Introduction Hi, I'm miruky. A timeout parser turns 250ms into 250.0 seconds. The intended value is 0.25 . The function fits in three lines. Completing the change means specifying accepted input, executing tests, handling failed repairs, and confirming which source the reviewer approved. The same bug gives us a concrete way to compare prompt, context, harness, loop, and graph engineering. Each stage changes what we ask the model to do, what information it receives, or how the surr...