web-performance-web-performance SKILL.md skillA
web-performance-web-performance from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/web-performance-web-performance@git:20260906.9d6ccd9Pins git:20260906.9d6ccd9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/web-performance-web-performance/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260906.9d6ccd9, committed Sep 6, 2026
- First version recorded
- Feb 2, 2026
- Size
- 11,637 bytes
- Repository stars
- 26
- License
- MIT
Bundle optimization, render performance, Core Web Vitals.
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
# Web Performance Patterns > **Quick Guide:** Three numbers decide whether a page is fast: LCP under 2.5s, INP under 200ms, CLS under 0.1. Bundle size is the lever that moves the first two, so budget it — around 200 KB gzipped for the main bundle — and split by route. Measure before optimising and measure again in production, because a lab score and a real user's session disagree. With the React Compiler enabled, memoisation is automatic; a hand-written `useMemo` needs a profile behind it. **Detailed Resources:** - [examples/core.md](examples/core.md) — memoisation, virtual scrolling, debouncing - [examples/code-splitting.md](examples/code-splitting.md) — lazy routes, dynamic imports, tree shaking, budget enforcement - [examples/web-vitals.md](examples/web-vitals.md) — LCP, INP and CLS patterns, and field measurement - [examples/image-optimization.md](examples/image-optimization.md) — formats, responsive sources, lazy loading - [reference.md](reference.md) — threshold and budget tables, format comparison --- ## Which path applies - **The bundle is the problem** — a slow first load, a large main chunk, a heavy dependency; go to …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/web-performance-web-performance@sha256:094c48b7b3c259cdThe line at the top of this page pins the label git:20260906.9d6ccd9, 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_6hrn4xctte3t2oof)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 2, 2026 and Sep 6, 2026, about one every 108 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260906.9d6ccd9 latest | 2026-09-06 | 9d6ccd9 | 11,637 B | A | view · diff |
| git:20260316.00cb75b | 2026-03-16 | 00cb75b | 10,882 B | A | view · diff |
| git:20260202.b236384 | 2026-02-02 | b236384 | 8,413 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 (11637 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
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6hrn4xctte3t2oof GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/web-performance-web-performance GET https://markdownregistry.com/api/v1/blob/094c48b7b3c259cda5e8f743cc5b52a3c149bdcd43f8b384d7215ea902796e51
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.