Perf Theory Tester

Perf Theory Tester is a Quality skill for Claude Code, published by composio-community in awesome-claude-plugins.

1.9K stars565 forkson composio-community/awesome-claude-pluginsAdded 2026/08/18+1% in starsRepository updated 2026/07/26

View source on GitHub Download repo ZIP

anthropicclaude-aiclaude-codeclaude-code-pluginclaude-code-plugin-marketplaceclaude-code-pluginsclaude-code-plugins-marketplaceclaude-coworkclaude-desktopclaude-pluginsclaude-skillsplugins

Install in seconds

Install Perf Theory Tester

Copy Perf Theory Tester into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/theory-tester ~/.claude/skills/theory-tester

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/composio-community/awesome-claude-plugins.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: perf/skills/theory-tester/SKILL.md in composio-community/awesome-claude-plugins
Installs to: ~/.claude/skills/theory-tester
Collection: One of 23 skills cataloged from this repository
Category: Quality — 1354 skills

What Perf Theory Tester does

Perf Theory Tester runs controlled performance experiments to validate hypotheses. Use it when you need to apply a single change, run multiple validation passes, and record evidence against a baseline.

Perf Theory Tester is cataloged under Quality on DirSkills. Perf Theory Tester comes from a repository tagged anthropic, claude-ai, claude-code, claude-code-plugin and claude-code-plugin-marketplace.

Documentation

README

From the original repository

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>

Constraints

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

Frequently asked about Perf Theory Tester

What else does composio-community publish alongside Perf Theory Tester?
Perf Theory Tester is one of 23 skills that DirSkills catalogs from composio-community/awesome-claude-plugins, the repository it ships in. Its siblings there include Add Subscription, Artifacts Builder and Canvas Design. Each one is a separate skill with its own page in this directory, installs the same way Perf Theory Tester does, and is maintained by composio-community in that same repository. The rest of the collection is listed on the composio-community/awesome-claude-plugins page.
How does Perf Theory Tester compare to other Quality skills?
Perf Theory Tester ranks #577 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Perf Theory Tester against them. Open each page to compare what they document and how they install.