import type { SessionConfigOption } from "@agentclientprotocol/sdk";
import type { ThinkingLevel } from "@earendil-works/pi-agent-core";
export declare const MODEL_CONFIG_ID = "model";
export declare const THINKING_LEVEL_CONFIG_ID = "thinking_level";
/** The model fields needed to advertise a choice; ModelInfo and RpcSessionState.model both fit. */
export interface ConfigOptionModel {
    provider: string;
    id: string;
    name?: string;
}
export interface ConfigOptionSource {
    models: readonly ConfigOptionModel[];
    thinkingLevels: readonly ThinkingLevel[];
    currentModel?: ConfigOptionModel;
    currentThinkingLevel: ThinkingLevel;
}
export type ConfigOptionSelection = {
    type: "set_model";
    provider: string;
    modelId: string;
} | {
    type: "set_thinking_level";
    level: ThinkingLevel;
};
export declare function modelChoiceValue(model: Pick<ConfigOptionModel, "provider" | "id">): string;
/** Build the stable configOptions array shared by session/new, session/resume and T19's session/load. */
export declare function buildSessionConfigOptions(source: ConfigOptionSource): SessionConfigOption[];
/** Resolve one advertised value into the RPC command that applies it. */
export declare function resolveConfigOptionSelection(configId: string, value: string | boolean, source: ConfigOptionSource): ConfigOptionSelection | undefined;