ByteDance Web Infra open-source vision GUI agent and E2E testing framework. It locates elements from screenshots instead of selectors and drives Web, Android, iOS, HarmonyOS and desktop through one API, shipping YAML cases, TypeScript nodes, replayable reports and CLI skills for coding agents. An agent-harness layer, not an AI-coding tool.
Moli is Lexmount open-source headless browser: a standalone Rust kernel rather than a Chromium wrapper, built for AI agents (9k+ stars, dual Apache-2.0 / MIT). Its core design is on-demand layout and paint — by default it reads page structure without triggering layout or paint; –layout enables real geometry, hit-testing and screenshots, with layout frozen into a one-shot FrozenLayoutTree and paint state discarded after use. CDP, WebDriver Classic and WebDriver BiDi share one kernel, so no separate driver or browser install is needed. Official self-tests: 73 MiB median RSS on a 192-site crawl (headless Chrome: 773 MiB) and 81.88% success over 1,308 comparable Lexbench tasks (Chrome 99.85%). No benchmarks reproduced; recorded as unverified.
A source-code grounded walkthrough of GPT-6 Astra: accessibility trees instead of pixel guessing, a persistent Node REPL, actions written as code, and a Guardian policy that blocks risky operations before execution.
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