Lean 4 language server with per-file Lake project-root detection (lake serve, or lean --server for standalone files), elan toolchain discovery, multi-project and worktree routing, and bounded memory (Lean workers are closed when idle or past a cap). Bundles the lean-goal CLI for proof goals, candidate tactics and Mathlib-wide lemma search.

GitHub stars
521

Install

/plugin install lean4-lsp@claude-code-lsps

Run it inside Claude Code after adding the marketplace with /plugin marketplace add Piebald-AI/claude-code-lsps.

Contents

Discovered from source

Skills 1

Sponsors

Details

Marketplace
Piebald-AI/claude-code-lsps
Source
plugins/lean4-lsp
Author
Yingte Xu
Category
development

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