Show HN: Elf – A CLI Helper for Advent of Code https://ift.tt/esJVDN7

Show HN: Elf – A CLI Helper for Advent of Code I built a CLI tool called elf to streamline Advent of Code workflows. It removes a lot of the repetitive steps around fetching inputs, submitting answers safely, and checking private leaderboards. The tool focuses on: - Input fetching with caching (no repeated downloads, works offline) - Safe answer submissions with guardrails to prevent duplicate or invalid guesses - Private leaderboard viewer (table or JSON) - Status calendar and guess history viewer - Optional Python API for scripting or automation It’s built with Typer, httpx, Pydantic, and Rich, and aims to be clean, predictable, and easy to extend. Repo: https://ift.tt/wRk34EV PyPI: https://ift.tt/rDZa2jT Feedback and questions are welcome. https://ift.tt/wRk34EV December 2, 2025 at 12:35AM