/**
 * Claude Code SDK adapter.
 *
 * Translates between Tisyn protocol messages and the
 * `@anthropic-ai/claude-agent-sdk` TypeScript API. Uses
 * `unstable_v2_createSession()` to keep a single subprocess alive
 * across multiple `plan` calls within a session.
 *
 * Unlike the ACP adapter this does not spawn a subprocess directly —
 * the SDK manages Claude Code subprocess lifecycle internally.
 */
import type { LocalAgentBinding } from "@tisyn/transport";
export interface SdkAdapterConfig {
    /** Model to use (e.g. "claude-sonnet-4-6"). Defaults to "claude-sonnet-4-6". */
    model?: string;
    /** Permission mode (e.g. "default", "plan"). Defaults to SDK default. */
    permissionMode?: string;
}
/**
 * Create a `LocalAgentBinding` backed by the Claude Agent SDK.
 *
 * The binding handles all five Tisyn operations:
 * - `newSession` — creates an SDKSession via `unstable_v2_createSession()`,
 *   returns an adapter-internal handle (`cc-1`, `cc-2`, …)
 * - `plan` — looks up the session by handle, calls `send()` + `stream()`
 * - `closeSession` — calls `session.close()`, removes handle from map
 * - `fork` — calls `forkSession()` with the real SDK session ID
 * - `openFork` — calls `unstable_v2_resumeSession()`, returns new handle
 */
export declare function createSdkBinding(config?: SdkAdapterConfig): LocalAgentBinding;
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