Welcome to GitHub Copilot Day: the future of agentic engineering

Kyle Daigle opens GitHub Copilot Day by outlining how software development is moving from manual coding toward agentic orchestration, and introduces GitHub’s HydraFusion work on optimizing model selection to reduce cost while improving quality. He also previews the shared runtime, the Copilot app, and the Copilot SDK for building custom workflows.

Overview

This kickoff session frames GitHub Copilot Day around a shift in how teams build software: from writing code line-by-line to orchestrating agentic workflows.

What’s changing in software development

• The talk positions “agents” as a change in the development workflow, moving effort from manual implementation toward higher-level orchestration.
• It notes a reported increase in commit volume since April, used as a signal that developer workflows are changing.

Project HydraFusion (research preview)

• Introduces Project HydraFusion as work focused on optimizing AI model selection.
• Claims cost reduction of 67% while improving code quality on TerminalBench 2.1.
• Mentions a comparison point of “quality up, cost down” versus Opus 5.

Shared runtime, Copilot app, and Copilot SDK

• Highlights a shared runtime concept.
• Introduces the GitHub Copilot app.
• Describes the Copilot SDK as the way developers can build custom agentic workflows.

Links

• Learn more about HydraFusion: https://gh.io/ghcpdayhydrafusion
• Get hands-on with the Copilot app: https://gh.io/ghcpdaycopilotapp
• Copilot app resources: https://gh.io/ghcpdaycopilotappresources
• Install the GitHub Copilot CLI: https://gh.io/ghcpdaycopilotcli
• GitHub Copilot Dev Days: https://gh.io/join-dev-days