export declare const INPUT_PLACEHOLDER = "{input}";
/** The placeholder's old name, refused with a pointer rather than silently
 *  passed to the agent as literal text. */
export declare const OLD_TASK_PLACEHOLDER = "{task}";
/** One message, used by both the early check (resolveEvalTarget) and the
 *  invariant guard (substituteInput), so the two cannot drift. */
export declare const MISSING_INPUT_PLACEHOLDER_ERROR = "--agent-cmd must contain {input} \u2014 the command never receives the test's input without it";
export declare const OLD_TASK_PLACEHOLDER_ERROR = "--agent-cmd uses {task}, which was renamed: write {input} where the test's input should go";
export declare function tokenizeCommand(command: string): string[];
/** Replace every {input} occurrence with the test's input. Objects
 *  serialize as JSON. With an input, at least one
 *  occurrence is required — a command that never receives the input is the
 *  silent-drop bug in new clothing. A test with no input leaves the command
 *  as written (the preflight already refused a placeholder in that case). */
export declare function substituteInput(tokens: string[], input: string | Record<string, any> | undefined): string[];