/**
 * Codex command - manage ChatGPT Codex AGENTS.md rules.
 *
 * Codex reads `AGENTS.md` from the project root (merging up the tree), so unlike
 * Cursor's dedicated .mdc file the rules live in a file the user may also own.
 * We therefore manage only a delimited block, leaving the rest of AGENTS.md
 * untouched.
 *
 * Usage:
 *   quickback codex install   # Add/update the Quickback block in ./AGENTS.md
 *   quickback codex update    # Alias for install (refresh the block)
 *   quickback codex remove    # Strip the Quickback block
 *   quickback codex status    # Check installation status
 */
export declare function codex(args: string[]): Promise<void>;
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