openai/openai-cookbook
Nov 2025 – Mar 2026
3 Months active
Languages Used
MarkdownYAML
Technical Skills
AI-assisted DevelopmentCode ModernizationDocumentationDocumentation ManagementTechnical WritingAI Development
Derrick Choi
PROFILE
Derrick Choi
Derrick Choi contributed to the openai/openai-cookbook repository by developing features that modernize legacy codebases and enhance long-horizon AI-assisted design workflows. He built a Codex CLI Cookbook using Markdown and YAML, enabling phased modernization with repeatable, auditable processes and COBOL integration. Derrick also delivered a GPT-5-Codex demonstration for durable project memory and milestone verification, supporting scalable multi-step design tasks. His work included relocating and restructuring documentation to improve accessibility and maintainability, reinforcing workflow reliability and knowledge retention. Throughout, Derrick applied skills in AI integration, documentation management, and workflow design, producing well-structured, maintainable solutions with clear business value.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
4Total
Bugs
1
Commits
4
Features
3
Lines of code
831
Activity Months3
Your Network
416 peopleSame Organization
@openai.com301
Shared Repositories
115
Work History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 (openai/openai-cookbook): Focused on documentation hygiene and knowledge retention. Relocated Long Horizon Tasks Documentation from the cookbook's examples directory to the developers blog and updated the registry to reflect the change. Shifted long horizon task information to the developers blog to boost accessibility, maintain durable project memory, and improve milestone verification in coding workflows. This work enhances long-term maintainability and cross-team guidance with minimal user impact. No major bugs fixed this month; the work primarily improves documentation structure and discoverability.
1 Commits • 1 Features
Mar 1, 2026March 2026 (openai/openai-cookbook): Focused on documentation hygiene and knowledge retention. Relocated Long Horizon Tasks Documentation from the cookbook's examples directory to the developers blog and updated the registry to reflect the change. Shifted long horizon task information to the developers blog to boost accessibility, maintain durable project memory, and improve milestone verification in coding workflows. This work enhances long-term maintainability and cross-team guidance with minimal user impact. No major bugs fixed this month; the work primarily improves documentation structure and discoverability.
March 2026
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026: Focused on enabling long-horizon task planning and memory in Codex-driven design workflows within the OpenAI Cookbook repository. Delivered a demonstrable GPT-5-Codex Long-Horizon Design Tool Demonstration, along with a comprehensive usage guide and experimental framework to verify durable project memory and milestone verification across multi-step design tasks. This work lays the foundation for scalable AI-assisted design tooling and improves reliability and traceability of multi-phase projects.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026: Focused on enabling long-horizon task planning and memory in Codex-driven design workflows within the OpenAI Cookbook repository. Delivered a demonstrable GPT-5-Codex Long-Horizon Design Tool Demonstration, along with a comprehensive usage guide and experimental framework to verify durable project memory and milestone verification across multi-step design tasks. This work lays the foundation for scalable AI-assisted design tooling and improves reliability and traceability of multi-phase projects.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for openai/openai-cookbook focused on feature delivery and documentation maintenance. Delivered a comprehensive OpenAI Codex CLI Cookbook for Modernizing Legacy Codebases, plus a documentation integrity fix to ensure stable linking across the repository. The work emphasizes business value by enabling faster, auditable modernization workflows with reduced risk, and demonstrates proficiency in AI-assisted tooling, documentation governance, and legacy code modernization. Key commits: feature delivered (#2247) with 4eb96817b6b062d98321c4b22cb55e7e92093920; documentation integrity fix (#2248) with 1ea3d59bfedf0ab7bb6ed4bc8234687333de1277.
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for openai/openai-cookbook focused on feature delivery and documentation maintenance. Delivered a comprehensive OpenAI Codex CLI Cookbook for Modernizing Legacy Codebases, plus a documentation integrity fix to ensure stable linking across the repository. The work emphasizes business value by enabling faster, auditable modernization workflows with reduced risk, and demonstrates proficiency in AI-assisted tooling, documentation governance, and legacy code modernization. Key commits: feature delivered (#2247) with 4eb96817b6b062d98321c4b22cb55e7e92093920; documentation integrity fix (#2248) with 1ea3d59bfedf0ab7bb6ed4bc8234687333de1277.
November 2025
Activity
Loading activity data...
Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance90.0%
AI Usage75.0%
Skills & Technologies
Programming Languages
MarkdownYAML
Technical Skills
AI DevelopmentAI integrationAI-assisted DevelopmentCode ModernizationDocumentationDocumentation ManagementProject ManagementSoftware EngineeringTechnical Writingdocumentationproject managementworkflow design
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline