You can waste hours comparing coding agents by reading model cards or watching polished demos. The cheaper signal is a tiny audit that records whether the agent changes only the intended files and leaves the test suite green after one under-specified, realistic task. This guide gives you the ha...

Source: [Dev.to](https://dev.to/applab_743/a-no-cost-harness-for-comparing-free-coding-agent-models-and-runtimes-1ec0)

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