quality-performance SKILL.md skillA
quality-performance from heymegabyte/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add heymegabyte/claude-skills/quality-performance@git:20260925.2a7fb4fPins git:20260925.2a7fb4f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- heymegabyte/claude-skills
- Path
25-quality-performance/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260925.2a7fb4f, committed Sep 25, 2026
- First version recorded
- Sep 25, 2026
- Size
- 2,300 bytes
- Repository stars
- 26
- License
- a license file GitHub does not identify
Speed, accessibility, and testing bars every delivered app must clear — Core Web Vitals, WCAG 2.2 AA, TDD real-browser E2E, and the build-fail gates.
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
# Quality & Performance — every app must clear these bars
## Core Web Vitals (per route)
- LCP ≤ 2.0s · CLS ≤ 0.05 · INP ≤ 100ms (cinematic target; ≤ 200ms hard ceiling). Per-route asset budget enforced.
- Lighthouse: Performance ≥ 75 · Accessibility ≥ 95, run in CI (Lighthouse CI).
## Accessibility (WCAG 2.2 AA)
- axe-core 0 violations at all 6 breakpoints (375 · 390 · 768 · 1024 · 1280 · 1920). ADA Title II ready.
- Everything keyboard-operable; visible focus; honors `prefers-reduced-motion`. (Contrast/target-size specifics live in `visual-experience`.)
## Testing (TDD-first, real flows)
- Failing Playwright E2E spec BEFORE implementation — watch RED → GREEN. Bug fix = failing regression test FIRST. No feature without ≥1 E2E; no fix without ≥1 regression.
- E2E runs against the PROD URL in a real browser: `goto('/')` then navigate by clicks/keyboard only (no `page.goto` after load). Deterministic (locator waits, no sleeps), parallel-safe, hermetic.
- Every clickable element · form field · nav link · API endpoint · modal · keyboard shortcut · error/empty/loading state has ≥1 E2E asserting it against prod.
…Read the whole file at its exact version.
How to install
mdr add heymegabyte/claude-skills/quality-performance@sha256:357f6d778bf8d578The line at the top of this page pins the label git:20260925.2a7fb4f, 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_i4hfqo3rfw7atlun)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Sep 25, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260925.2a7fb4f latest | 2026-09-25 | 2a7fb4f | 2,300 B | A | view · diff |
| git:20260925.88db115 | 2026-09-25 | 88db115 | 2,066 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 (2300 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
heymegabyte/claude-skills · 26 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_i4hfqo3rfw7atlun GET https://markdownregistry.com/api/v1/resolve?ref=heymegabyte/claude-skills/quality-performance GET https://markdownregistry.com/api/v1/blob/357f6d778bf8d578325eb0a0df964a4247882b5295c02074fe16b72e7efd6e25
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.
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