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Perf Theory Tester

  • 63 installs
  • 931 repo stars
  • Updated July 26, 2026
  • avifenesh/agentsys

perf-theory-tester is a skill that validates performance hypotheses via controlled single-change experiments.

About

perf-theory-tester validates performance hypotheses through controlled experiments. A developer uses it to confirm a clean baseline, apply one change tied to a hypothesis, run repeated validation passes, then revert before the next test. It records metric deltas and an accept, reject, or inconclusive verdict for each experiment.

  • Validates a performance hypothesis with a single controlled change per experiment
  • Runs 2+ validation passes and reverts to baseline before the next experiment
  • Emits an accept/reject/inconclusive verdict with metric deltas and evidence

Perf Theory Tester by the numbers

  • 63 all-time installs (skills.sh)
  • Ranked #284 of 596 Debugging skills by installs in the Skillselion catalog
  • Data as of Aug 5, 2026 (Skillselion catalog sync)
At a glance

perf-theory-tester capabilities & compatibility

Capabilities
perf experiment · benchmark runner · baseline comparison
Use cases
testing · debugging
Pricing
Free
From the docs

What perf-theory-tester says it does

Test hypotheses using controlled experiments.
SKILL.md
One change per experiment.
SKILL.md
No parallel benchmarks.
SKILL.md
npx skills add https://github.com/avifenesh/agentsys --skill perf-theory-tester

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Listed on Skillselion
Installs63
repo stars931
Last updatedJuly 26, 2026
Repositoryavifenesh/agentsys

What it does

Run controlled, single-change perf experiments to accept or reject a performance hypothesis.

Who is it for?

Confirming whether a single change improves a measured performance metric.

Skip if: Generating the hypotheses or running parallel benchmarks.

When should I use this skill?

When running controlled perf experiments to validate hypotheses.

What you get

A per-hypothesis verdict (accept/reject/inconclusive) with metric deltas and recorded evidence.

  • experiment verdict with metric deltas and evidence

By the numbers

  • 4 required steps
  • 2+ validation passes
  • one change per experiment

Files

SKILL.mdMarkdownGitHub ↗

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.

Related skills

Debuggingbackendtesting

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