ctx: The Shared Brain for Developers Across AI Coding Agents

Research context and background

ctx is a tool designed to help developers work more efficiently with multiple AI coding assistants. It solves a common problem where developers have to repeat project details every time they switch between different AI tools like Claude Code, Cursor, or Windsurf. Instead of losing progress in temporary chat windows, ctx creates a permanent memory folder for each project. This allows different AI agents to pick up where others left off without needing a full explanation of the project history.

Benefits

The main advantage of ctx is that it keeps your development work continuous. It uses a system called the Continuity Engine to track what you are working on and save your progress. This means if you stop working or switch tools, your next session starts exactly where you left off. The tool also saves money on AI tokens by using smart search methods instead of reading entire files. Every action taken by an AI agent is logged in an audit trail, so you can see exactly what changes were made and by whom. Finally, it includes a live dashboard that lets you monitor your project status and search through your knowledge base in real time.

Use Cases

Developers can use ctx in any project that involves AI-assisted coding. It works across many platforms including Claude Code, Codex, Gemini CLI, Cursor, Windsurf, and Trae. You can set it up globally for all your projects or drop it into a specific project folder. Once initialized, the tool automatically scans your codebase and creates knowledge pages about your tech stack, common mistakes, and design rules. This is especially useful for teams that switch between different AI tools or for individual developers who want to maintain a consistent workflow regardless of which AI assistant they are using at the moment.

Pricing

No pricing information is available for this tool as it is currently in Beta and open source.

Vibes

The project is currently in Beta, which means the core features are working but users might encounter some rough edges. The creator notes that benchmarks for token savings are still being measured and will be shared later. The community reception focuses on the potential to eliminate the friction of context switching between different AI agents.

Additional Information

ctx is an open-source project hosted on GitHub under the repository ATUL-Labs/ctx. It is designed to work with a wide range of AI coding agents through shell hooks, manifest files, or context files. The project is actively being developed with the goal of becoming a standard protocol for shared memory in AI-assisted development.