perf

Structured performance investigation with baselines, profiling, and evidence-backed decisions

Synthesize perf findings into evidence-backed recommendations and decisions.

Map likely code paths for perf scenarios before profiling.

Append structured investigation notes with exact user quotes and rationale.

Coordinate /perf investigations across all phases, enforcing non-negotiable perf rules.

Generate top performance hypotheses after reviewing git history and current metrics.

Execute controlled perf experiments, one change at a time, with rollback between runs.

Use when synthesizing perf findings into evidence-backed recommendations and decisions.

Use when managing perf baselines, consolidating results, or comparing versions. Ensures one baseline JSON per version.

Use when running performance benchmarks, establishing baselines, or validating regressions with sequential runs. Enforces 60s minimum runs (30s only for binary search) and no parallel benchmarks.

Use when mapping code paths, entrypoints, and likely hot files before profiling.

Use when appending structured perf investigation notes and evidence.

Use when profiling CPU/memory hot paths, generating flame graphs, or capturing JFR/perf evidence.

Use when running controlled perf experiments to validate hypotheses.

Use when generating performance hypotheses backed by git history and code evidence.