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Sebastien Castiel

PROFILE

Sebastien Castiel

Sebastien contributed to two repositories over a two-month period, focusing on both feature development and bug fixing. In google/adk-docs, he enhanced session management by migrating the update method from POST to PATCH, enabling partial updates and more granular state changes in the API. This approach, implemented using TypeScript and JSON, improved efficiency and reduced payload size for client-server interactions. In mastra-ai/mastra, Sebastien addressed a critical UI stability issue by fixing a tooltip crash in the Playground’s Add Header feature, collaborating with other contributors and following established coding standards. His work demonstrated solid API development and front end skills.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

2Total
Bugs
1
Commits
2
Features
1
Lines of code
68
Activity Months2

Work History

March 2026

1 Commits

Mar 1, 2026

March 2026 — mastra-ai/mastra: Stability and reliability focus in the Playground UI. Delivered a critical bug fix addressing a tooltip crash in the Add Header feature, preventing blank-page errors and improving user experience. No new features shipped; the work reduces support load and accelerates upcoming releases by removing a stability risk. Demonstrates strong UI bug-fix discipline, effective collaboration (co-authored commits), and adherence to issue-tracking and coding standards.

November 2025

1 Commits • 1 Features

Nov 1, 2025

November 2025 focused on delivering scalable session management improvements in google/adk-docs through targeted API refinement. Key feature delivered: Session Management API Partial Updates by migrating the update method from POST to PATCH and updating the request body to support granular state changes. This work reduces payload size, improves update precision, and enhances client/server efficiency.

Activity

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Quality Metrics

Correctness100.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage40.0%

Skills & Technologies

Programming Languages

JSONJavaScriptMarkdownTypeScript

Technical Skills

API DevelopmentDocumentationReactfront end development

Repositories Contributed To

2 repos

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

google/adk-docs

Nov 2025 Nov 2025
1 Month active

Languages Used

JSONMarkdown

Technical Skills

API DevelopmentDocumentation

mastra-ai/mastra

Mar 2026 Mar 2026
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

Reactfront end development