/**
 * Model resolution: exact match ("provider/modelId") with fuzzy fallback.
 */
export interface ModelEntry {
    id: string;
    name: string;
    provider: string;
    contextWindow?: number;
    reasoning?: boolean;
    inputTypes?: string[];
}
export interface ModelRegistry {
    find(provider: string, modelId: string): any;
    getAll(): any[];
    getAvailable?(): any[];
}
/**
 * Resolve a model string to a Model instance.
 * Tries exact match first ("provider/modelId"), then fuzzy match against all available models.
 * Returns the Model on success, or an error message string on failure.
 */
export declare function resolveModel(input: string, registry: ModelRegistry): any | string;
export interface ModelPickerSection {
    label: string;
    models: ModelPickerItem[];
}
export interface ModelPickerItem {
    value: string;
    label: string;
    description: string;
}
/**
 * Read ~/.pi/agent/models.json and return providers grouped with their model entries.
 * Returns empty Map if the file is missing or malformed.
 */
export declare function scanModelsConfig(): Map<string, ModelEntry[]>;
/**
 * Build picker sections from scanModelsConfig(), prepending an "inherit" option
 * and appending a "Custom..." option.
 */
export declare function getModelPickerSections(): ModelPickerSection[];
/**
 * Resolve a "provider/modelId" string to the human-readable name from models.json.
 * Falls back to returning modelId as-is if not found.
 */
export declare function getModelLabel(modelId: string): string;