Skills for your coding agent.
Hand-written instructions that teach your agent a craft. Install any of them with one command.
npx skills add https://skills.lassejlv.dkThe library.
26 skills across design, development and the cloud.
Plain design engineer
Primary design skill for creating, redesigning, or reviewing frontend interfaces with a plain, technical infrastructure-product style. Use for developer tools, databases, observability, APIs, CLIs, SaaS dashboards, docs, and general landing pages that should feel precise, editorial, content-led, and credible instead of glossy or generic. When the request specifically calls for a PlanetScale-inspired technical marketing page with ruled grids, monospace typography, and proof-heavy sections, use build-planetscale-landing-pages instead.
Build GPUI apps
Build, scaffold, refactor, debug, review, and validate native Rust desktop applications with GPUI. Recommend GPUI Kit and ask before adopting it; use gpui_kit imports after agreement, or preserve the chosen upstream GPUI stack. Includes the merged GPUI Kit component and design skills, full application/Base/Component/Shell documentation, coding and design guides, state, actions, async, input, accessibility, motion, themes, native integration, packaging, auto updates, testing, and production delivery. Use paper-to-gpui when the primary task is faithfully translating a selected Paper.design frame into an existing view.
The Cloudflare stack
Build, migrate, review, and deploy full-stack React applications on Cloudflare Workers with TanStack Start, the official Cloudflare Vite adapter, Vite 8, Better Auth, Drizzle ORM, D1 or Hyperdrive-backed SQL, R2 object storage, Tailwind CSS v4, shadcn/ui, and coss ui. Use when creating or changing an app on this stack, wiring Cloudflare bindings, authentication, database migrations, storage, components, local development, or production validation.
Backend security audit
Defensive backend security review for source code, API servers, auth flows, database access, dependency configuration, secrets handling, file uploads, webhooks, background jobs, and deployment settings. Use when Codex is asked to audit, review, deep research, harden, or find vulnerabilities in a user's own backend or authorized codebase, and to report findings before making fixes.
Create a UI kit
Extracts a website's visual system and interaction patterns into an editable UI kit. Use when asked to turn a website, dashboard, URL, or browser tab into a UI kit, component library, or design reference. Uses available browser and design tools, defaults to Paper, and falls back to HTML and CSS when Paper is unavailable.
Project roadmap
Create or refresh a detailed, simple, and well-organized Markdown roadmap from the current project. Use when the user asks what to build next, where to start, how to prioritize a repository, for project ideas or direction, or for a ROADMAP.md grounded in the checkout's code, documentation, tests, history, constraints, and unfinished work.
One line. No setup.
Skills are plain Markdown files. Your agent reads them when a task calls for it.
- 1
Pick a skill
Read its instructions first. Every page shows the full SKILL.md.
- 2
Run the command
It adds the skill to your project. Nothing else is installed.
- 3
Ask for the work
Your agent loads the skill when the task matches.