Just-Agent

Generate polished website thumbnails from URLs or screenshots, especially multi-device responsive preview images, repository matrix cards, Open Graph/social cards, app output cards, square app/store thumbnails, and vertical story posters. Use when Codex needs to make a "Just-Thumbnail" image, website screenshot card, responsive device mockup, README hero preview, GitHub Pages thumbnail tool, app output cover, or batch thumbnail assets for different platforms.

Design, select, generate, and audit accessible creative progress bars for React, HTML/CSS, Gallery demos, recipes, CLI workflows, and Agent/MCP integrations.

Route product, UI, frontend, app, Agent, RAG, MCP, CLI, GitHub Actions, docs, security, observability, and release-readiness tasks to the right Factor Skill. Use when auditing, refactoring, packaging, or improving a project and the best review lens is not yet obvious.