SXSW Tip #2 - Use a Tuned Harness

A short tip from SXSW 2026 design and tech report advocating for using pre-built AI agent harnesses like GitHub Copilot CLI and Claude Code instead of building from scratch. The analogy of a 'tuned harness' describes how modern CLI-based agentic tools wrap AI models with tool calling and optimized prompting built in. The GitHub Copilot SDK is highlighted as a way to embed a tuned harness directly into your own applications.