config

type BackendPoolConfig struct {
	// ModelRef is the model catalog reference (alias, profile, or canonical
	// target) attached to this backend pool. Optional.
	ModelRef string `yaml:"model_ref,omitempty"`

	// Providers is the ordered list of named provider references.
	Providers []string `yaml:"providers"`

	// Strategy is the provider selection algorithm: "round-robin" or
	// "first-available". Defaults to "first-available" if empty.
	Strategy string `yaml:"strategy,omitempty"`
}

type BashOutputFilterConfig struct {
	Mode         string `yaml:"mode,omitempty"`
	RTKBinary    string `yaml:"rtk_binary,omitempty"`
	MaxBytes     int    `yaml:"max_bytes,omitempty"`
	RawOutputDir string `yaml:"raw_output_dir,omitempty"`
}

type BashToolConfig struct {
	OutputFilter BashOutputFilterConfig `yaml:"output_filter,omitempty"`
}

type Config struct {
	// Providers is a map of named provider configurations.
	Providers map[string]ProviderConfig `yaml:"providers"`

	// Endpoints is the endpoint-first provider schema. Each entry is expanded
	// into an internal generated provider during finalization.
	Endpoints []EndpointConfig `yaml:"endpoints,omitempty"`

	// Routing configures default model-first resolution behavior.
	Routing RoutingConfig `yaml:"routing,omitempty"`

	// ModelRoutes is the deprecated (ADR-005) model-first routing table.
	// Populated by a second-pass YAML decoder in legacy_model_routes.go
	// (no parsing tag is declared here), so config.go itself owns no
	// part of the deprecated surface.
	ModelRoutes map[string]ModelRouteConfig `yaml:"-"`

	// Backends is a map of named backend pool configurations.
	Backends map[string]BackendPoolConfig `yaml:"backends,omitempty"`

	// DefaultBackend is the name of the default backend pool. When set, it
	// takes precedence over Default for runs that do not name a provider
	// or backend explicitly.
	DefaultBackend string `yaml:"default_backend,omitempty"`

	// ModelCatalog configures the optional external manifest path.
	ModelCatalog ModelCatalogConfig `yaml:"model_catalog,omitempty"`

	Tools ToolsConfig `yaml:"tools,omitempty"`

	// Telemetry configures OTel export enablement and runtime-specific
	// pricing keyed by provider system and resolved model.
	Telemetry telemetry.Config `yaml:"telemetry,omitempty"`

	// Default is the name of the default provider. If empty, uses the first.
	Default string `yaml:"default"`

	// MaxIterations limits agent loop iterations.
	MaxIterations int `yaml:"max_iterations"`

	// ReasoningByteLimit is the maximum bytes of pure reasoning_content
	// allowed before the stream is aborted. Default is 256KB.
	// Set to 0 for unlimited (same pattern as max_iterations).
	ReasoningByteLimit int `yaml:"reasoning_byte_limit"`

	// ReasoningStallTimeout is the maximum duration (e.g. "5m", "300s")
	// that only reasoning tokens may arrive before the stream is aborted.
	// Default is 300s. Set to "0s" for unlimited.
	ReasoningStallTimeout string `yaml:"reasoning_stall_timeout"`

	// CompactionPercent scales the effective context window used to trigger
	// automatic compaction. Range 1-100. 0 or absent = use default (95%).
	// The actual trigger threshold = context_window × percent/100 - reserve_tokens.
	CompactionPercent int `yaml:"compaction_percent,omitempty"`

	// SessionLogDir is where session logs are written.
	SessionLogDir string `yaml:"session_log_dir"`

	// Preset is the system prompt preset name.
	Preset string `yaml:"preset"`

	// ImportedFrom records the last import source for drift detection.
	ImportedFrom *ImportMetadata `yaml:"imported_from,omitempty"`

