Rubber Duck Thursdays - Let's build
Chris catches up on several weeks of GitHub releases and then returns to the turn-based game MCP server project to fix a dependency upgrade issue.
Topics Covered
- GitHub Changelog Roundup — Managing Copilot coding agent tasks in VS Code, new OIDC token claims for GitHub Actions, GPT-5.1 and Codex models, configuring the coding agent as a bypass actor for rulesets, MCP registry and allowlist controls in VS Code Stable, plan mode and isolated sub-agents in public preview, Gemini 3 Pro, and CodeQL updates.
- MCP Server for Games — Revisiting the tic-tac-toe MCP server project and demonstrating how tool calls allow natural language game interaction with a backend API.
- Fixing Dependency Upgrades with Copilot — Using agent mode across multiple models (Codex, Gemini 3 Pro) to diagnose and resolve a type check failure caused by a Dependabot SDK version bump.
Related Content
Rubber Duck Thursdays - Build for the love of code
GitHub
In this episode, we recap the latest GitHub changelog including GitHub Spark entering public preview and coding agent support for instructions.md files. We introduce the 'Build for the love of code' hackathon, prototype a rubber duck debugging app with GitHub Spark, and build an MCP server from scratch using TypeScript while exploring tools, prompts, and resources.
Rubber Duck Thursdays - Let's build
GitHubIn this stream, Chris catches up on several weeks of GitHub updates including the remote MCP server preview and Copilot coding agent for business users. The live coding session demonstrates adding internationalization to the Copilot Airways app using Copilot coding agent, custom VS Code chat modes for planning, and agent mode in Xcode for iOS development.
Rubber Duck Thursdays - Time to build!
GitHubIn this live stream, we explore building a 3D tic-tac-toe visualization using Three.js and Copilot coding agent, demo MCP elicitation for gathering game preferences, and discuss the importance of context engineering when working with AI tools. We also cover GitHub changelog highlights including path-scoped custom instructions for Copilot code review and agents.md support.