Show HN: Dotdotduck – open-source Web Agent SDK (github.com)

The newly launched Dotdotduck (DDDK) presents an open-source Web Agent SDK that enables developers to transform existing websites into AI-native platforms by embedding a sophisticated AI agent directly within the page's DOM. Unlike traditional chatbots, DDDK facilitates context-driven interactions and customer service automation, effectively addressing around 70% of typical customer queries—such as "How do I X?" or "Track my order?"—before they escalate to human support. This is achieved through proactive engagement based on user behavior, thereby improving discoverability and enhancing customer experience. Significantly, DDDK streamlines various functionalities into a singular SDK, combining customer service, analytics, and AI-driven suggestions without the need for multiple third-party tools. Key features include a versatile user interface that displays contextual answers and productivity tools, seamless language translation, and a unified architecture that minimizes development overhead. An integrated context provider enhances interaction by allowing the agent to draw on rich data points, while a new planner can respond to dynamic webpage elements, significantly improving user engagement and satisfaction across devices. The SDK is designed for cost efficiency and user-oriented design, making it a compelling option for businesses seeking to implement AI-driven solutions.