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Cindy is an open-source AI agent developed by XD Inc., currently at version 0.1.79 with four versions released to date. The software is designed to work out of the box, bringing multiple harnesses, models, and tools together into a single agent that finishes real work within users' projects and apps. Ready from day one yet shapeable over time, Cindy runs locally on the user's own machine, operating with their real files and logged-in apps rather than in an isolated environment. The first supported harnesses are Claude Code and Codex, with additional harnesses planned for future integration. A defining characteristic of the software is that models and harnesses mix freely and can switch mid-task, while the workspace, memory, skills, and tools remain continuous throughout. This flexibility allows a single task to be planned, executed in parallel, and reviewed by agents running on different harness and model combinations. Cindy falls into the AI agent and developer productivity category, and its use cases center on completing practical, real-world tasks across software projects and applications. Because it is open source and operates locally, it suits developers and technical users who want an agent they can adapt and shape over time while maintaining control over their own environment and data. The combination of out-of-the-box readiness, local execution, multi-harness and multi-model support, and persistent continuity across tasks distinguishes Cindy as a general-purpose agent platform for project work. With four versions released and version 0.1.79 as the current release, the software is in an early stage of development, and XD Inc. is actively expanding its harness compatibility as the project evolves.
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