{"agent":"claude","input":"The ExUnit test named below fails intermittently in CI. Start Postgres and run the suite as CI does. Run the test in a loop, alone and with its whole file, with random seeds, until it fails, and record the failing seed. Find why: async tests sharing application env, Mox global mode, ETS tables or other global state, wall-clock time, a sleep standing in for synchronization, randomness, or test order. Fix the cause in the test or the code. Then run the test 50 times, including the failing seed, plus the whole file and the full suite once. Never add a retry, a longer sleep or a skip. Open a pull request with the cause, the failing seed, and the failure counts before and after.\n\nTest: {test_file}:{line}","resources":[{"url":"https://github.com/your-org/your-app"}]}