Introducing Showboat and Rodney, so agents can demo what they’ve built

kept by eddie feb 12

Simon Willison introduces Showboat and Rodney, CLI tools for coding agents to create Markdown demos and browser automation scripts to verify their work.

Have your agent record video demos of its work with shot-scraper video
Simon Willison introduces shot-scraper video, a tool that records video demos from a YAML storyboard using Playwright, enabling coding agents to demonstrate their work.
also on shot-scraper, Playwright, #open-source, #ai-coding, #developer-tools
Self-updating screenshots
A developer describes a build system that auto-captures screenshots from a live web app via Markdown comments, ensuring documentation images never go stale.
also on shot-scraper, #developer-tools
Webwright | Terminal-Native Web Agents
Webwright lets AI agents control browsers via terminal commands and reusable scripts, achieving 60.8% on Odysseys and 86.7% on Online-Mind2Web with only 1K lines of harness code.
also on Playwright, #cli, Claude Code, #open-source, #developer-tools
Bun 1.4 | Bun Blog
Bun 1.4 rewrites the runtime in Rust, adds built-in headless browser automation, image and markdown APIs, boosts Node.js compatibility, and reduces CPU and memory usage.
also on Playwright, Claude Code, #open-source, #ai-coding, #developer-tools
Fragments: April 29
The post collects expert perspectives on AI-assisted development, emphasizing verification over generation, harness engineering, function structure, and the cultural divide between software thinking and human experience.
also on Simon Willison, Claude Code, #ai-coding, #productivity, #developer-tools