Individual skill

writing-lean-proofs

Writes and reviews structured Lean 4 proofs and designs Lean libraries following Mathlib conventions. Use when proving theorems in Lean, formalizing mathematics or specifications in Lean 4, defining new types or definitions in a Lean library, reviewing Lean proofs for readability and maintainability, refactoring long tactic proofs into lemmas, filling in sorry placeholders in a Lean development, setting up CI or linters for a Lean project, diagnosing slow proofs or maxHeartbeats timeouts, or writing custom tactics, macros, or linters.

plugins/writing-lean-proofs/skills/writing-lean-proofs/SKILL.md

Source commit e4dd0bb5b15535f7c5a0834187dffba6ac37e4ff

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

Yes

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No

Skill scan complete

No

Observed behavior

Network or broad shell

Last checked

Nov 9, 2026

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