/**
 * Shared primitives for the Codex app-server JSON-RPC protocol.
 *
 * The app-server protocol is upstream-defined; Supen consumes it from two
 * sites (the bridge transport in `http/codex-app-server-bridge.ts` and the
 * driver in `agent-sdk/drivers/codex-app-server-driver.ts`). Keep the method
 * sets and param extractors here so both sites agree on what a terminal turn
 * event looks like, which field carries the thread id, etc. Drift between the
 * two sites has previously caused the bridge to release a turn mutex while
 * the driver still considered the turn live (and vice versa).
 */
/** Notification methods that mark a turn as no longer running. */
export declare const TERMINAL_TURN_METHODS: Set<string>;
export declare function isTerminalTurnMethod(method: string | undefined | null): boolean;
/** Coerce an unknown JSON-RPC param value into a record, never throwing. */
export declare function jsonRecord(value: unknown): Record<string, unknown>;
/**
 * Extract a thread id from JSON-RPC params. Accepts both the flat `threadId`
 * shape (used by some app-server methods) and the nested `turn.thread.id` /
 * `thread.id` envelope.
 */
export declare function threadIdOf(params: Record<string, unknown>): string | null;
/**
 * Extract a turn id from JSON-RPC params. Accepts both the flat `turnId`
 * shape and the nested `turn.id` envelope.
 */
export declare function turnIdOf(params: Record<string, unknown>): string | null;
/** Extract the workspace cwd from JSON-RPC params, if present. */
export declare function workspaceOf(params: Record<string, unknown>): string | null;
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