provider

type Config struct {
	ActiveProvider string              `yaml:"active_provider" mapstructure:"active_provider"`
	Lang           string              `yaml:"lang,omitempty" mapstructure:"lang,omitempty"`
	Providers      map[string]Provider `yaml:"providers" mapstructure:"providers"`
}

type Provider struct {
	Name     string `yaml:"name" mapstructure:"name"`
	Type     string `yaml:"type" mapstructure:"type"`
	Endpoint string `yaml:"endpoint" mapstructure:"endpoint"`
	APIKey   string `yaml:"apikey" mapstructure:"apikey"`
	// Model is ccl's local model pool used for TUI mapping, slot defaults, and
	// availability checks. For OpenAI-family providers it is also registered as
	// CLIProxyAPI model routes/aliases; direct Anthropic providers must expose
	// their own /v1/models to Claude Code.
	Model string            `yaml:"model" mapstructure:"model"`
	Env   map[string]string `yaml:"env,omitempty" mapstructure:"env,omitempty"`
	// AnthropicAuth controls how Claude Code authenticates direct Anthropic-compatible providers.
	// Empty and "x-api-key" use ANTHROPIC_API_KEY; "bearer" uses ANTHROPIC_AUTH_TOKEN.
	AnthropicAuth string `yaml:"anthropicAuth,omitempty" mapstructure:"anthropicAuth,omitempty"`
	// OAuthProvider selects an embedded CLIProxyAPI OAuth backend. Supported
	// values are chatgpt, gemini, and grok. The legacy codex value remains readable.
	OAuthProvider string `yaml:"oauthProvider,omitempty" mapstructure:"oauthProvider,omitempty"`
	// OAuthAccountCredential binds this provider to a single credential file
	// (basename of the JSON under ~/.ccl/auth). The OAuth runtime loads only
	// that account when set; empty falls back to all backend credentials.
	OAuthAccountCredential string `yaml:"oauthAccountCredential,omitempty" mapstructure:"oauthAccountCredential,omitempty"`

	// Custom model configuration (Claude Code native features)
	CustomModelID  string            `yaml:"customModelId,omitempty" mapstructure:"customModelId,omitempty"`   // ANTHROPIC_CUSTOM_MODEL_OPTION
	OpusModel      string            `yaml:"opusModel,omitempty" mapstructure:"opusModel,omitempty"`           // ANTHROPIC_DEFAULT_OPUS_MODEL
	SonnetModel    string            `yaml:"sonnetModel,omitempty" mapstructure:"sonnetModel,omitempty"`       // ANTHROPIC_DEFAULT_SONNET_MODEL
	HaikuModel     string            `yaml:"haikuModel,omitempty" mapstructure:"haikuModel,omitempty"`         // ANTHROPIC_DEFAULT_HAIKU_MODEL
	SubagentModel  string            `yaml:"subagentModel,omitempty" mapstructure:"subagentModel,omitempty"`   // CLAUDE_CODE_SUBAGENT_MODEL
	ModelOverrides map[string]string `yaml:"modelOverrides,omitempty" mapstructure:"modelOverrides,omitempty"` // modelOverrides in settings.json
	EffortLevel    string            `yaml:"effortLevel,omitempty" mapstructure:"effortLevel,omitempty"`       // CLAUDE_CODE_EFFORT_LEVEL; empty means Default/follow Claude
	// FastMode mirrors the Claude Code settings.json fastMode flag, the same
	// toggle flipped by the `/fast` slash command. It routes ChatGPT/Codex
	// subscription accounts through Codex's faster responses (≈1.5x speed) at
	// the cost of higher usage; only meaningful for OpenAI Responses OAuth
	// backends (chatgpt/copilot). Empty/zero leaves Claude Code's own setting.
	FastMode bool `yaml:"fastMode,omitempty" mapstructure:"fastMode,omitempty"`
}