/**
 * kosha-discovery — Claude generation parsing and per-generation behaviour.
 *
 * One source of truth for "which Claude is this and what does it accept",
 * shared by the catalog feature inference (`model-features.ts`) and the
 * proxy's wire translator (`wire-anthropic.ts`). Keeping it in one module
 * means an OpenRouter-style `anthropic/claude-sonnet-4.6`, a Bedrock-style
 * `anthropic.claude-opus-4-8-v1:0`, and the bare `claude-opus-4-8` all
 * classify identically everywhere.
 * @module
 */
export interface ClaudeGeneration {
    family: "opus" | "sonnet" | "haiku" | "fable" | "mythos";
    major: number;
    minor: number;
}
/**
 * Parse the generation out of a family-first Claude ID such as
 * `claude-opus-4-8`, `claude-sonnet-5`, `claude-fable-5-1`, a dated
 * `claude-haiku-4-5-20251001`, or a prefixed / dotted variant. Legacy
 * version-first IDs (`claude-3-5-sonnet-…`, `claude-2.1`) and non-Claude IDs
 * return `undefined`.
 */
export declare function parseClaudeGeneration(modelId: string): ClaudeGeneration | undefined;
/** How a Claude model treats `temperature` / `top_p`. */
export type SamplingSupport = "both" | "one" | "none";
/**
 * Sampling parameters were removed on Opus 4.7 and every later model (Opus
 * 4.8, Opus 5, Sonnet 5, Fable, Mythos): sending them returns a 400. Every
 * Claude 4.x model accepts at most one of `temperature` / `top_p` (sending
 * both is a 400). Claude 3.x and unrecognized IDs accept both.
 */
export declare function claudeSamplingSupport(modelId: string): SamplingSupport;
/** Anthropic's accepted `temperature` range; OpenAI's is 0..2. */
export declare const CLAUDE_TEMPERATURE_MAX = 1;
export type ClaudeEffort = "low" | "medium" | "high" | "xhigh" | "max";
/**
 * Effort levels a generation accepts under `output_config.effort`; empty when
 * effort is unsupported. `xhigh` arrived with Opus 4.7; `max` with 4.6; in
 * the 4.5 generation only Opus 4.5 had an effort parameter at all (Sonnet
 * 4.5 and Haiku 4.5 reject it).
 */
export declare function claudeEffortLadder(modelId: string): readonly ClaudeEffort[];
/**
 * Last-assistant-turn prefill returns a 400 on Opus 4.6 / Sonnet 4.6 and every
 * later model. Older generations still accept a trailing assistant message.
 */
export declare function claudeSupportsPrefill(modelId: string): boolean;
/**
 * Native JSON-schema structured outputs (`output_config.format`) shipped with
 * the 4.5 generation (Sonnet 4.5, Haiku 4.5, Opus 4.1) and every model since.
 */
export declare function claudeSupportsNativeJsonSchema(modelId: string): boolean;
/**
 * Claude Fable 5.1 and Claude Mythos 5.1 return a 400 for forced tool use
 * (`tool_choice` `any` / `tool`); everything else still honours it.
 */
export declare function claudeSupportsForcedToolChoice(modelId: string): boolean;
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