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Gabriel Zaccak

PROFILE

Gabriel Zaccak

Worked on the Future-House/ldp repository to enhance backend reliability and cost management for LLM operations. Addressed a streaming cost tracking issue by implementing a Python-based guard that ensures cost callbacks trigger only on the final chunk containing usage, preventing duplicate or premature billing events. Developed a feature for cached token tracking, updating LLM usage cost calculations to improve efficiency and provide clearer budgeting and token accounting. Leveraged skills in API integration, backend development, and data processing to deliver solutions that support scalable, cost-aware deployment. The work focused on robust code refactoring and thorough testing to ensure accurate, maintainable results.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

2Total
Bugs
1
Commits
2
Features
1
Lines of code
5,083
Activity Months2

Work History

November 2025

1 Commits • 1 Features

Nov 1, 2025

Monthly summary for 2025-11: Future-House/ldp — LLM Usage Token Caching and Cost Optimization. Implemented cached token tracking and updated LLM usage cost calculation to improve efficiency, cost visibility, and budgeting for model operations. Changes align with scalable, cost-aware LLM usage and provide clearer token accounting.

October 2025

1 Commits

Oct 1, 2025

In October 2025, I worked on the Future-House/ldp repository and delivered a critical bug fix to streaming cost tracking. The cost calculation previously fired for multiple streaming chunks, causing duplicate or premature cost events. I implemented a guard that triggers cost callbacks only on the final chunk that contains usage, by checking for the presence of 'usage' on the response object. This prevented duplicate cost calculations and ensured accurate billing signals. The change is tracked in commit 8d4aab9ec1711a8c6296b59fe0bf1d1ff046d0b4 with message 'fix: cost callbacks fire only on final chunk with usage (#340)'.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage40.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

API IntegrationAPI developmentBackend DevelopmentCode RefactoringTestingbackend developmentdata processingmachine learning

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

Future-House/ldp

Oct 2025 Nov 2025
2 Months active

Languages Used

Python

Technical Skills

API IntegrationBackend DevelopmentCode RefactoringTestingAPI developmentbackend development