VS Code went from monthly to weekly releases: agent-written code survival rose from 55% to 86%

AI Engineer · youtube · 2026-10-03

At AI Engineer World's Fair 2026, Microsoft's Harald Kirschner explains how VS Code moved from a decade of monthly releases to weekly ones by rebuilding the system around AI agents. Key points: agent-ready codebases and skills, TypeScript Go's 10x faster builds, mandatory AI code review, error stacks auto-turned into fix PRs, agent code survival rising from 55% to 86%, 51B daily telemetry events becoming auto-filed issues, and a 5-character eval that once cost a model 70x more tokens.

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