Libretto is an open-source AI toolkit from Saffron Health for building and maintaining browser automations. It provides coding agents with a live Chromium browser and a token-efficient CLI to inspect pages, capture network traffic, record user actions, and debug broken workflows. Key use cases include one-shot script generation, interactive script building, converting browser automations to direct API calls, and fixing broken integrations. It supports multiple AI providers (OpenAI, Anthropic, Gemini, Vertex) for snapshot analysis and integrates with Playwright for TypeScript-based automation scripts.
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