Checks the target's spec: its type must be LLM (absent means LLM), and it must produce every output the Decision pipeline has, with the same name and the same target (mode, and field for a field target).
What is wrong, worded to follow the pipeline's name, or null.
Checks the target's spec: its type must be LLM (absent means LLM), and it must produce every output the Decision pipeline has, with the same name and the same target (mode, and field for a field target).