import type { TSchema } from "typebox";
/**
 * Narrow structural view of the host's model compat config. packages/ai must stay
 * config-agnostic, so only tool-schema-relevant fields are modeled here; the host's
 * ModelCompatConfig remains structurally assignable.
 */
export type ToolSchemaModelCompat = {
    toolSchemaProfile?: string;
    unsupportedToolSchemaKeywords?: string[];
    omitEmptyArrayItems?: boolean;
};
/** Extracts the compat record whether callers pass a model (`{ compat }`) or the compat itself. */
export declare function extractToolSchemaModelCompat(modelOrCompat: {
    compat?: unknown;
} | ToolSchemaModelCompat | undefined): ToolSchemaModelCompat | undefined;
/** JSON Schema keywords this model/provider rejects in tool schemas. */
export declare function resolveUnsupportedToolSchemaKeywords(modelOrCompat: {
    compat?: unknown;
} | ToolSchemaModelCompat | undefined): ReadonlySet<string>;
/** Whether empty `items: {}` on array schemas must be omitted for this model/provider. */
export declare function shouldOmitEmptyArrayItems(modelOrCompat: {
    compat?: unknown;
} | ToolSchemaModelCompat | undefined): boolean;
export type ToolParameterSchemaOptions = {
    modelProvider?: string;
    modelId?: string;
    modelCompat?: ToolSchemaModelCompat;
};
/** Return a provider-compatible JSON schema for a model-facing tool. */
export declare function normalizeToolParameterSchema(schema: unknown, options?: ToolParameterSchemaOptions): TSchema;