---
title: "perf-theory-tester"
description: "Test hypotheses using controlled experiments."
type: skill
canonical_url: https://claudary.paisolsolutions.com/skills/skill-28
source: "Claudary"
difficulty: intermediate
author: "Claude Code Knowledge Pack"
date: 2026-07-10T11:44:25.812Z
license: CC-BY-4.0
attribution: "perf-theory-tester — Claudary (https://claudary.paisolsolutions.com/skills/skill-28)"
---

# perf-theory-tester
Test hypotheses using controlled experiments.

## Overview

---
name: perf-theory-tester
description: "Use when running controlled perf experiments to validate hypotheses."
version: 5.1.0
---

# perf-theory-tester

Test hypotheses using controlled experiments.

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

## Required Steps

1. Confirm baseline is clean.
2. Apply a single change tied to the hypothesis.
3. Run 2+ validation passes.
4. 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>
```

## Constraints

- One change per experiment.
- No parallel benchmarks.
- Record evidence for each run.

---

Source: [Claudary](https://claudary.paisolsolutions.com/skills/skill-28) · https://claudary.paisolsolutions.com