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ctx

  • ctx is not a prompt.
  • ctx is version-controlled cognitive state.

ctx is the persistence layer for human-AI reasoning.

Deterministic. Git-native. Human-readable. Local-first.

Start here.

Learn what ctx does, set it up, and run your first session.

Pre-1.0: Moving Fast

ctx is under active development. This website tracks the development branch, not the latest release:

Some features described here may not exist in the binary you have installed.

Expect rough edges.

If something is missing or broken, open an issue.

About ctx

What ctx is, how it works, and why persistent context changes how you work with AI.

Is It Right for Me?

Good fit, not-so-good fit, and a 5-minute trial to find out for yourself.

Community

We are the builders who care about durable context.
Join the community. Hang out in IRC. Star ctx on GitHub.

Contributing

Development setup, project layout, and pull request process.

Getting Started

Install the binary, set up the plugin, and verify it works.

Your First Session

Step-by-step walkthrough from ctx init to verified recall.

Common Workflows

Day-to-day commands for tracking context, checking health, and browsing history.

Context Files

What each .context/ file does. What's their purpose. How do we best leverage them.

Configuration

Flexible configuration: .ctxrc, environment variables, and CLI flags.

Prompting Guide

Effective prompts for AI sessions with ctx.