Numina Lean Agent — Theorem Proving Toolkit

What it does

Numina Lean Agent provides a suite of skills for working with Lean 4 theorem proving workflows. It exposes search tools for finding lemmas, verification tools to check and disprove proofs, code-transform utilities to repair or simplify proofs and extract theorems, and LLM-powered helper tools for informal proof generation and discussion.

When to use it

• When searching for relevant lemmas or premises during proof development.
• When you need to verify, check, or attempt to disprove a Lean proof.
• When refactoring, repairing, or simplifying theorem code.
• When you want LLM-assisted informal proofs, explanations, or code-golf-style challenges for Lean code.

What's included

• Scripts: repository provides structured skill directories (search, verification, code-transform, llm) — individual SKILL.md files per subskill.
• References: subfolders likely contain implementation tools and CLIs for interacting with Lean and external search providers.
• Instructions: the top-level SKILL.md indexes subskills and lists required API environment variables (GEMINI_API_KEY, OPENAI_API_KEY, ANTHROPIC_API_KEY, AXLE_API_KEY).

Compatible agents

• Agents with code execution and LLM integration (OpenAI, Anthropic, Gemini-capable agents), plus tooling for Lean integration.