We now have Kerr’s Law (Interview)
Dave Kerr created hacker laws, and now he finds himself reviewing agent-written code for them. Back on the show after six years, Dave names what he sees limiting teams today: keeping everyone’s mental model in sync with what’s actually been built. Adam declares it Kerr’s Law on the spot. We get into why Dave’s team treats code review as a deliberate slowdown, how Shellwright lets agents bring evidence to a pull request, and what living with bipolar disorder has taught Dave about noticing when the excitement of these tools stops being healthy.
Changelog++ members save 9 minutes on this episode because they made the ads disappear. Join today!
Sponsors:
- Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
- KubeCon + CloudNativeCon – Get a generous discount by using
changelogpod(think Earlybird pricing!). Learn more and register. - WorkOS – WorkOS is building the infrastructure for the AI era. Explore three new product previews: Airlock for secure AI agent permissions, Atlas for deploying AI-built internal apps, and Passport for seamless, passwordless access to work apps. See the announcements, demos, and highlights in the WorkOS init() 2026 recap.
- Fingerprint – Detect threats, AI agents, and bots with device intelligence.
Featuring:
Show Notes:
Kerr’s Law — A team’s ability to scale is limited by its ability to keep a shared mental model in sync with the system it builds.
- Dave Kerr’s website
- Hacker Laws
- Effective Shell
- Ark (Agents at Scale)
- Shellwright
- Tailscale
- Playwright
- asciinema
- k9s
Something missing or broken? PRs welcome!