Cindy

Cindy is an open source AI agent from XD Inc that brings several agent harnesses, models, tools, memory and skills into one desktop agent that finishes real work in a user's projects and apps. It currently supports Claude Code, Codex and Pi as harnesses, with a native harness in development, and every supported model runs across every supported harness. Users can switch harness or model in the middle of a task while the workspace, memory, skills and tools stay continuous. It is aimed at developers and heavy delegators who want to use the subscriptions and keys they already own without being locked into one stack. A local workspace reuses existing projects, files, apps, terminals and signed in browser sessions, and more than twenty built in tools come with sensible defaults. An advanced mode lets Cindy lead a crew: one combination plans, several workers execute in parallel on implementation, tests and docs, and another model performs an independent review, while Cindy holds the context and acceptance criteria. The software is free. Bringing an API key, local models or an authorized Claude Code or Codex Coding Plan costs nothing extra. The managed service bills actual usage against monthly credit that matches the plan price: Free at $0 with top ups from $10 that never expire; Plus at $20 for one month or $16 per month on an auto renewing plan, with rollover up to $10; Super at $100 or $80, rollover up to $50; and Ultra at $200 or $160, rollover up to $100. Credit covers language, image, video, music, voice and embedding models available in the user's region, and every task shows its cost as it runs.