input-output-hk/mithril
Jan 2026 – Mar 2026
3 Months active
Languages Used
RustMarkdownYAML
Technical Skills
Code RefactoringRustRust programmingSoftware Developmentbackend developmentdatabase management
leepl37
PROFILE
Leepl37
Contributed to the input-output-hk/mithril repository by developing and refining backend features focused on Cardano v2 proof routes, verification workflows, and aggregator reliability. Applied Rust and YAML to implement robust API endpoints, expand test coverage, and enhance error handling, with particular attention to cryptography and asynchronous programming. Improved code maintainability through dependency management, code refactoring, and documentation updates using Markdown and Prettier. Addressed stability in end-to-end testing by tuning polling intervals and strengthening input validation, resulting in more reliable CI runs. The work emphasized reproducible builds, clear API documentation, and safer production rollouts, supporting both developer experience and system reliability.
Overall Statistics
Feature vs Bugs
73%Features
Repository Contributions
35Total
Bugs
6
Commits
35
Features
16
Lines of code
2,646
Activity Months3
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Filip StoyanovMember
curiecryptMember
Hamza JeljeliMember
Jean-Philippe RaynaudMember
Work History
March 2026
2 Commits
Mar 1, 2026For 2026-03, focused on stabilizing test reliability and strengthening input validation in Mithril. Delivered two key fixes: 1) Stake distribution end-to-end test stability by increasing the polling interval from 2s to 3s, reducing flaky runs; 2) Versioning and input validation coverage for SingleSignature::verify, including a version bump to 0.9.22 and addition of negative tests. These changes improved CI reliability and robustness of input handling. Commit references provide traceability: 942a73af2100c9f3a28358ab45e19c5734664644 and 9b64cc977bacce520b79e0632fb69b3b3a3cfe46, with changelog update in the latter.
2 Commits
Mar 1, 2026For 2026-03, focused on stabilizing test reliability and strengthening input validation in Mithril. Delivered two key fixes: 1) Stake distribution end-to-end test stability by increasing the polling interval from 2s to 3s, reducing flaky runs; 2) Versioning and input validation coverage for SingleSignature::verify, including a version bump to 0.9.22 and addition of negative tests. These changes improved CI reliability and robustness of input handling. Commit references provide traceability: 942a73af2100c9f3a28358ab45e19c5734664644 and 9b64cc977bacce520b79e0632fb69b3b3a3cfe46, with changelog update in the latter.
March 2026
February 2026
21 Commits • 15 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for input-output-hk/mithril: Focused on expanding test coverage, shipping Cardano v2 proof routes, and consolidating the aggregator to reduce risk and improve reliability for v2 routes. Implemented negative tests for STM single-signature, fixed merkle tree build in STM tests, and addressed feedback from review. Added v2 proof routes for Cardano blocks/transactions, metrics, and OpenAPI updates; fixed OpenAPI example to use 64-character block hash. Refactored aggregator to unify prover max hashes config, consolidated hash validators into ProverHashValidator, added v2 proof route error-path coverage, reused transaction proof messages for v2 block responses, and introduced a temporary transaction prover for the v2 block route. Minor formatting and documentation work included: aligning repository formatting with upstream, formatting mithril-aggregator docs with Prettier, running cargo fmt, and restoring version-maintained docs with added doc comments. These changes collectively improve API readiness, testing reliability, and developer experience, setting the stage for safer production rollout of Cardano v2 features.
February 2026
21 Commits • 15 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for input-output-hk/mithril: Focused on expanding test coverage, shipping Cardano v2 proof routes, and consolidating the aggregator to reduce risk and improve reliability for v2 routes. Implemented negative tests for STM single-signature, fixed merkle tree build in STM tests, and addressed feedback from review. Added v2 proof routes for Cardano blocks/transactions, metrics, and OpenAPI updates; fixed OpenAPI example to use 64-character block hash. Refactored aggregator to unify prover max hashes config, consolidated hash validators into ProverHashValidator, added v2 proof route error-path coverage, reused transaction proof messages for v2 block responses, and introduced a temporary transaction prover for the v2 block route. Minor formatting and documentation work included: aligning repository formatting with upstream, formatting mithril-aggregator docs with Prettier, running cargo fmt, and restoring version-maintained docs with added doc comments. These changes collectively improve API readiness, testing reliability, and developer experience, setting the stage for safer production rollout of Cardano v2 features.
January 2026
12 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for input-output-hk/mithril focusing on stability, reliability, and maintainability of verification workflows and build processes.
12 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for input-output-hk/mithril focusing on stability, reliability, and maintainability of verification workflows and build processes.
January 2026
Activity
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Quality Metrics
Correctness96.6%
Maintainability93.8%
Architecture93.8%
Performance94.8%
AI Usage21.8%
Skills & Technologies
Programming Languages
MarkdownRustYAML
Technical Skills
API DocumentationAPI designAPI developmentAPI testingCardanoCode RefactoringOpenAPI SpecificationRustRust programmingSoftware Developmentasynchronous programmingbackend developmentcryptographydata structuresdatabase management
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