Open-source AI agent client Cindy adds unified support for Claude Code and Codex harnesses
Cindy is a local-first open-source AI agent client that provides unified support for Claude Code and Codex harnesses, enabling seamless context continuity and f
Open-source AI agent client Cindy has rolled out core support for unifying Claude Code and Codex execution harnesses under a single local-first environment, letting developers switch between agent runtimes without losing context.

Image source: https://github.com/makecindy/cindy
Key features and harness unification
Cindy is engineered as a local desktop client designed to bridge multiple coding agent paradigms seamlessly.
- Multi-harness architecture: Native compatibility with Claude Code and Codex harnesses, allowing users to switch models and environments mid-task while maintaining active session context and tool states.
- Flexible authentication: Direct integration options for existing billing plans from Claude Code and Codex alongside standalone hosted accounts.
- Local and keyless execution: Support for bringing your own API keys, connecting local LLM backends, and a 'Skip Sign-In' mode that operates entirely locally without mandatory account creation.
Developer workflow integration
Cindy provides a practical alternative for engineers who want to orchestrate local agent tooling while avoiding platform lock-in across different coding assistants. Complete source code and setup instructions are available on the official repository.
Sources
- Official GitHub Repository: https://github.com/makecindy/cindy