import type { OrchestrationInput } from "./types.js";
/**
 * Flat event loop durable session orchestration (v1.0.50).
 *
 * Replaces the nested while loops of v1.0.31 with a single
 * drain → decide → process loop backed by a KV FIFO work buffer.
 *
 * v1.0.50 added:
 *   - idempotent dehydrate guard for sessions already marked dehydrated
 *   - stale child-update digest suppression for untracked sub-agents
 *
 * v1.0.49 changes the sub-agent lifecycle:
 *   - non-system sub-agents no longer auto-terminate when their final
 *     assistant message arrives. Instead they fall through to the same
 *     idle/dehydrate path as a top-level session and stay alive waiting
 *     for `message_agent` follow-ups or explicit `complete_agent` /
 *     `cancel_agent` / `delete_agent` from the parent.
 *   - the same-name dedup guard on `spawn_agent(agent_name=...)` is
 *     removed. The orchestration still enforces the global
 *     `MAX_SUB_AGENTS` cap and per-spawn nesting limit.
 *
 * v1.0.48 added:
 *   - interactive FIFO dispatch priority so user prompts/answers do not wait behind fired timers
 *
 * v1.0.47 added:
 *   - clientMessageIds threaded from message → FIFO → runTurn → durable user.message
 *   - consecutive prompt FIFO items batched into one Copilot turn
 *   - cancel_pending_message tombstone tracking that drops cancelled prompts
 *
 * @internal
 */
export declare const CURRENT_ORCHESTRATION_VERSION = "1.0.79";
export declare function durableSessionOrchestration_1_0_50(ctx: any, input: OrchestrationInput): Generator<any, string, any>;
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