Cctx — Development skill for Claude Code

cctx

[](https://crates.io/crates/cctx) [](https://github.com/nwiizo/cctx/actions/workflows/ci.yml) [](LICENSE)

Manage Claude Code accounts and settings contexts from the command line, kubectx style. Each named account has its own Claude configuration directory; Claude Code handles login, credentials and refresh, and cctx never reads or copies them. Saved settings contexts switch the `settings.json` inside any account. Selecting an account never starts a Claude coding session. Run `claude` yourself.

Install

Pick one:

# From crates.io (needs Rust 1.85 or later)
cargo install cctx --locked

# Prebuilt binary from GitHub Releases (example: macOS on Apple Silicon)
curl -fsSLo cctx https://github.com/nwiizo/cctx/releases/latest/download/cctx-macos-aarch64
chmod +x cctx && sudo mv cctx /usr/local/bin/cctx

# From source
cargo install --git https://github.com/nwiizo/cctx --locked

Release assets: `cctx-linux-x86_64`, `cctx-linux-x86_64-musl` (static), `cctx-windows-x86_64.exe`, `cctx-macos-x86_64` and `cctx-macos-aarch64`. Run the same `cargo install` command again to upgrade.

Account commands need `claude` on PATH. The account workflow was developed against Claude Code 2.1.278.

Shell setup

Selecting an account changes `CLAUDE_CONFIG_DIR` in your current shell, which a binary cannot do by itself, so load the shell function once in your shell configuration. Every other command works without it.

Fish (`~/.config/fish/config.fish`):

if status is-interactive; and command -sq cctx
    cctx --shell-init fish | source
end

Bash (`~/.bashrc`) or Zsh (`~/.zshrc`):

eval "$(cctx --shell-init bash)"   # zsh: eval "$(cctx --shell-init zsh)"

Open a new terminal, or run the same line once in the current one.

Everyday commands

| Task | Command | |