Struct CostConfig 

pub struct CostConfig {
    pub default_model: Option<String>,
    pub models: HashMap<String, String>,
    pub prices: HashMap<String, PriceOverride>,
}

Model declaration for measured-vs-estimated cost reporting.

Proxy-routed clients (Claude Code, Codex, Pi, Gemini CLI, OpenCode) report their real model and billed tokens, so lean-ctx prices them measured with no configuration. MCP-only IDEs (Cursor, Copilot, Windsurf, VS Code, Zed) send their LLM traffic straight to the provider, bypassing lean-ctx — their real model is invisible. Declaring it here lets those estimated turns be priced with the correct model instead of a blended fallback.

Fields

default_model: Option<String>

Fallback pricing model for any client without a per-client entry. Unset/empty → lean-ctx keeps its blended heuristic.

models: HashMap<String, String>

Per-client pricing model, keyed by client id (cursor, copilot, windsurf, claude, codex, …). Used for MCP-only IDEs whose real model lean-ctx cannot observe. Example: [cost.models] then cursor = "claude-opus-4.5".

prices: HashMap<String, PriceOverride>

Operator price overrides (#1189), keyed by model name — for negotiated enterprise rates (committed-use discounts, Azure PTU, zero-rated internal models) that no public catalog can know. Merged into the pricing table as exact entries, overriding embedded and live rows; only a provider-measured bill beats them. Example: [cost.prices."internal-llm"] then input_per_m = 0.10, output_per_m = 0.40.

Implementations

impl CostConfig

pub fn model_for_client(&self, client: &str) -> Option<String>

Configured pricing model for a client id: the per-client entry first, then the global default. None when neither is set (the caller then falls back to the env override / heuristic). Blank entries are ignored.

Trait Implementations

impl Clone for CostConfig

fn clone(&self) -> CostConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CostConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CostConfig

fn default() -> CostConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CostConfig

where CostConfig: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CostConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.