	// Legacy flat fields for backwards compatibility.
	LegacyProvider string `yaml:"provider,omitempty"`
	LegacyBaseURL  string `yaml:"base_url,omitempty"`
	LegacyAPIKey   string `yaml:"api_key,omitempty"`
	LegacyModel    string `yaml:"model,omitempty"`
	// contains filtered or unexported fields
}

type EndpointConfig struct {
	Name      string              `yaml:"name,omitempty"`
	Type      string              `yaml:"type"`
	Host      string              `yaml:"host,omitempty"`
	Port      int                 `yaml:"port,omitempty"`
	BaseURL   string              `yaml:"base_url,omitempty"`
	APIKey    string              `yaml:"api_key,omitempty"`
	Headers   map[string]string   `yaml:"headers,omitempty"`
	Reasoning reasoning.Reasoning `yaml:"reasoning,omitempty"`
}

type ImportMetadata struct {
	// Source is the import source ("pi" or "opencode").
	Source string `yaml:"source"`
	// Timestamp is when the import occurred (RFC3339).
	Timestamp string `yaml:"timestamp"`
	// SourceHash is the truncated SHA-256 of the source files.
	SourceHash string `yaml:"source_hash"`
}

type ModelCatalogConfig struct {
	Manifest string `yaml:"manifest,omitempty"`
}

type ProviderConfig struct {
	Type      string             `yaml:"type"`               // "openai", "openrouter", "lmstudio", "omlx", "lucebox", "vllm", "ollama", or "anthropic"
	BaseURL   string             `yaml:"base_url,omitempty"` // shorthand for one endpoint
	Endpoints []ProviderEndpoint `yaml:"endpoints,omitempty"`
	APIKey    string             `yaml:"api_key,omitempty"`
	Model     string             `yaml:"model,omitempty"`
	// ModelPattern is a case-insensitive regex applied to auto-discovered model
	// IDs when Model is empty. The first matching model returned by /v1/models
	// is used. If the pattern matches nothing, the first available model is
	// used as a fallback.
	ModelPattern string            `yaml:"model_pattern,omitempty"`
	Headers      map[string]string `yaml:"headers"` // extra HTTP headers (OpenRouter, Azure)
	// Reasoning controls model-side reasoning with one scalar value.
	Reasoning reasoning.Reasoning `yaml:"reasoning,omitempty"`
	// MaxTokens is the maximum number of tokens the model may generate per turn.
	// Zero means use the provider's default.
	MaxTokens int `yaml:"max_tokens,omitempty"`
	// ContextWindow is the model's context window in tokens. Used to configure
	// automatic compaction: the compactor triggers when message history approaches
	// this limit. Zero means use the compaction package default (8192).
	ContextWindow int `yaml:"context_window,omitempty"`
	// Sampling overrides the harness defaults for sampling parameters.
	// Any nil/unset field falls through to harness/server defaults.
	Sampling *SamplingProfile `yaml:"sampling,omitempty"`
}

type ProviderEndpoint struct {
	Name    string `yaml:"name,omitempty"`
	BaseURL string `yaml:"base_url"`
}

type ProviderOverrides struct {
	Model           string
	ModelRef        string
	AllowDeprecated bool
}

type RoutingConfig struct {
	// DefaultModel is the default requested model-route key to use when the
	// caller does not set --model, --model-ref, or --provider.
	DefaultModel string `yaml:"default_model,omitempty"`

	// DefaultModelRef resolves through the model catalog to a canonical route
	// key when no explicit provider or model input is supplied.
	DefaultModelRef string `yaml:"default_model_ref,omitempty"`

	// HealthCooldown controls how long a failed candidate remains deprioritized
	// before it is retried.
	HealthCooldown string `yaml:"health_cooldown,omitempty"`

	// HistoryWindow controls how far back observed routing history is sampled
	// when scoring healthy candidates.
	HistoryWindow string `yaml:"history_window,omitempty"`

	// ProbeTimeout controls provider availability/model probes.
	ProbeTimeout string `yaml:"probe_timeout,omitempty"`

	// ReliabilityWeight weights recent success history when scoring healthy
	// candidates.
	ReliabilityWeight float64 `yaml:"reliability_weight,omitempty"`

	// PerformanceWeight weights observed latency/throughput when scoring healthy
	// candidates.
	PerformanceWeight float64 `yaml:"performance_weight,omitempty"`

	// LoadWeight weights recent selection volume when balancing healthy
	// candidates.
	LoadWeight float64 `yaml:"load_weight,omitempty"`

	// CostWeight weights observed known cost when balancing healthy candidates.
	CostWeight float64 `yaml:"cost_weight,omitempty"`

	// CapabilityWeight weights model benchmark capability (swe_bench_verified)
	// when scoring healthy candidates.
	CapabilityWeight float64 `yaml:"capability_weight"`
}

type SamplingProfile = sampling.Profile

type ToolsConfig struct {
	Bash BashToolConfig `yaml:"bash,omitempty"`
}