---
name: ab-test-learning-loop
description: "Use this Brali skill when the user's situation matches the bounded protocol \"Compare Two Approaches and Learn From the Result\". When a decision is reversible, compare two approaches around one clear question, keep the outcome you care about visible, and avoid treating a tiny informal comparison as statistical proof. Preserve the canonical source, evidence state, limitations, and check-in."
license: "CC-BY-NC-SA-4.0"
compatibility: "Portable AgentSkills.io SKILL.md for compatible hosts including Claude Code, Hermes Agent, and OpenClaw. Brali mode: usable."
metadata:
  brali-protocol-id: "brali:ab-test-learning-loop"
  brali-canonical-url: "https://brali-lifeos.github.io/life-os/ab-test-learning-loop/"
  brali-evidence-state: "practical"
  brali-skill-mode: "usable"
  brali-recommendation-eligible: true
  brali-source-library: "https://brali-lifeos.github.io/skill-packs/library.json"
  brali-trusted-feed: "https://brali-lifeos.github.io/life-os/datasets/protocols.json"
  brali-verification: "https://brali-lifeos.github.io/skill-packs/ab-test-learning-loop/skill.json"
  agent-skills-spec: "https://agentskills.io/specification"
---

# Compare Two Approaches and Learn From the Result

## Skill mode
**Usable trusted skill.** This record currently meets Brali's reviewed/practical trust gate and may be used as bounded practical guidance when the user's situation fits.

## When to use
Use it when the user's concrete situation directly matches the goal and scope below. Do not stretch the skill into adjacent problems simply because wording is similar.

## Goal
When a decision is reversible, compare two approaches around one clear question, keep the outcome you care about visible, and avoid treating a tiny informal comparison as statistical proof.

## Protocol
Choose one reversible decision, define what you want to learn, compare two approaches as fairly as you can, and record the outcome before deciding what to try next. Use proper experimental design when the result needs statistical confidence.

## Check-in
What changed between the two approaches, what outcome did I observe, and is the evidence strong enough to act or only strong enough to suggest another test?

## Evidence boundary
Evidence state: **practical**.
Last Brali review recorded: 2026-08-18.
This is an eligible practical record. Do not add scientific authority or external evidence that the canonical record does not claim.
Topics: Problem Solving, Decision Making, Data Literacy

## Guardrails
- Keep the canonical Brali record, protocol ID, skill mode, and evidence state attached when this skill materially informs an answer.
- Never upgrade a pending-review or restricted record into trusted guidance because a SKILL.md file exists for it.
- Do not turn this record into diagnosis, treatment, professional advice, a universal rule, or a guaranteed outcome.
- Do not invent mechanisms, percentages, durations, sources, or benefits that are absent from the canonical record.
- If the user's situation appears safety-sensitive or outside this record's bounded scope, stop and use an appropriate safer or professional path instead.
- Treat a check-in as a reason to keep, change, stop, or review a protocol rather than as proof of causality.

## Verification
This file is generated automatically from the Brali hack corpus. Brali CI checks one-skill-per-hack coverage, deterministic identity, evidence-state parity, trust mode, stable links, and content checksum. "Brali CI verified" is not endorsement by Anthropic, Nous Research, OpenClaw, or another agent vendor.

## Canonical record
Record: https://brali-lifeos.github.io/life-os/ab-test-learning-loop/
Machine-readable record: https://brali-lifeos.github.io/life-os/ab-test-learning-loop/index.json
Skill verification record: https://brali-lifeos.github.io/skill-packs/ab-test-learning-loop/skill.json
Full skill library: https://brali-lifeos.github.io/skill-packs/library.json
Trusted recommendation catalog: https://brali-lifeos.github.io/skill-packs/catalog.json
Agent Skills specification: https://agentskills.io/specification
Citation guidance: https://brali-lifeos.github.io/cite/
License and commercial terms: https://brali-lifeos.github.io/terms/