33: Ship Happens (When Agents Code)

About this episode

The episode discusses Spotify's use of AI coding agents to enhance developer productivity and manage code migrations.

At Spotify, we're doubling down on background coding agents. The goal is to scale code migrations and boost developer productivity beyond our existing automation system. Built on top of Fleet Management and supercharged by Claude Code, these agents make their own code changes and pull requests. What could possibly go wrong? Engineers Jo Kelly-Fenton, Aleksander Mitic, and Max Charas join host Dave Zolotusky to unpack how we’ve merged thousands of AI-generated PRs while keeping codebases consistent and secure. They’ll dig into what it takes to let agents touch production code at scale: sandboxing and security, handling context windows, wiring into CI, and building verification loops that still trust humans more than agents. You’ll hear real-world failure modes (like agents “fixing” tests by deleting them), how using an “LLM as a judge” flags sketchy diffs before they land, and how engineers and PMs are now triggering agents directly from Slack for migrations, documentation fixes, and feature flag rollouts. It’s a candid look at what increasing reliance on AI-based tooling means for the future of engineering — and for safely shipping code at speed. Learn more about our journey with…

People in this episode

Host: Dave Zolotusky

Guests: Jo Kelly-Fenton, Aleksander Mitic, Max Charas

Topics covered

• AI coding agents
• developer productivity
• code migrations
• automation
• software engineering
• security
• production code

Keywords

• background coding agents
• AI-generated PRs
• sandboxing
• context windows
• CI integration
• verification loops
• engineering challenges
• Slack integration

Mentioned in this episode

Organizations: Spotify

Products: Claude Code

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