feature-flag-experiment-validator
testland/qaValidates the statistical significance of an A/B / feature-flag experiment result - computes per-metric effect size + p-value (chi-square for proportions,…
Scores out of 100 · grade B+
2026-08-20Works
40% of the score100/100
- Loads cleanly: valid frontmatter, required fields present, no dangling references.
Maintained
25% of the score100/100
- no commits in the last 12 weeks
Adopted
20% of the score11/100
- 5 stars on the source repo.
Documented
15% of the score90/100
- 1,042 words with worked examples.
- Ships 3 bundled files.
Install
npx skills add testland/qa/feature-flag-experiment-validatorWhat it says it does
Validates the statistical significance of an A/B / feature-flag experiment result - computes per-metric effect size + p-value (chi-square for proportions, Welch's t-test for continuous metrics), applies a multiple-comparison correction (Bonferroni / Benjamini-Hochberg) when N>1 metric, surfaces practical-vs-statistical-significance distinction, and emits a ship/don't-ship verdict per metric. Use when an experiment has finished and someone is about to ship the winning variant off a dashboard readout, when a result rests on a small sample, or when more than one metric was compared - the rigorous version of "the variant looks better in the dashboard."
Also in testland/qa
| Artifact | Score | What the check found | Type | Reach | Last commit |
|---|---|---|---|---|---|
| idempotency-test-authortestland/qa | clean | Skill | 5 stars | yesterday | |
| flaky-test-quarantinetestland/qa | clean | Skill | 5 stars | yesterday | |
| appium-testingtestland/qa | clean | Skill | 5 stars | yesterday | |
| fast-check-testingtestland/qa | clean | Skill | 5 stars | yesterday | |
| negative-test-generatortestland/qa | clean | Skill | 5 stars | yesterday | |
| test-code-conventionstestland/qa | clean | Skill | 5 stars | yesterday |
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