lean-build

Name: lean-build
Availability: InStock
Author: r-irbe

Automate Lean 4 project builds and validation with Lake workflows.

2|Updated May 26, 2026

Search Tags:#workflow #build #tooling #lean #ci #lean4 #lake

Ready to run

npx skills add https://github.com/r-irbe/proof-skills --skill lean-build-r-irbe

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: lean-build
Source: https://github.com/r-irbe/proof-skills/tree/main/skills/_overrides/lean-build
Command: npx skills add https://github.com/r-irbe/proof-skills --skill lean-build-r-irbe

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Building and validating Lean 4 projects with Lake across modules, with deterministic workflows and CI-ready checks.

Core Features & Use Cases

Targeted module builds using lake build <Module> and environment validation with lake env lean.
Cache management and artifact cleanup via lake clean and lake exe cache get to maintain CI parity.
Reusable workflow for CI preparation and reproducible local validation across Lake-managed projects.

Quick Start

Validate your Lean environment with lake env lean, then perform a targeted build with lake build <Module> to verify changes and CI readiness.

Frequently Asked Questions about lean-build

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I automate Lake builds for Lean 4 projects in CI?▼

Automate Lake builds for Lean 4 projects by applying targeted module builds, cache management, and environment validation to create reproducible, CI-ready workflows. It validates changes using lake env lean and lake build commands to ensure CI parity.

What is the best way to validate Lean 4 changes before pushing to CI?▼

Validating Lean 4 changes before CI involves running lake env lean for environment checks and lake build <Module> for targeted compilation. This provides CI-quality validation locally to catch errors early and maintain reproducibility.

Can I use lake exe cache get to manage build artifacts in Mathlib-style projects?▼

Yes, you can use lake exe cache get to manage build artifacts in Mathlib-style projects. It fetches cached build outputs to speed up compilation, while lake clean removes artifacts to maintain CI parity and a reproducible environment.

Does this workflow support targeted module builds in Lake-managed repositories?▼

Yes, this workflow supports targeted module builds in Lake-managed repositories using lake build <Module>. It allows you to compile specific modules rather than the entire project for faster, more efficient local validation.

Why does my Lean 4 CI build fail locally but pass in the pipeline?▼

A Lean 4 CI build failing locally but passing in the pipeline often indicates stale cache or environment differences. Running lake clean and lake exe cache get ensures local CI parity and reproducible validation.