microsoft/json-schemas
Jan 2025 – Feb 2026
12 Months active
Languages Used
JSONYAML
Technical Skills
Schema DevelopmentJSON SchemaBackend DevelopmentCode RefactoringCode StyleJSON Schema Validation
Tomiwa Muyiwa
PROFILE
Tomiwa Muyiwa
Dolumuyiwa worked extensively on the microsoft/json-schemas repository, delivering over a dozen schema-driven features and reliability improvements for Microsoft Teams and Microsoft 365 integrations. Over twelve months, he overhauled schema definitions, introduced localization and accessibility enhancements, and implemented robust validation and versioning strategies using JSON and YAML. His work included refining data modeling, automating release processes with GitHub Actions, and strengthening security through improved URL handling and agent type definitions. By focusing on backward compatibility, code quality, and maintainability, Dolumuyiwa enabled faster feature iterations, reduced integration risk, and improved developer experience for downstream consumers relying on schema-driven workflows.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
60Total
Bugs
7
Commits
60
Features
20
Lines of code
26,061
Activity Months12
Your Network
4476 peopleSame Organization
@microsoft.com4432
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Work History
February 2026
4 Commits • 2 Features
Feb 1, 2026February 2026: Delivered substantive schema improvements for the Microsoft Teams extension in the microsoft/json-schemas repo. Key changes include localization enhancements, new context menu and custom function configuration options, tighter URL handling via secureHttpUrl, and refined agent type definitions. Completed schema versioning cleanup by removing the m365DevPreview version to align with GA releases and reduce confusion. These updates improve developer experience, security, and maintainability, enabling faster and safer Teams integrations.
4 Commits • 2 Features
Feb 1, 2026February 2026: Delivered substantive schema improvements for the Microsoft Teams extension in the microsoft/json-schemas repo. Key changes include localization enhancements, new context menu and custom function configuration options, tighter URL handling via secureHttpUrl, and refined agent type definitions. Completed schema versioning cleanup by removing the m365DevPreview version to align with GA releases and reduce confusion. These updates improve developer experience, security, and maintainability, enabling faster and safer Teams integrations.
February 2026
January 2026
3 Commits • 1 Features
Jan 1, 20262026-01 Monthly summary focused on delivering a robust Microsoft Teams integration schema in microsoft/json-schemas, with validation enhancements and improved data integrity. Key outcomes include a schema overhaul introducing agentic user templates, localization support, response rendering, and a refined app manifest structure to strengthen extensibility and integration capabilities. The schema was updated to remove the deprecated 'tier2' enum value to align with supported channel features, and new URL validation properties were added alongside tightened constraints to improve data reliability across Teams-related manifests and configurations.
January 2026
3 Commits • 1 Features
Jan 1, 20262026-01 Monthly summary focused on delivering a robust Microsoft Teams integration schema in microsoft/json-schemas, with validation enhancements and improved data integrity. Key outcomes include a schema overhaul introducing agentic user templates, localization support, response rendering, and a refined app manifest structure to strengthen extensibility and integration capabilities. The schema was updated to remove the deprecated 'tier2' enum value to align with supported channel features, and new URL validation properties were added alongside tightened constraints to improve data reliability across Teams-related manifests and configurations.
December 2025
2 Commits • 1 Features
Dec 1, 2025Month: 2025-12 — microsoft/json-schemas: Delivered Schema Enhancements including HTTP URL support and a keytip accessibility property. No major bugs fixed this month. Overall impact: enables easier integration with HTTP-based resources and improves accessibility for schema-driven UIs, accelerating adoption and time-to-value. Technologies demonstrated: JSON Schema design, HTTP URL handling, accessibility considerations, and Git-based traceability with two commits.
2 Commits • 1 Features
Dec 1, 2025Month: 2025-12 — microsoft/json-schemas: Delivered Schema Enhancements including HTTP URL support and a keytip accessibility property. No major bugs fixed this month. Overall impact: enables easier integration with HTTP-based resources and improves accessibility for schema-driven UIs, accelerating adoption and time-to-value. Technologies demonstrated: JSON Schema design, HTTP URL handling, accessibility considerations, and Git-based traceability with two commits.
December 2025
November 2025
3 Commits • 2 Features
Nov 1, 2025Performance summary for 2025-11 focused on schema delivery and validation enhancements in the microsoft/json-schemas repository. Key work enables cross-ecosystem Teams extension, improved localization capabilities, and robust governance via a new Agentic User Template schema.
November 2025
3 Commits • 2 Features
Nov 1, 2025Performance summary for 2025-11 focused on schema delivery and validation enhancements in the microsoft/json-schemas repository. Key work enables cross-ecosystem Teams extension, improved localization capabilities, and robust governance via a new Agentic User Template schema.
October 2025
2 Commits • 2 Features
Oct 1, 20252025-10 Monthly Summary for microsoft/json-schemas: Delivered two key features in the Microsoft Teams schemas, focusing on channel features and localization/rendering templates. No major bugs fixed this period. Commit references are included for traceability.
