Perf Theory Tester

composiohq/awesome-claude-pluginsOfficial

This is for when you're doing performance testing and need to stay disciplined about changing one variable at a time. It enforces a clean methodology: confirm your baseline, apply a single change, run validation passes, then revert before the next test. The output format is tidy, giving you hypothesis ID, change summary, metrics delta, and a verdict with evidence trails. The constraints are strict on purpose, no parallel benchmarks, no stacking changes, which honestly feels rigid but that's the point. If you've ever tried to debug a performance regression where three things changed at once, you'll get why this exists. It's less about automation and more about keeping your experiments from turning into chaos.

GitHub stars: 1.7K
last updated: May 1, 2026

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Install

$ npx -y skills add composiohq/awesome-claude-plugins --skill perf-theory-tester --agent claude-code

Installs into .claude/skills of the current project.

Files

perf-theory-tester

Test hypotheses using controlled experiments.

Follow docs/perf-requirements.md as the canonical contract.

Required Steps

Confirm baseline is clean.
Apply a single change tied to the hypothesis.
Run 2+ validation passes.
Revert to baseline before the next experiment.

Output Format

hypothesis: <id>
change: <summary>
delta: <metrics>
verdict: accept|reject|inconclusive
evidence:
  - command: <benchmark command>
  - files: <changed files>