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Performance optimization Claude skill

The Performance optimization skill helps an AI assistant find common bottlenecks and check whether a proposed fix actually improves speed.

  • MIT licence
  • ★ 108,502 on GitHub (whole repository)
  • Verified against its source 19 Oct 2026
View SKILL.md Repository

What the Performance optimization skill does

An assistant can use it to review performance problems by bottleneck category and to combine two complementary approaches. It treats a fix as unproven until performance is measured again after the change.

How to install it

In Claude Code

/plugin marketplace add addyosmani/agent-skills
/plugin install agent-skills@addy-agent-skills

This plugin also installs: api-and-interface-design, browser-testing-with-devtools, ci-cd-and-automation, code-review-and-quality, code-simplification, constraint-driven-development, context-engineering, debugging-and-error-recovery, deprecation-and-migration, documentation-and-adrs, doubt-driven-development, frontend-ui-engineering, git-workflow-and-versioning, idea-refine, incremental-implementation, interview-me, observability-and-instrumentation, planning-and-task-breakdown, security-and-hardening, shipping-and-launch, source-driven-development, spec-driven-development, test-driven-development, using-agent-skills.

Steps change between versions. Check the official instructions before you install.