starkware-libs/sequencer
Mar 2025 – Dec 2025
4 Months active
Languages Used
RustPython
Technical Skills
Cairo VMRustSmart ContractsStarknet OSCode FormattingData Availability
Nimrod Weiss
PROFILE
Nimrod Weiss
Contributed to the starkware-libs/sequencer repository by building and enhancing core features for StarkNet OS, focusing on data integrity, availability, and test reliability. Developed a load class hint hash verification mechanism to ensure tamper-evident loading of compiled classes, and implemented data availability page management with optimized on-chain pagination. Improved test infrastructure by patching the test manager for accurate class hash validation, reducing flaky test outcomes. Addressed critical bugs such as correcting the SpongeHashBuiltin import path and enhanced VM observability by exposing bytecode segment information. Leveraged Python, Rust, and Cairo VM, emphasizing robust smart contract development and maintainable testing practices.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
7Total
Bugs
3
Commits
7
Features
3
Lines of code
246
Activity Months4
Your Network
121 peopleWork History
December 2025
1 Commits
Dec 1, 2025December 2025 summary for starkware-libs/sequencer: Delivered a targeted reliability improvement to Starknet OS flow tests by patching the test manager to correctly gather and validate executed class hashes from execution outputs. This change reduces flaky test runs, strengthens result integrity, and accelerates CI feedback for OS flow changes. The work enhances overall test coverage confidence and supports safer deployments of OS flow features.
1 Commits
Dec 1, 2025December 2025 summary for starkware-libs/sequencer: Delivered a targeted reliability improvement to Starknet OS flow tests by patching the test manager to correctly gather and validate executed class hashes from execution outputs. This change reduces flaky test runs, strengthens result integrity, and accelerates CI feedback for OS flow changes. The work enhances overall test coverage confidence and supports safer deployments of OS flow features.
December 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for starkware-libs/sequencer focusing on stability and VM observability improvements in StarkNet OS. Delivered a critical bug fix to correct the SpongeHashBuiltin import path, ensuring the proper sponge hash implementation is used, and introduced a new bytecode segment info exposure to support VM introspection and segment lifecycle visibility.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for starkware-libs/sequencer focusing on stability and VM observability improvements in StarkNet OS. Delivered a critical bug fix to correct the SpongeHashBuiltin import path, ensuring the proper sponge hash implementation is used, and introduced a new bytecode segment info exposure to support VM introspection and segment lifecycle visibility.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for starkware-libs/sequencer. Focused on delivering data availability tooling in StarkNet OS and improving test quality to reduce risk and speed up iterations.
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for starkware-libs/sequencer. Focused on delivering data availability tooling in StarkNet OS and improving test quality to reduce risk and speed up iterations.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 (starkware-libs/sequencer): Delivered data-integrity enhancement for StarkNet OS by implementing Load Class Hint Hash Verification. Introduced a load_class hint with a new verification step that compares the computed class hash against the expected OS input hash, ensuring integrity when loading compiled classes. No major bugs reported this month. This work improves reliability and security of the StarkNet OS class-loading process and provides clearer traceability from commits to functionality.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 (starkware-libs/sequencer): Delivered data-integrity enhancement for StarkNet OS by implementing Load Class Hint Hash Verification. Introduced a load_class hint with a new verification step that compares the computed class hash against the expected OS input hash, ensuring integrity when loading compiled classes. No major bugs reported this month. This work improves reliability and security of the StarkNet OS class-loading process and provides clearer traceability from commits to functionality.
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Quality Metrics
Correctness90.0%
Maintainability88.6%
Architecture88.6%
Performance85.8%
AI Usage25.8%
Skills & Technologies
Programming Languages
PythonRust
Technical Skills
CairoCairo VMCode FormattingData AvailabilityRustSmart ContractsStarkNetStarknetStarknet OSTestingsoftware developmenttesting
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