# Lessons Learned from Fixing Flaky Tests with Claude

DevFeed: [Lessons Learned from Fixing Flaky Tests with Claude](<https://devfeed.tech/articles/lessons-learned-from-fixing-flaky-tests-with-claude-29069.md>)

Original publisher: [Read original article](<https://henrikwarne.com/2026/08/15/lessons-learned-from-fixing-flaky-tests-with-claude/>)

Author: Henrik Warne

Published: 2026-08-15T15:50:33Z

Content type: article

Language: en

Sources: [Henrik Warne](<https://devfeed.tech/sources/henrik-warne.md>)

Topics: [Claude](<https://devfeed.tech/topics/claude.md>), [Testing](<https://devfeed.tech/topics/testing.md>)

Tags: [claude](<https://devfeed.tech/tags/claude.md>), [flaky-tests](<https://devfeed.tech/tags/flaky-tests.md>), [integration](<https://devfeed.tech/tags/integration.md>), [learning](<https://devfeed.tech/tags/learning.md>), [llm](<https://devfeed.tech/tags/llm.md>), [net-9](<https://devfeed.tech/tags/net-9.md>), [parallel](<https://devfeed.tech/tags/parallel.md>), [programming](<https://devfeed.tech/tags/programming.md>), [running](<https://devfeed.tech/tags/running.md>), [testing](<https://devfeed.tech/tags/testing.md>), [tests](<https://devfeed.tech/tags/tests.md>)

## AI overview

The article describes lessons learned from using Claude to diagnose and fix flaky integration tests after parallelizing a test suite. It explains that blindly accepting plausible fixes was ineffective, while understanding and reviewing each change was important.

## Source excerpt

We recently sped up our integration tests by a factor of ten by running many of them in parallel. There were several flaky tests in the new test suite. Claude was really useful in getting rid of almost all flakyness, ... Continue reading ->