import type { ChatSessionHostState } from "./chat-session-host-state.ts";
import type { ChatSessionSubmitMode } from "./chat-session-host-types.ts";
import type { ChatTranscriptEntryLike } from "./chat-transcript.js";
export declare function isChatSessionStreaming<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): boolean;
export declare function isChatSessionBashRunning<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): boolean;
export declare function incrementOptimisticUserSignature<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, signature: string): void;
export declare function decrementOptimisticUserSignature<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, signature: string): void;
export declare function startChatSessionWorkingLifecycle<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): void;
export declare function stopChatSessionWorkingLifecycle<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, immediateEventRender?: boolean): void;
/**
 * Begin a Working lifecycle for a prompt this host did not submit itself —
 * currently a workflow-authored `sendUserMessage()` accepted on an idle
 * retained stage. Mirrors the manual submit path so an accepted delivery paints
 * immediately and then hands the same visible period to the agent turn.
 *
 * Returns the lifecycle generation that identifies this delivery. Pass it back
 * to `settleChatSessionPromptLifecycle` so a stale settlement cannot clear a
 * newer turn.
 */
export declare function startChatSessionExternalPromptLifecycle<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): number | undefined;
/**
 * Reopen the Working lifecycle for a delivery that is still active after a
 * temporary overlay ended — a pre-turn compaction clears busy state and the
 * lifecycle even though the accepted delivery has not started its turn yet.
 *
 * Unlike the initial start, this preserves `statusMessage` verbatim, so a
 * compaction error stays visible and keeps outranking ordinary Working.
 */
export declare function reassertChatSessionExternalPromptLifecycle<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): number | undefined;
/**
 * Settle a prompt lifecycle started by this host. A replaced generation means a
 * newer turn owns the indicator, so only its own owner may clear busy state.
 */
export declare function settleChatSessionPromptLifecycle<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, submittedGeneration: number | undefined): void;
export declare function syncChatSessionAnimationTick<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): void;
export declare function clearChatSessionBusyForTerminalWorkflowStage<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): void;
export declare function disposeChatSession<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): void;
export declare function notifyChatSessionWarning<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, message: string): void;
export declare function notifyChatSessionStatus<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, message: string): void;
/**
 * Prompt requires the submitting key's mode; resume accepts it optionally for
 * hosts that preserve submission intent across a pause.
 */
export declare function requiredChatSessionPromptCommand<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>): (text: string, mode: ChatSessionSubmitMode) => Promise<void>;
export declare function requiredChatSessionCommand<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, name: "steer" | "followUp" | "resume"): (text?: string, mode?: ChatSessionSubmitMode) => Promise<void>;
export declare function afterChatSessionEvent<TExtraEntry extends ChatTranscriptEntryLike>(state: ChatSessionHostState<TExtraEntry>, changed: boolean): void;
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