/** Tool-round phase of runInternal (plan 059). */
import type { AgentRunRef, GuardrailRecord, LoopContext, NestedRunRef, PendingDecision, ResumeNestedRun, StickyDecision, ToolCallContent, ToolRegistry, ToolResult, Usage } from "../../contracts.js";
import { AgentDelegationSuspendedError } from "../../contracts.js";
import type { RoundContext, SessionHost } from "./types.js";
export declare function matchNestedSticky(session: SessionHost, decision: PendingDecision): StickyDecision | undefined;
export declare function matchStickyDecision(session: SessionHost, call: ToolCallContent, registry: ToolRegistry): StickyDecision | undefined;
export declare function buildPendingDecision(session: SessionHost, call: ToolCallContent, approvalId: string, registry: ToolRegistry, runId: string, metadata: Readonly<Record<string, unknown>>, signal: AbortSignal, ask?: GuardrailRecord): PendingDecision;
export declare function applyNestedRun(session: SessionHost, input: {
    ref: AgentRunRef;
    toolCall: ToolCallContent;
    path: readonly string[];
    pending: readonly PendingDecision[];
    hook?: ResumeNestedRun;
}): Promise<{
    toolResult: ToolResult;
} | {
    entry: NestedRunRef;
    pending: PendingDecision[];
}>;
export declare function suspendGatedRound(ctx: RoundContext): Promise<void>;
export declare function suspendNested(ctx: RoundContext, nested: {
    entry: NestedRunRef;
    toolCall: ToolCallContent;
    pending: PendingDecision[];
}): Promise<never>;
export declare function replayToolResult(ctx: RoundContext, result: ToolResult): Promise<void>;
export declare function handleNestedSignal(ctx: RoundContext, error: AgentDelegationSuspendedError): Promise<void>;
export declare function bindChargeToolRound(ctx: RoundContext): LoopContext["chargeToolRound"];
export declare function bindDispatchToolCall(ctx: RoundContext): LoopContext["dispatchToolCall"];
export declare function replayDurableNestedAndPending(ctx: RoundContext): Promise<void>;
export declare function runLoopUntilSettled(ctx: RoundContext): Promise<Usage | undefined>;