointing to well-signaled, one-level-deep references (skills/*.md) via both a Quick Reference table and a Decision Tree, with content appropriately split and no nested reference chains.

Names several concrete capability domains with verbs — 'bridging UIKit and SwiftUI', 'modernizing UIKit apps (scene lifecycle, resizability)', 'debugging Auto Layout, Combine, TextKit, PencilKit, or UIKit animations' — listing multiple specific concrete actions rather than vague abstractions.

Explicitly answers both 'what' (the named UIKit domains) and 'when' via the opening 'Use when bridging...' trigger clause, satisfying the explicit-trigger requirement for the top anchor.

Includes natural terms developers actually say — 'UIKit', 'SwiftUI', 'Auto Layout', 'Combine', 'TextKit', 'PencilKit', 'UIKit animations' — with good coverage and no reliance on opaque jargon.

Scoped to UIKit bridging/modernization/debugging with distinct triggers; the SwiftUI overlap is intentional and limited to bridging, so it is unlikely to fire for the wrong skill.