Code transformation tools for repairing, simplifying, and extracting Lean proofs
Scanned 9/12/2026
Install to Claude Code
Skills Directorynpx -y skills add project-numina/numina-lean-agent --skill code-transform --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: code-transform
description: "Code transformation tools for repairing, simplifying, and extracting Lean proofs"
---
# Code Transform Tools
Tools for automatically transforming and improving Lean proof code. All scripts use `python skills/cli/axle.py <subcommand>`.
## Available Tools
| Tool | Purpose | When to use |
|------|---------|-------------|
| **axle repair-proofs** | Auto-fix broken proofs using configurable repair strategies | When a proof fails and you want automated repair before manual editing |
| **axle simplify-theorems** | Clean up proofs by removing unused tactics and bindings | As a final cleanup step after a proof is verified |
| **axle sorry2lemma** | Lift sorry placeholders into standalone named lemmas | When a proof has multiple sorry sub-goals you want to tackle independently |
| **axle extract-theorems** | Split a Lean file into structured per-theorem records | For analysis, dataset construction, or understanding file structure |
For full parameters and examples, read the corresponding `reference-<tool>.md` file in this directory.
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