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Justin Chang

PROFILE

Justin Chang

Worked across the docker/mcp-registry, docker/mcp-gateway, and modelcontextprotocol/go-sdk repositories to deliver features and fixes that improved automation, interoperability, and deployment reliability. Developed remote MCP server integrations, enhanced auto-merge workflows, and implemented catalog import as OCI artifacts using Go, Bash, and YAML. Addressed HTTP/2 streaming issues in the Go SDK to ensure compatibility with reverse proxies and added regression tests for reliability. Improved CLI usability by exposing OAuth management commands and streamlined deployment with a new MCP Registry Publisher CLI and CI/CD automation. Maintained technical documentation and collaborated across repositories to align configuration, security, and developer experience improvements.

Overall Statistics

Feature vs Bugs

69%Features

Repository Contributions

25Total
Bugs
5
Commits
25
Features
11
Lines of code
102,338
Activity Months5

Work History

May 2026

2 Commits • 1 Features

May 1, 2026

This month delivered two high-impact enhancements: a robust HTTP/2-compatible SSE header flush fix in the Go SDK to ensure reliable reverse-proxy behavior and a new MCP Registry Publisher CLI with accompanying CI/CD automation to streamline MCP deployments. The changes improve reliability, reduce support incidents, and accelerate onboarding and deployment workflows for customers using HTTP/2 proxies and MCP registries.

April 2026

2 Commits • 2 Features

Apr 1, 2026

April 2026 monthly summary focusing on key deliverables across two repos within the Docker MCP Toolkit. Delivered two high-impact features with clear business value, improved CLI usability, and kept technical docs in sync via automation. No major bug fixes documented for the period; focus was on UX enhancements and extensibility.

March 2026

8 Commits • 3 Features

Mar 1, 2026

March 2026 month-in-review for docker/mcp-registry and docker/mcp-gateway focused on reliability, security, and ecosystem enablement. Highlights include auto-merge workflow improvements in mcp-registry (switch to direct squash merges, added a 5-attempt retry with 10s backoff, and security hardening) and server‑side updates to track main for automatic updates (addressing known CVEs). The DuckDuckGo server UI was cleaned up for clarity and Docker Hub constraints. In docker/mcp-gateway, community registry support was added to the CLI and cross-registry authentication was fixed to improve pulls from non-Docker Hub registries. Overall, these changes strengthen CI reliability, security posture, and cross-registry usability while expanding ecosystem capabilities.

February 2026

5 Commits • 3 Features

Feb 1, 2026

February 2026 monthly summary focusing on delivering business value and technical achievements across docker/mcp-registry and docker/mcp-gateway. Key features delivered: - Remote MCP server support added for Granola and Miro (granola-remote, miro-remote), enabling access to meeting notes, conversations, diagrams, and documents in collaborative workspaces. Includes server configuration, MCP compliance, and basic docs. - OCI artifact-based catalogs: import of community registry catalogs as OCI artifacts, with support for catalog creation, push/pull, and opt-in publishing. Major bugs fixed: - Fixed a bug in BuildConfigSchema to omit the 'required' field when no config variables are required, preventing JSON null and load issues for community catalogs. Overall impact and accomplishments: - Expanded MCP ecosystem capabilities by enabling remote context for tasks, improved automation for ticket creation and summaries, and more reliable catalog workflows with community registry support. - Strengthened developer experience with integrated tooling (MCP Toolkit crush client) and catalog distribution via OCI artifacts, improving consistency across environments. Technologies/skills demonstrated: - MCP API compliance for remote servers and toolkit - Go JSON marshaling nuances and robust schema handling - Docker MCP Toolkit integration and crush client workflow - OCI artifacts, catalog publishing, and CI/testing practices

January 2026

8 Commits • 2 Features

Jan 1, 2026

January 2026 performance summary focusing on automation, code health, and interoperability across mcp-registry and mcp-gateway. Delivered business-value features and targeted bug fixes, with concrete validation and test improvements.

Activity

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Quality Metrics

Correctness97.6%
Maintainability90.4%
Architecture93.6%
Performance90.4%
AI Usage33.6%

Skills & Technologies

Programming Languages

BashGoJSONMarkdownShellYAMLbashyaml

Technical Skills

AI IntegrationAPI developmentAPI integrationCI/CDCLI DevelopmentConfiguration ManagementContainerizationContinuous IntegrationDatabase ManagementDevOpsDockerDocumentation GenerationGitGitHub ActionsGo

Repositories Contributed To

4 repos

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

docker/mcp-registry

Jan 2026 Apr 2026
4 Months active

Languages Used

BashShellYAMLMarkdownbashyaml

Technical Skills

Configuration ManagementContinuous IntegrationDatabase ManagementDevOpsGitHub ActionsScripting

docker/mcp-gateway

Jan 2026 Apr 2026
4 Months active

Languages Used

GoJSONYAML

Technical Skills

API developmentGo programmingbackend developmenttestingAPI integrationDocker

modelcontextprotocol/go-sdk

May 2026 May 2026
1 Month active

Languages Used

Go

Technical Skills

HTTP/2backend developmentstreaming protocolstesting

docker/mcp-community-registry

May 2026 May 2026
1 Month active

Languages Used

GoJSONShellYAML

Technical Skills

CI/CDDevOpsDockerGitHub ActionsGo