lightning-vue

Improves maintainability, performance, and architecture in lightning-vue. Use for non-trivial refactors, benchmark-driven optimization, harness work, or design cleanup that must preserve baseline suites, compare repeated measurements, update architecture docs, and keep phase boundaries observable.

Designs or refines internal playgrounds, debug UIs, trace viewers, and inspector panels in lightning-vue. Use when a tool needs a clearer primary path, better reference-vs-editing separation, more readable code surfaces, and calmer technical-doc style UI.

Improves scoped selector behavior and performance in lightning-vue. Use for changes under packages/compiler/src/style/lightningcss/scoped, adjacent nesting or compileSession code, or scoped-selector harnesses that need the scoped correctness loop, benchmark baselines, and architecture checks.