add-cpu-op

# Skill: Add CPU Op ## When to use When the Core OpSpec agent has produced a new op spec and you need to implement CPU plugin support: node class, executor strategy, and single-layer tests. ## Steps Execute in order — each step produces artifacts consumed by the next. | Step | File | Purpose | |---|---|---| | 1 | [step1-analysis.md](step1-analysis.md) | Read op spec, determine implementation strategy (reference / JIT / oneDNN), identify ISA targets and precision requirements | | 2 | [step2-implementation.md](step2-implementation.md) | Create node class (header + source), register in factory, hook up shape inference | | 3 | [step3-optimization.md](step3-optimization.md) | Write JIT executor (AVX2/AVX-512/AMX) or oneDNN-backed path; CpuParallel integration | | 4 | [step4-testing.md](step4-testing.md) | Shared single-layer tests, custom CPU tests, dynamic shapes |