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umit/skills

Skill Claude CodeCodex

Profile JVM applications with async-profiler — sampling-based CPU, allocation, lock, wall-clock, and hardware-counter profiling that produces flame graphs, JFR, and pprof. Use this skill whenever the user investigates JVM performance, mentions hot methods or hot paths, asks about flame graphs, JFR, async-profiler…

umit/skills

Skill Claude CodeCodex

Write Java microbenchmarks with JMH (Java Microbenchmark Harness) that produce trustworthy numbers — not numbers distorted by JIT dead-code elimination, constant folding, insufficient warmup, or single-fork JIT contamination. Use this skill whenever the user writes @Benchmark, mentions JMH, microbenchmark, throughput…