import type { SystemModelMessage } from 'ai';
import type { Instructions } from '../types/agentConfig.js';
import type { FlowState, ReplyNode, CollectNode } from '../types/flow.js';
import type { ResolvedNode } from '../types/channel.js';
import type { AnyTool } from '../types/effectTool.js';
export declare function resolveInstructions(instructions: Instructions, state: FlowState): string;
export declare function buildNodePrompt(node: ReplyNode, state: FlowState): string;
/**
 * Compose the agent base layer into a stable system-message array.
 * Returned as `SystemModelMessage[]` so a cache breakpoint can annotate the
 * last message — a single string cannot carry per-message providerOptions.
 */
/**
 * Tells the model it may issue several tool calls in one response.
 *
 * The runtime already runs parallel-safe calls from a single response concurrently and
 * fires ONE follow-up completion for the batch (`dispatchModelToolCalls`). Nothing told
 * the model to batch, so it emitted one call per response and that machinery never fired
 * — a turn was measured spending ~10,400 ms on six sequential tool round-trips at ~1.7 s
 * each, while tool execution across the whole turn was 15 ms.
 *
 * Round-trip COUNT dominates turn latency, and it is the model that decides the count.
 * Wording follows Eve's, including the independence caveat: batching calls that depend on
 * each other is a correctness bug, not a speed-up.
 *
 * Lives in the stable head so it sits inside the cache breakpoint rather than being
 * re-billed every turn.
 */
export declare const PARALLEL_TOOL_INSTRUCTION: string;
export declare function composeSystem(base: Instructions | undefined, nodeSystem: string, state: FlowState, skillPrompt?: string, workingMemoryPrompt?: string): SystemModelMessage[];
/** Flatten system messages to a string for callers that still need one (e.g. structured decide). */
export declare function systemMessagesText(messages: readonly SystemModelMessage[]): string;
export declare function resolveReplyNode(node: ReplyNode, state: FlowState, options?: {
    freeConversation?: boolean;
}): ResolvedNode;
export declare function resolveCollectExtractionNode(collectNode: CollectNode, missing: string[], state: FlowState, submitTool: AnyTool): ResolvedNode;