/**
 * Mirror OpenCode's OpenAI stripping (v2 provider/openai.ts context/compaction;
 * v1 openai/codex.ts chat.params) and v1 github-copilot/copilot.ts for GPT.
 * These backends can reject max_output_tokens, so Corvus must not re-add it.
 * Callers read host model IDs before mutation; true bypasses the default,
 * false retains it, and no configuration toggle disables this rule.
 */
export declare function hostOmitsOutputLimit({ providerID, modelID }: {
    providerID: string;
    modelID: string;
}): boolean;
/**
 * Leave a defined hook-visible output budget unchanged; otherwise use the smaller
 * of the model output limit and 32,000, falling back to 32,000 without a limit.
 *
 * Invariant: callers read the current value and available model limit before
 * mutating the request. A defined current value disables this default on either
 * host, even above 32,000; an absent limit uses the fallback, not a proven model
 * ceiling. Known limitation: v1 normally seeds the current value before its hook;
 * v2 exposes neither the resolved limit nor route/model generation defaults, so
 * the fallback can replace a larger hidden default.
 */
export declare function resolveOutputBudget({ current, modelLimit }: {
    current?: number;
    modelLimit?: number;
}): number | undefined;
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