@jjuidev/cs

CS — code switch. Switch Claude Code between API providers and model sets from one command.

cs stores named profiles (base URL, token, model IDs) and writes the active one into ~/.claude/settings.json so Claude Code picks it up.

macOS only. Requires Node.js >= 18.

Install

npm install -g @jjuidev/cs

Quick start

# Create a profile
cs config -n work -u https://api.anthropic.com -t sk-ant-...

# Switch to it
cs use work

# See what is active
cs current

Commands

| Command | Description | |---------|-------------| | cs config | Create or update a profile (no flags = show it) | | cs use <name> | Activate a profile, write it to Claude settings | | cs current | Show the active profile | | cs ls | List all profiles | | cs remove <name> | Delete a profile (default cannot be removed) | | cs reset | Delete every profile except default, restore its official values | | cs env | Interactive editor for extra env vars (global or per-profile) |

Run cs <command> --help for full usage.

cs config

| Flag | Alias | Description | |------|-------|-------------| | --name | -n | Profile name (default: default) | | --url | -u | API base URL | | --token | -t | API token | | --haiku | -h | Haiku model ID | | --sonnet | -s | Sonnet model ID | | --opus | -o | Opus model ID | | --fable | -f | Fable model ID |

cs config -n glm -u https://open.bigmodel.cn/api/anthropic -t <token> \
  -s glm-4.6 -o glm-4.6

Flags are partial — omitted fields keep their current value. A new profile starts blank: only the flags you pass are set, and nothing is inherited from the default profile.

Omit --fable and it mirrors --opus, since most providers expose no fable tier. Pass --fable to set it apart.

Leave both --url and --token empty to let Claude Code use its own /login authentication. A token without a URL is rejected.

Unknown flags are silently ignored. --sonet is not --sonnet; a typo means the field is left untouched, and on a new profile it stays empty.

1M context: the [1m] suffix

Append [1m] to any model ID to opt that profile into a 1M context window:

cs config -n work -s 'claude-sonnet-5[1m]'

| Profile has [1m] | Default env written | |---|---| | yes | CLAUDE_CODE_DISABLE_1M_CONTEXT=0, CLAUDE_CODE_AUTO_COMPACT_WINDOW=1000000 | | no | CLAUDE_CODE_DISABLE_1M_CONTEXT=1 |

Without [1m], cs explicitly disables the 1M window. The suffix is a cs marker, not part of the model ID sent to the API — your account still needs access to that context tier.

These are defaults computed on every cs use. Any value you set with cs env (global or profile) overrides them, e.g. a profile CLAUDE_CODE_AUTO_COMPACT_WINDOW=400000 survives model changes.

What cs use writes

Into ~/.claude/settings.json under env:

| Variable | Source | |----------|--------| | ANTHROPIC_BASE_URL | profile url | | ANTHROPIC_AUTH_TOKEN | profile token | | ANTHROPIC_DEFAULT_MODEL | profile sonnet | | ANTHROPIC_DEFAULT_HAIKU_MODEL | profile haiku | | ANTHROPIC_DEFAULT_SONNET_MODEL | profile sonnet | | ANTHROPIC_DEFAULT_OPUS_MODEL | profile opus | | ANTHROPIC_DEFAULT_FABLE_MODEL | profile fable |

Then, later wins: [1m] defaults → global cs env → profile cs env.

cs use replaces the env block rather than merging it, so keys left over from a previous profile are cleared. Profiles stay isolated from each other.

cs use also sets top-level "disableClaudeAiConnectors": true on every profile, overwriting the key if you set it yourself. There is no profile for which cs leaves claude.ai connectors enabled.

cs env

Interactive. Pick a scope (global or one profile), then set or unset a key.

• Keys must match [A-Z][A-Z0-9_]*
• Profile env overrides global env; both override the [1m] defaults
• Values are never echoed back to the terminal

Files

| Path | Contents | |------|----------| | ~/.config/cs/cs.json | Profiles, active profile, global env | | ~/.config/cs/cs.json.bak | Copy taken before a one-time format migration | | ~/.claude/settings.json | Claude Code settings that cs writes into |

Both are written with mode 0600.

License

MIT