Rubber Duck Thursdays - Let's build

Rubber Duck Thursdays - Let's build

2025-07-03

In this stream, Chris returns from vacation to catch up on weeks of GitHub updates and demonstrates adding internationalization to apps using Copilot coding agent, custom VS Code chat modes, and agent mode in Xcode.

Topics Covered

  • GitHub Changelog Review — Updates including model evaluations CLI for GitHub Models, remote GitHub MCP server in public preview, Copilot coding agent now available for business users, GitHub Models pay-as-you-go billing, Claude Sonnet 4 and Opus 4 GA, CodeQL updates for Go and Swift, Actions Runner Controller release, and Copilot code review with custom instructions support
  • Custom Chat Modes in VS Code — Creating a custom planning mode in VS Code Insiders to generate implementation plans and create GitHub issues, integrating the GitHub MCP server as a tool within the chat mode
  • Remote GitHub MCP Server — Setting up and authenticating with the new remote GitHub MCP server, eliminating the need for local Docker containers and personal access tokens via OAuth
  • Copilot Coding Agent for Internationalization — Assigning a GitHub issue to Copilot to add English, French, and Spanish language support to the Copilot Airways Next.js web app, reviewing the AI-generated pull request
  • Xcode Agent Mode — Demonstrating agent mode in Xcode to add internationalization to a Swift iOS version of the Copilot Airways app with a language selector
  • Issue Creation with Copilot — Using Copilot on github.com to draft well-structured GitHub issues from natural language descriptions

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