/**
 * Model Capability Detection
 *
 * Pure declarative capability accessors. Capabilities are configured per-model
 * via the `capabilities` field in `ModelConfig` (settings.json), not via regex
 * or environment variables.
 */
import type { ModelCapabilities } from "../types/config.js";
/**
 * Determines if a model supports prompt caching.
 * @param capabilities - Declarative model capabilities
 * @returns True if promptCaching is explicitly enabled (default: false)
 */
export declare function supportsPromptCaching(capabilities?: ModelCapabilities): boolean;
/**
 * Determines if a model supports image/vision recognition.
 * Opt-out semantics: by default all models are assumed to support vision.
 * @param capabilities - Declarative model capabilities
 * @returns True unless vision is explicitly disabled (default: true)
 */
export declare function supportsVision(capabilities?: ModelCapabilities): boolean;