Migrate 180 microservices to a new framework version with Cursor agents
- Source date:
- Last verified:
- Method:
- How we verify
Evidence: Company case studyA write-up published by the company that makes the agent or uses it.
Outcome
Brex reports that its self-correcting, self-hosted Cursor agents let one engineer migrate 180 microservices from Micronaut 3 to 4 in a month, which it calls a 32x per-capita speedup.
According to Brex:180 microservices migrated in one month
This is the source's own number. We haven't measured it.
Agent
Prompt Recreated prompt
The source did not publish its exact prompt. This one is our reconstruction from what the source describes.
Migrate this service from Micronaut 3 to Micronaut 4: update the build targets and imports, build it, fix every compilation and test failure, and repeat until CI passes.
Source
https://www.brex.com/journal/agent-automations-for-big-migrations
By Sofhia de Souza Gonçalves (Brex) · Published Jul 22, 2026 · Added Oct 15, 2026 · Last verified Oct 15, 2026
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