/**
 * Typed bindings for v3 host-executor inputs.
 *
 * Host nodes cannot receive the goal worker's file-oriented `inputs.json` and
 * ask an LLM to interpret it: the host must materialize one exact provider
 * payload before approval.  This module resolves the deliberately small
 * binding language without doing any filesystem or provider I/O.
 */
export type V3HostBindingRef = {
    kind: 'params';
    path: string[];
} | {
    kind: 'context';
    path: string[];
} | {
    kind: 'result';
    nodeId: string;
    path: string[];
};
export interface V3HostBindingContext {
    params: Readonly<Record<string, unknown>>;
    context: Readonly<Record<string, string>>;
    loadResult(nodeId: string): Promise<unknown>;
}
export declare class V3HostBindingError extends Error {
    constructor(message: string);
}
export declare function composeV3HostGatePrompt(authoredPrompt: string, preview: string): string;
export declare function splitV3HostGatePrompt(prompt: string): {
    authoredPrompt: string;
    preview?: string;
};
export declare function parseV3HostBindingRef(ref: string): V3HostBindingRef;
/** Collect every ref and reject malformed `${...}` / `$ref` shapes early. */
export declare function collectV3HostBindingRefs(template: unknown): V3HostBindingRef[];
/** Resolve one host template into a plain JSON value. */
export declare function resolveV3HostInputTemplate(template: unknown, ctx: V3HostBindingContext): Promise<unknown>;
/** A bounded, redacted preview safe to append to a gate prompt. */
export declare function renderV3HostInputPreview(executor: string, input: unknown, inputHash: string): string;
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