Code Transform Tools

SkillAI & models

Code transformation tools for repairing, simplifying, and extracting Lean proofs

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Code Transform Tools skill

What this skill tells your AI

The instructions your AI receives, as published by project-numina/numina-lean-agent in skills/code-transform/SKILL.md and read by ahel’s review.

Tools for automatically transforming and improving Lean proof code. All scripts use python skills/cli/axle.py <subcommand>.

Available Tools

ToolPurposeWhen to use
axle repair-proofsAuto-fix broken proofs using configurable repair strategiesWhen a proof fails and you want automated repair before manual editing
axle simplify-theoremsClean up proofs by removing unused tactics and bindingsAs a final cleanup step after a proof is verified
axle sorry2lemmaLift sorry placeholders into standalone named lemmasWhen a proof has multiple sorry sub-goals you want to tackle independently
axle extract-theoremsSplit a Lean file into structured per-theorem recordsFor analysis, dataset construction, or understanding file structure

For full parameters and examples, read the corresponding reference-<tool>.md file in this directory.

Signals

GitHub stars
273
Forks
34
Last commit
Jul 2026
Advanced
Catalog kind
skill
Gateway key
code-transform
Source
github.com/project-numina/numina-lean-agent