/**
 * Claude Code CLI backend plugin.
 * 通过 `claude` 命令驱动 agent，stream-json 模式。
 */
import { CliAgentBackend, type BaseCliSession, type ParsedOutput } from "../agent/cli-base.js";
import type { SessionConfig, ExecHooks } from "../agent/types.js";
interface ClaudeSession extends BaseCliSession {
    permissionMode: string;
    /** 推理强度（--effort 透传） */
    reasoningEffort?: string;
}
export interface ClaudeBackendOptions {
    permissionMode?: string;
}
export default class ClaudeBackend extends CliAgentBackend<ClaudeSession> {
    private permissionMode;
    constructor(options?: ClaudeBackendOptions);
    command(): string;
    needsStableUserPrefix(): boolean;
    buildSession(config: SessionConfig): ClaudeSession;
    buildInput(session: ClaudeSession, message: string): {
        args: string[];
        stdin?: string;
    };
    parseOutput(stdout: string, session: ClaudeSession): ParsedOutput;
    protected loadSessionTranscript(session: ClaudeSession): Promise<{
        sources: {
            path: string;
            role: string;
        }[];
        backend: string;
        agentSessionId: string;
        events: Iterable<import("../agent/types.js").TranscriptEvent> | AsyncIterable<import("../agent/types.js").TranscriptEvent>;
    }>;
    /**
     * 增量扫描 Claude Code session JSONL，提取主 agent 信息。
     * model 从 system/init 事件获取，usage 从最后一条 assistant message 获取。
     */
    private scanJsonl;
    /** 构造 Claude Code session JSONL 文件路径（需与 Claude Code 的 project key 算法一致） */
    private getJsonlPath;
    protected getExecHooks(session: ClaudeSession): ExecHooks;
    protected probeSessionFileMtime(session: ClaudeSession): number | null;
    protected agentEnv(): Record<string, string>;
}
export {};