e2e-testing SKILL.md skillA
e2e-testing from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/e2e-testing@git:20260729.a707f94Pins git:20260729.a707f94 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/e2e-testing/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260729.a707f94, committed Jul 29, 2026
- First version recorded
- Jun 2, 2026
- Size
- 12,672 bytes
- Repository stars
- 236
- License
- MIT
Use when writing or stabilizing Playwright tests that drive a real browser through multi-step journeys — durable locators, web-first assertions, storageState auth, trace/retries, and flakes that only bite in CI. NOT in-process component tests (that is testing-web), NOT WCAG auditing (that is accessibility), NOT the pre-merge gate (that is verify).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# e2e-testing — drive a real browser, keep it deterministic You write **Playwright** tests that walk a real browser through real user journeys — log in, fill a form, check out, navigate across pages — and you keep those tests deterministic enough to gate a merge. The whole game is one tension: e2e tests catch integration bugs nothing else can, and they are the slowest, flakiest layer you own. Every rule below exists to buy back determinism. Pin `@playwright/test` and provision browsers with `npx playwright install --with-deps`. Current line is **Playwright v1.60.x** (v1.60.0 shipped 2026-05-11). The `_react` / `_vue` selector engines and the `:light` Shadow-DOM suffix were **removed in v1.58.0** — at any version you should be pinning they are long gone, so do not reach for them. ## Is this even an e2e test? E2e is the most expensive layer. Spend it only on journeys that cross pages or services. Route the rest out. | The goal is… | Layer | Why | |---|---|---| | A multi-step journey across pages/auth/services in a real browser | **e2e (here)** | Only a real browser proves the pieces integrate. | …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/e2e-testing@sha256:0a3f22b11960afd8The line at the top of this page pins the label git:20260729.a707f94, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_iex5cytadnfnjjrf)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 2, 2026 and Jul 29, 2026, about one every 29 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.a707f94 latest | 2026-07-29 | a707f94 | 12,672 B | A | view · diff |
| git:20260602.6a1b055 | 2026-06-02 | 6a1b055 | 13,813 B | A | view · diff |
| git:20260602.75f7184 | 2026-06-02 | 75f7184 | 13,736 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12672 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_iex5cytadnfnjjrf GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/e2e-testing GET https://markdownregistry.com/api/v1/blob/0a3f22b11960afd8bd130f6435bf9b897a457484e8e11dcfce936a1df3c7bac4
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from ericrisco/rsc-harness
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