# E2e

> Prove real browser/device behavior with actual-media evidence. Use when UI behavior, visual output, or user flows need screenshot, recording, or live-run proof.

- Skill: `sgaabdu4/e2e` (Agent Skill, multi-file: 8 files)
- Install (CLI): `npx skillmds@latest add sgaabdu4/e2e`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sgaabdu4/e2e/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: sgaabdu4 (https://skillmd.com/u/sgaabdu4)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/sgaabdu4/e2e

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# E2E

## Contract

- Input = accepted behavior + runnable environment + target evidence mode.
- Evidence classes = automated assertions + persisted state + deployment + visual artifacts; independent status per class.
- Execute through real browser/device UI; exploratory control may discover the path.
- Durable regression = existing project E2E runner + conventions.
- Product defect → preserve reproduction/evidence; fix only when requested.
- Commands + hooks + CI → `deterministic-checks`; assertion strength → `test-quality`.
- Requested/produced screenshot or video → load [visual-evidence.md](references/visual-evidence.md) + validate its receipt.
- Media inspection = isolated reader scope; main context = receipt + `path + sha256` + verdict only; raw media bytes in main context forbidden.
- Proof media = local + display to user; stage/commit only when explicitly accepted as a product asset.

## Route

| Target | Load |
|---|---|
| Web + Playwright | [playwright.md](references/playwright.md) |
| Flutter device/emulator | [flutter.md](references/flutter.md); Riverpod app also → `building-flutter-apps` |
| Other stack | Existing project runner/docs; absent owner → report gap |

| Evidence mode | Required proof |
|---|---|
| Smoke/regression | User path + assertions + result; failure → diagnostic artifacts |
| UI review | Existing UI prototype → accepted requirements + real before screen + production render + comparable final state; new UI → accepted reference/mockup + final states |
| Audit/demo | Video only when requested or necessary to prove temporal behavior |

- Load only matching target reference; combine modes when requested.
- Missing environment/account/data/permission → exact blocker; never fabricate pass evidence.

## Proof

| Result | Evidence |
|---|---|
| `PASS` | Every required evidence class independently PASS |
| `CONCERNS` | Partial surface + exact unproven behavior + next proof |
| `FAIL` | Reproduction step + expected/actual + failure artifacts |

- Artifact = smallest useful set; redact secrets + personal data.
- PASS requires visible outcome + durable state/source-of-truth evidence when behavior persists data.