The skill in practice
Effective Web
Make the whole browser experience work.
A good interface needs more than a polished first screen. Effective Web connects visual design, implementation, accessibility, performance, and verification, so the result holds up when someone uses a keyboard, opens it on a phone, or encounters an error.
The range
What it covers
- Design and redesign
- Design direction, critique, hierarchy, responsive layout, typography, color, and modernization that preserves existing brand and behavior.
- Components and flows
- Navigation, forms, tables, dialogs, authentication, and clear loading, empty, error, and recovery states.
- Accessibility and localization
- Semantic HTML, keyboard and focus behavior, screen readers, reduced motion, internationalization, RTL, and text expansion.
- React and CSS
- Rendering boundaries, component APIs, maintainable CSS architecture, browser support, and frontend test strategy.
- Discovery, speed, and output
- SEO, structured data, AI search visibility, Core Web Vitals, resource loading, SVG, motion, and HTML/CSS print.
- References and compliance
- Turn supplied references into a specification, check originality and asset provenance, and scope jurisdiction-aware web disclosures and consent.
From request to result
How it works
Read the experience
Identify the user task, the existing design language, and the behavior that must survive a change.
Work across boundaries
Choose the relevant guidance and implement the experience, including its responsive and interaction states.
Verify in the browser
Check the affected layouts, keyboard paths, accessibility, loading cost, and project quality gates.
The result: A browser experience that fits the product and has been checked in the states that matter.
Ask in your own words
Try a real task.
Give the agent the relevant files, source material, and constraints. Start with an outcome like one of these:
Audit this dashboard across hierarchy, accessibility, responsive behavior, and loading cost, then fix the highest-impact problems.
Build this multi-step form in React with clear validation, resilient loading and error states, and a component API we can maintain.
Turn this HTML report into reliable paged-media output with print typography and locale-aware page rules.
Choose the right discipline
When to use it
Use this skill when the deliverable changes, reviews, or verifies a browser experience: a marketing site, content page, web app, dashboard, component, or printable HTML document. General web research alone does not trigger it. Product discovery, backend architecture, and editorial writing belong to the related disciplines. Compliance guidance helps scope the work; it does not replace jurisdiction-specific legal advice.
For the complete workflow and routing rules, read the agent instructions on GitHub .
Add this discipline
Install Effective Web
With Node.js installed, run this command for an agent that supports Agent Skills:
npx skills add sebastian-software/effective-agent --skill effective-web
Then describe your task in the agent. This skill works on its own; add another when the work crosses disciplines.
For managed installations, pinned selections, and multiple agent targets, see all installation options or the DALO setup guide.