import type { SimpleStreamOptions, StreamFunction, StreamOptions } from '../types.js';
export type AnthropicEffort = 'low' | 'medium' | 'high' | 'max';
export interface AnthropicOptions extends StreamOptions {
    /**
     * Enable extended thinking.
     * For Opus 4.6 and Sonnet 4.6: uses adaptive thinking (model decides when/how much to think).
     * For older models: uses budget-based thinking with thinkingBudgetTokens.
     */
    thinkingEnabled?: boolean;
    /**
     * Token budget for extended thinking (older models only).
     * Ignored for Opus 4.6 and Sonnet 4.6, which use adaptive thinking.
     */
    thinkingBudgetTokens?: number;
    /**
     * Effort level for adaptive thinking (Opus 4.6 and Sonnet 4.6).
     * Controls how much thinking Claude allocates:
     * - "max": Always thinks with no constraints (Opus 4.6 only)
     * - "high": Always thinks, deep reasoning (default)
     * - "medium": Moderate thinking, may skip for simple queries
     * - "low": Minimal thinking, skips for simple tasks
     * Ignored for older models.
     */
    effort?: AnthropicEffort;
    interleavedThinking?: boolean;
    toolChoice?: 'auto' | 'any' | 'none' | {
        type: 'tool';
        name: string;
    };
}
export declare const streamAnthropic: StreamFunction<'anthropic-messages', AnthropicOptions>;
export declare const streamSimpleAnthropic: StreamFunction<'anthropic-messages', SimpleStreamOptions>;
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