import { type SpawnSessionEvent } from '../../services/spawn-session.js';
/**
 * Bridges the shared spawn event bus (`onSessionEvent` — already reused by the
 * GH-535 durable background-command lane) to the chat process manager, so a
 * background subagent's completion/failure automatically injects a follow-up
 * turn into the web-console chat session that delegated it, instead of only
 * flipping the UI notification badge the frontend already renders.
 *
 * Idempotent per process: only the first call subscribes. Guards against
 * `createBridgeApp` being invoked more than once in the same process (e.g. a
 * test harness building multiple bridge apps) from wiring the same wake twice.
 */
export declare function registerChatAutoResume(): () => void;
/**
 * Composes the synthetic user-role message injected as the resumed turn.
 * `maxOutputBytes` reuses context-builder.ts's model-scaled injection budget
 * (getContextBudgetForModel) instead of inlining the subagent's raw output
 * (already capped at 32KB by spawn-adapters.ts's MAX_OUTPUT_CHARS) unconditionally —
 * a 32KB block would still meaningfully eat into the resumed turn's own budget.
 */
export declare function composeWakeMessage(event: SpawnSessionEvent, maxOutputBytes: number): string;