html-resource-hints SKILL.md skillA
html-resource-hints from thedaviddias/front-end-checklist is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add thedaviddias/front-end-checklist/html-resource-hints@git:20260529.7c05904Pins git:20260529.7c05904 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- thedaviddias/front-end-checklist
- Path
skills/html-resource-hints/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260529.7c05904, committed May 29, 2026
- Size
- 2,109 bytes
- Repository stars
- 74,516
- License
- MIT
Use when reviewing templates, rendered HTML, or shared components related to Add resource hints (preload, prefetch, dns-prefetch). Validate the final browser-facing markup, not just the source framework abstraction.
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
# Add resource hints (preload, prefetch, dns-prefetch) The browser's HTML parser discovers resources sequentially — a font referenced in a CSS file won't be fetched until the CSS is parsed. Resource hints break this dependency chain, allowing the browser to start fetching critical resources in parallel with parsing. A single preload directive for a critical font can eliminate a 100–300ms Flash of Invisible Text. ## Quick Reference - preload forces immediate download of resources needed by the current page - prefetch fetches resources likely needed for the next navigation (low priority) - dns-prefetch resolves DNS for third-party origins in advance - preconnect does DNS + TCP + TLS for origins you'll connect to soon ## Check Look at this HTML file for late-discovered critical resources — fonts referenced in CSS, hero images, and key scripts. Identify where preload or preconnect hints would help. ## Fix Add appropriate preload hints for critical fonts, images, and scripts. Add preconnect for third-party domains used early in the page. ## Explain …
Read the whole file at its exact version.
How to install
mdr add thedaviddias/front-end-checklist/html-resource-hints@sha256:ca518121008cdbfbThe line at the top of this page pins the label git:20260529.7c05904, 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_dbjceqmxe5tzazdr)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 29, 2026.
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 (2109 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
thedaviddias/front-end-checklist · 74,516 stars · license MIT · pushed 2026-10-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dbjceqmxe5tzazdr GET https://markdownregistry.com/api/v1/resolve?ref=thedaviddias/front-end-checklist/html-resource-hints GET https://markdownregistry.com/api/v1/blob/ca518121008cdbfb4698bb24ea87b7e8406d335eed9b7c4e3f70031c34f33c9b
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.