Expert guidelines for Chrome extension development with Manifest V3, covering security, performance, and best practices. Use when building browser extensions, creating popup UIs, implementing content scripts, working with Chrome APIs, managing extension permissions, or publishing to Chrome Web Store.
Turn a captured website into a pixel-verified clone — static HTML routes or shadcn/ui React components — measured against the reference screenshot by one engine.
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originalMIT
When the user wants to write, rewrite, or improve marketing copy for any page — including homepage, landing pages, pricing pages, feature pages, about pages, or product pages. Also use when the user says "write copy for," "improve this copy," "rewrite this page," "marketing copy," "headline help," or "CTA copy." For…
Mathematical spacing, sizing, weight, line-height, letter-spacing, radius, and padding rules for "productive" SaaS interfaces, across density regimes: Dense (Linear / Doppler / Raycast / Vercel), Comfortable/roomier (Cal.com style), and anything in between. Use this whenever you are building OR refining any such UI …
Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI, including chat interfaces. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json…
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Evaluate expectations against an execution transcript and outputs.
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copy · 98%MIT
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: