import type { SessionBridge, SessionArtifact } from "./SessionBridge.js";
import type { FeatureRegistry, Feature } from "./FeatureRegistry.js";
import type { WorkspaceCheckpointer } from "./WorkspaceCheckpointer.js";
export interface ContextResetConfig {
    bridge: SessionBridge;
    registry: FeatureRegistry;
    checkpointer?: WorkspaceCheckpointer<Record<string, unknown>>;
    /** Token threshold at which a reset should be triggered (0-1). Default: 0.80 */
    autoResetThreshold?: number;
    /** If true, commits workspace state before reset */
    commitBeforeReset?: boolean;
    /**
     * Custom orientation steps for the resume prompt.
     * Replaces the default "first actions" list. If omitted, a generic
     * set of orientation steps is used (no workspace-specific commands).
     */
    orientationSteps?: string[];
}
export interface ResetResult {
    newSessionId: string;
    artifact: SessionArtifact;
    contextSummary: string;
}
export declare class ContextReset {
    private readonly config;
    private readonly autoResetThreshold;
    constructor(config: ContextResetConfig);
    /**
     * Check if a reset should be triggered given current token usage.
     */
    shouldReset(currentTokens: number, maxTokens: number): boolean;
    /**
     * Execute the reset:
     * 1. Optionally commit workspace state
     * 2. Close current session (writes artifact)
     * 3. Build context summary for the new agent
     */
    execute(currentProgress: SessionArtifact["progress"], handoffNotes: string): Promise<ResetResult>;
    /**
     * Returns a system prompt fragment that orients a fresh agent.
     * Suitable for injection as the first message in a new context.
     *
     * All artifact-sourced text is sanitized before injection to prevent
     * prompt injection from stored content.
     */
    static buildResumePrompt(artifact: SessionArtifact, nextFeature: Feature | null, orientationSteps?: string[]): string;
}
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