A configuration report another person can reproduce

Blank worksheet and worked example
Question: __________________________
Runtime version: __________________________
Exact command: __________________________
Synthetic input: __________________________
Expected / observed result: __________________________
Untested conditions: __________________________

Completed example
Question: Which stage rejects the document?
Runtime version: Recorded in fixture-results.json
Exact command: python3 config_probe.py fixture.json
Synthetic input: {"mode":"read-only"}
Expected / observed result: Accepted / exit 0
Untested conditions: No production application or plugins tested

Input bytes and runtime / Parser result versus shape result / Output and exit status