build-frontend SKILL.md skillA
build-frontend from phelan164/codex-howto is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add phelan164/codex-howto/build-frontend@git:20260731.42e092cPins git:20260731.42e092c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- phelan164/codex-howto
- Path
skills/build-frontend/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260731.42e092c, committed Jul 31, 2026
- First version recorded
- Jul 24, 2026
- Size
- 1,567 bytes
- Repository stars
- 20
- License
- MIT
Build or modify frontend interfaces using repository-native components while preserving accessibility, responsive behavior, state handling, and visual verification. Use for UI features, design implementation, forms, client-side defects, and frontend refactors; do not use for backend-only or infrastructure-only work.
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
# Build Frontend ## Domain contract - Preserve the project’s framework, styling system, and component conventions. - Do not invent API response fields or silently change backend contracts. - Do not replace an established design system with custom one-off styling. - Define loading, empty, error, success, and disabled states that the changed flow can reach. - Keep semantic HTML, keyboard navigation, focus behavior, labels, and contrast in scope. - Avoid speculative shared abstractions for a single component. - Treat screenshots and mockups as visual references, not proof of interaction behavior. - Do not claim visual verification unless the UI was rendered or inspected. ## Execute and verify Read [references/verification.md](references/verification.md) for UI, accessibility, responsive, and browser verification. Load it when the task changes rendered behavior or interaction. Reuse existing components and tokens, implement the smallest coherent change, and prove behavior at the lowest useful layer. Prefer: ```text component test → feature test → type/lint → build → visual/interaction check ``` If a command cannot run, report the exact blocker and what remains unverified.
Read the whole file at its exact version.
How to install
mdr add phelan164/codex-howto/build-frontend@sha256:8c34e89a05f58bbcThe line at the top of this page pins the label git:20260731.42e092c, 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_7awcw6ziqjw4mer7)
7 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 24, 2026 and Jul 31, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260731.42e092c latest | 2026-07-31 | 42e092c | 1,567 B | A | view · diff |
| git:20260724.a8a7148 | 2026-07-24 | a8a7148 | 2,469 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 (1567 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
phelan164/codex-howto · 20 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7awcw6ziqjw4mer7 GET https://markdownregistry.com/api/v1/resolve?ref=phelan164/codex-howto/build-frontend GET https://markdownregistry.com/api/v1/blob/8c34e89a05f58bbc6dc8beb646673bddd6c43afa00e1756fdcf434ed98b2bc21
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.