# Performance Analysis

> Performance analysis. Use for runtime throughput or latency benchmarks, TypeScript compiler cost, performance regressions, comparison harnesses, or thresholds.

- Skill: `foldkit/performance-analysis` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add foldkit/performance-analysis`
- Raw SKILL.md: https://api.skillmd.com/api/skills/foldkit/performance-analysis/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: foldkit (https://skillmd.com/u/foldkit)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/foldkit/performance-analysis

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Validate correctness with focused tests before measuring. Compare the same
focused operation and environment across revisions; a single unpaired run is
not evidence of improvement.

Select every applicable branch:

- **Runtime performance:** Read [runtime.md](runtime.md).
- **Type performance:** Read [types.md](types.md).

The task is complete when every selected branch meets its measurement and
reporting criteria and applicable root checks pass or are reported as not
runnable.