2 Commits • 2 Features
Oct 1, 20252025-10 Monthly Summary for microsoft/json-schemas: Delivered two key features in the Microsoft Teams schemas, focusing on channel features and localization/rendering templates. No major bugs fixed this period. Commit references are included for traceability.
October 2025
July 2025
10 Commits • 2 Features
Jul 1, 2025July 2025: Delivered a major overhaul of the Core JSON Schema System with localization readiness and standardized registration schemas, plus DevPreview metadata updates. No customer-facing bugs were fixed this month; focus was on architecture, localization readiness, and schema governance to accelerate localization cycles and reduce onboarding friction. Also improved repository hygiene and scaffolding to support future work.
July 2025
10 Commits • 2 Features
Jul 1, 2025July 2025: Delivered a major overhaul of the Core JSON Schema System with localization readiness and standardized registration schemas, plus DevPreview metadata updates. No customer-facing bugs were fixed this month; focus was on architecture, localization readiness, and schema governance to accelerate localization cycles and reduce onboarding friction. Also improved repository hygiene and scaffolding to support future work.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary focused on stabilizing XLL custom functions within the microsoft/json-schemas repository. Delivered a reliability fix for XLL custom functions to ensure correct operation and predictable execution in the XLL environment. The fix reduces runtime errors due to previous logic or syntax issues and improves developer and end-user experience when integrating with Excel add-ins.
1 Commits
Jun 1, 2025June 2025 monthly summary focused on stabilizing XLL custom functions within the microsoft/json-schemas repository. Delivered a reliability fix for XLL custom functions to ensure correct operation and predictable execution in the XLL environment. The fix reduces runtime errors due to previous logic or syntax issues and improves developer and end-user experience when integrating with Excel add-ins.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for microsoft/json-schemas: Focused on GA release readiness. Implemented schema validation updates and updated/added schema definitions to meet GA standards, enabling a smoother production rollout and reducing risk for downstream consumers.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for microsoft/json-schemas: Focused on GA release readiness. Implemented schema validation updates and updated/added schema definitions to meet GA standards, enabling a smoother production rollout and reducing risk for downstream consumers.
April 2025
14 Commits • 4 Features
Apr 1, 2025April 2025 for microsoft/json-schemas focused on stabilizing release processes, modernizing schemas, and cleaning code while reducing UI maintenance. Key outcomes include release tagging automation for the April PP cycle, a major JSON Schemas overhaul with improved structure and validation rules, and targeted code quality cleanups to improve readability and maintainability. UI cleanup removed the localization context menu to simplify the interface. ActivityIcon description improvements were implemented to clarify usage, and unintended changes were reverted to restore prior behavior, reducing risk. These efforts collectively improved release traceability, validation accuracy, and code health, enabling faster, safer iterations.
14 Commits • 4 Features
Apr 1, 2025April 2025 for microsoft/json-schemas focused on stabilizing release processes, modernizing schemas, and cleaning code while reducing UI maintenance. Key outcomes include release tagging automation for the April PP cycle, a major JSON Schemas overhaul with improved structure and validation rules, and targeted code quality cleanups to improve readability and maintainability. UI cleanup removed the localization context menu to simplify the interface. ActivityIcon description improvements were implemented to clarify usage, and unintended changes were reverted to restore prior behavior, reducing risk. These efforts collectively improved release traceability, validation accuracy, and code health, enabling faster, safer iterations.
April 2025
March 2025
16 Commits • 3 Features
Mar 1, 2025March 2025 — microsoft/json-schemas: Reliability and feature work focused on parsing correctness, background task stability, and stable referencing. Key outcomes include bug fixes that restore correct string handling, stability/performance gains in background loading, new functionality in PP, and stable referencing through IDs across configurable tabs and compose extensions. Key features delivered: - PP-related changes enabling new functionality in PP area. Commits: 5c5f2981141100059cf926356f867de39f10923a. - Add IDs to configurable tabs, compose extensions, and their JSON schemas to enable stable referencing and management. Commits: cb00968c51afe46f66da0839accf295b8c7f4098; 531d898b3a4931cbd5e6909f43287088ae150f3a. - Code quality improvements and release housekeeping (linting, nitpicks, and release-tag related housekeeping). Commits: 54b868b193fd93a1931d2a9cc9157d00bf5d5764; 2660c79d4e018eb3e7948f799e6bfe17400233f6; 467dc401a6da9daf94870df3d127e72bc772226e; 281dfe1cefcfed6bc86d3d8b983db7799bba5bf5; a787fce23e0f04134a93aa161af3ba04448f67c7. Major bugs fixed: - Escape character handling regression fixes: restored correct parsing/interpretation of strings. Commits: b95f66228561e83d16889720127f789e3fb82c71; 793471e99d262f5aed9440000410d59d9dc75b0c. - Background loading stability and performance improvements: address issues with background loading tasks for better stability and performance. Commits: c134c2ea94fff9e846d5e3b49e72b928bb31c0d2; c8ddca98367c63e0edc8d1ace8b575c693dc8322. Overall impact and accomplishments: - Improved parsing reliability and correctness for string handling, reducing user-visible parsing errors. - Enhanced UI responsiveness and stability through faster and more reliable background loading. - Established stable referencing and management via IDs across tabs, compose extensions, and JSON schemas, reducing maintenance overhead. - Strengthened release discipline and code quality, contributing to smoother monthly releases and easier future enhancements. Technologies/skills demonstrated: - TypeScript/JSON Schema handling, performance profiling, and asynchronous task optimization. - Code quality practices (linting, nitpicks) and release tagging. - Commit traceability and clear change logging for auditability and collaboration.
