Cache-stable agent sessions
Keep the system prompt and tool definitions stable so compatible model providers can reuse prefix caches across an extended coding session.
ReasonixCLI
Reasonix
Reasonix is an open-source, DeepSeek-native coding agent for terminal work, designed around prefix-cache stability and a long-running local session.
Reasonix combines a Go-based CLI/TUI with coding tools, plugins, project context, and support for DeepSeek or OpenAI-compatible endpoints. It runs on macOS, Windows, and Linux, uses your own model credentials, and shares its local engine with the Reasonix desktop app and editor extension.
Reasonix
Install
$ npm install -g reasonixLaunch
$ reasonixWhat can Reasonix do?
Tools and configurable plugins
Inspect and change a repository through built-in tools, then adapt the workflow with configuration and plugins instead of a fixed interaction model.
One local engine across interfaces
Use the same Reasonix engine from its terminal interface, desktop application, or an ACP-connected editor extension.
Pricing
Individual
Open Source
Free
Related Products
Desktop · Reasonix
Reasonix Desktop
Reasonix Desktop brings the open-source Reasonix coding agent to a native interface for macOS, Windows, and Linux, using the same local engine as its CLI/TUI.
Extension · Reasonix
Reasonix
Reasonix connects its open-source coding agent to VS Code and VSCodium through ACP, sharing editor context with the same local engine used by its CLI and desktop app.
Frequently asked questions
What is Reasonix?
Reasonix is an MIT-licensed coding agent whose terminal interface is built around DeepSeek models, local tools, and cache-conscious multi-turn sessions.
Which model providers can Reasonix use?
Reasonix includes a DeepSeek-oriented preset and can connect to compatible OpenAI-style endpoints using credentials that you configure locally.
How do I start Reasonix?
Install the CLI using an official package channel, add the required provider credentials, and launch Reasonix from the repository you want it to work with.
Which operating systems support Reasonix?
The Reasonix CLI supports macOS, Windows, and Linux, with official packages and binaries documented for each platform.
What are Reasonix's license and pricing model?
Reasonix is open-source software under the MIT license. The software is free, while usage charges depend on the model provider and account you connect.