Assurance source reference
Proof-First Harness
Operating principle that every completion claim must be backed by files, commands, or live events.
Definition
Proof-first means the harness treats artifacts and command output as stronger than agent claims. A run is not done because an agent says it checked something; it is done when the configured gates can verify the required evidence.
Practical Rules
- Required artifacts must exist under the declared artifact root.
- Skipped nodes need explicit reasons.
- Failed nodes need failure reasons and recovery paths.
- Red Zone approval is human-only.
- Self-heal findings need a real reviewable artifact or PR path.