lesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentlesson 2 of 5 · what a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agentwhat a harness is — the four layers under every coding agent
A "harness" wraps the model API with at least: input prep, model call, output parsing, AND tool dispatch (the model can change the world, not just describe it). Which TWO of the systems above are harnesses?