Editor Support & Tooling

July 3, 2026 ยท View on GitHub

Coi has editor support for several popular code editors, providing syntax highlighting, completions, and other language features.

VS Code (Official)

VS Code Extension

Install from the VS Code Marketplace or search for "Coi" in the Extensions view.

Repository: coi/vscode

Search for "Coi" in the Extensions view or build manually from the repository.

Sublime Text (Community)

Package Control GitHub

Install from Package Control or see the repository for manual installation instructions.

Repository: SublimeText/Coi

Zed (Community)

GitHub

Repository: jturner/zed-coi

See the repository for manual installation instructions.

AI Assistants & Agents

Coi is new, so an AI assistant won't know it well out of the box. To help, Coi ships a complete, self-contained language and API reference you can load into an assistant's context.

  • llms-full.txt (repository root): the full context. Language reference, every platform API with signatures, complete example programs, and a list of common mistakes to avoid.
  • llms.txt (repository root): a short index in the llms.txt format that links the docs and points to the full context.

coi llms

If the compiler is installed, any agent can fetch the context from the CLI:

coi llms            # print the full language context to stdout
coi llms --path     # print the path to llms-full.txt
coi llms > coi-context.txt   # save it to hand to an assistant

An agent with shell access can discover this on its own: coi --help lists coi llms, which resolves to the same llms-full.txt that sits next to the compiler.

Contributing

Don't see your editor? Contributions are welcome! Open a PR to add support for additional editors.