cryspen/hax
Feb 2026 – Feb 2026
1 Month active
Languages Used
LeanMarkdownRustShellYAML
Technical Skills
Code RefactoringCode refactoringCompiler DesignContinuous IntegrationDockerGitHub Actions
Juan C
PROFILE
Juan C
Juan Conrod contributed to the cryspen/hax repository by engineering backend transformations and quality improvements across Rust and Lean codebases. He refactored resugaring flows to remove BinOp handling, simplifying match branches and introducing explicit logic for known operators. His work included cleaning up PhantomData parameters, expanding test coverage, and updating tooling and documentation to streamline developer workflows. Juan enhanced formal verification by adding Lean lemmas for integer inequalities and improved the representation of inequality symbols in core models. Leveraging skills in Rust, Lean, and continuous integration, he delivered features and bug fixes that increased maintainability, correctness, and overall backend reliability.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
23Total
Bugs
2
Commits
23
Features
7
Lines of code
203,643
Activity Months1
Work History
February 2026
23 Commits • 7 Features
Feb 1, 2026February 2026 monthly summary for cryspen/hax focusing on engineering work, backend transformations, and quality improvements across Rust and Lean backends. Delivered cross-backend resugaring cleanup, robust test coverage, and tooling/documentation updates that enhance maintainability, correctness, and developer velocity.
23 Commits • 7 Features
Feb 1, 2026February 2026 monthly summary for cryspen/hax focusing on engineering work, backend transformations, and quality improvements across Rust and Lean backends. Delivered cross-backend resugaring cleanup, robust test coverage, and tooling/documentation updates that enhance maintainability, correctness, and developer velocity.
February 2026
Activity
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Quality Metrics
Correctness95.6%
Maintainability91.2%
Architecture91.2%
Performance91.2%
AI Usage22.6%
Skills & Technologies
Programming Languages
LeanMarkdownRustShellYAML
Technical Skills
Code RefactoringCode refactoringCompiler DesignContinuous IntegrationDockerGitHub ActionsLeanLean programmingRustRust programmingSoftware DevelopmentSystems Programmingbackend developmentdocumentationformal verification
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