March 2025
16 Commits • 3 Features
Mar 1, 2025March 2025 — microsoft/json-schemas: Reliability and feature work focused on parsing correctness, background task stability, and stable referencing. Key outcomes include bug fixes that restore correct string handling, stability/performance gains in background loading, new functionality in PP, and stable referencing through IDs across configurable tabs and compose extensions. Key features delivered: - PP-related changes enabling new functionality in PP area. Commits: 5c5f2981141100059cf926356f867de39f10923a. - Add IDs to configurable tabs, compose extensions, and their JSON schemas to enable stable referencing and management. Commits: cb00968c51afe46f66da0839accf295b8c7f4098; 531d898b3a4931cbd5e6909f43287088ae150f3a. - Code quality improvements and release housekeeping (linting, nitpicks, and release-tag related housekeeping). Commits: 54b868b193fd93a1931d2a9cc9157d00bf5d5764; 2660c79d4e018eb3e7948f799e6bfe17400233f6; 467dc401a6da9daf94870df3d127e72bc772226e; 281dfe1cefcfed6bc86d3d8b983db7799bba5bf5; a787fce23e0f04134a93aa161af3ba04448f67c7. Major bugs fixed: - Escape character handling regression fixes: restored correct parsing/interpretation of strings. Commits: b95f66228561e83d16889720127f789e3fb82c71; 793471e99d262f5aed9440000410d59d9dc75b0c. - Background loading stability and performance improvements: address issues with background loading tasks for better stability and performance. Commits: c134c2ea94fff9e846d5e3b49e72b928bb31c0d2; c8ddca98367c63e0edc8d1ace8b575c693dc8322. Overall impact and accomplishments: - Improved parsing reliability and correctness for string handling, reducing user-visible parsing errors. - Enhanced UI responsiveness and stability through faster and more reliable background loading. - Established stable referencing and management via IDs across tabs, compose extensions, and JSON schemas, reducing maintenance overhead. - Strengthened release discipline and code quality, contributing to smoother monthly releases and easier future enhancements. Technologies/skills demonstrated: - TypeScript/JSON Schema handling, performance profiling, and asynchronous task optimization. - Code quality practices (linting, nitpicks) and release tagging. - Commit traceability and clear change logging for auditability and collaboration.
February 2025
2 Commits • 1 Features
Feb 1, 2025Month: 2025-02 — Focused on delivering a high-impact GA release for the microsoft/json-schemas repository, featuring broad schema updates and foundational referencing improvements. The work strengthens downstream consumption, reduces integration risk, and sets the stage for future schema evolution.
2 Commits • 1 Features
Feb 1, 2025Month: 2025-02 — Focused on delivering a high-impact GA release for the microsoft/json-schemas repository, featuring broad schema updates and foundational referencing improvements. The work strengthens downstream consumption, reduces integration risk, and sets the stage for future schema evolution.
February 2025
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025: Delivered the General Availability release of Teams v1.20 in the microsoft/json-schemas project, enabling a major upgrade path and expanded capabilities. The effort focused on release readiness, backward compatibility, and clear traceability of changes. There were no user-facing bugs fixed this month; a no-op commit was recorded to preserve commit hygiene. The release strengthens platform stability and positions the product for faster iterations and broader adoption. Core technologies demonstrated include Git-based release engineering, schema/version management, and cross-repo coordination.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025: Delivered the General Availability release of Teams v1.20 in the microsoft/json-schemas project, enabling a major upgrade path and expanded capabilities. The effort focused on release readiness, backward compatibility, and clear traceability of changes. There were no user-facing bugs fixed this month; a no-op commit was recorded to preserve commit hygiene. The release strengthens platform stability and positions the product for faster iterations and broader adoption. Core technologies demonstrated include Git-based release engineering, schema/version management, and cross-repo coordination.
Activity
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Quality Metrics
Correctness75.4%
Maintainability75.4%
Architecture73.6%
Performance72.8%
AI Usage29.6%
Skills & Technologies
Programming Languages
JSONYAML
Technical Skills
API developmentBackend DevelopmentCI/CDCode FormattingCode RefactoringCode RefinementCode StyleData ModelingData ValidationFeature RemovalGitHub ActionsJSONJSON SchemaJSON Schema ValidationJSON validation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline