Halden, a subscription business with 40,000 customers, had a billing migration on its roadmap for a year. Jonas Verhey, their CTO, gave Swarm one goal on a Tuesday morning.
The run
1,024 agents across 9 waves.
41 files changed, 2 new tests.
One key blocked by Guard before it reached the branch.
What Jonas did
He read the pull request, asked Reviewer why it dropped one approach, and merged after lunch. The old webhooks kept working until March, as asked.
