Key Gates

N-COVERAGE (zero-loss gate)

The coverage gate computes a set-difference between the original ACUs and the assembled draft. If any ACU is missing from the draft, the gate fails and the pipeline loops back to incorporate the missing content.

This is the mechanical enforcement of the zero-loss invariant (INV-1). It is a no-llm node --- it runs as code, not LLM self-grading.

N-REVIEW-GATE

The review gate presents each section of the draft to the user for approval. The user can:

• Approve a section
• Edit a section (the edit is incorporated and the section is re-verified)
• Reject a section (the section is reworked from the relevant earlier node)

The review gate is an exit-11 HITL pause. It does not auto-approve.