# Eng Rigorous Validation

> Enforce reproducible testing, automated verification, and evidence-driven sign-off before merging any change.

- Skill: `tjboudreaux/eng-rigorous-validation` (Agent Skill)
- Install (CLI): `npx skillmds@latest add tjboudreaux/eng-rigorous-validation`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tjboudreaux/eng-rigorous-validation/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tjboudreaux (https://skillmd.com/u/tjboudreaux)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tjboudreaux/eng-rigorous-validation

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# Rigorous Validation

## Intent
- Ship only when behavior is proven, not assumed.
- Treat tests, QA scripts, linters, and on-chain/off-chain simulations as first-class deliverables.
- Capture evidence so reviewers can verify quickly.

## Inputs
1. Canonical test commands (unit, integration, e2e, contract sims, UI snapshots).
2. Acceptance criteria plus measurable signals (logs, screenshots, transaction hashes).
3. Migrations/seed data steps required to exercise the change locally.

## Workflow
1. **Design tests before coding**
   - Specify failing cases and target assertions for each requirement.
   - Align on how to stub external services, wallets, or platform APIs.
2. **Automate and isolate**
   - Prefer deterministic, headless test harnesses; avoid manual-only steps.
   - Seed data/fixtures close to tests to prevent global coupling.
3. **Run the full relevant matrix**
   - Cover affected platforms (iOS/Android/web), runtimes, or chain environments.
   - Capture artifacts (logs, screenshots, traces) for any non-deterministic checks.
4. **Track outcomes**
   - Record exact commands run and their commit hash in the PR or issue.
   - File follow-ups for flaky tests before merging.

## Verification
- All targeted tests green and documented; no TODOs or skipped suites without owner sign-off.
- Static analysis, type-checking, formatters, and contract analyzers pass.
- Evidence (artifacts, hashes, screenshots) attached or linked for reviewer inspection.