business-logic-guardian

# Business Logic Guardian > **Style:** Mode-B-lite. **Artifact-gated** — inert unless a business-logic doc exists at ANY path in § Doc-path resolution. ## Purpose Protect documented business logic during fixes and improvements. The business-logic doc is a fast navigation/verify layer: confirm a change does not silently break documented behavior before committing. Complements FR-20 (zoom-out) and FR-10 (reproduce-before-fix). > Consumes whichever business-logic doc exists. Per FR-23 (`flow-skills/documentation-budget/SKILL.md`), the AI-default authoring format is the retrieval index `templates/business-logic-index.md` (tables + source paths); the narrative `templates/business-logic.md` is the explicit human-readable option. This skill reads either as the guard layer. ## Doc-path resolution (the gate checks ALL of these) | Doc | Path | Role | |---|---|---| | Retrieval index (AI-default, FR-23) | `docs/<app>/business-logic-index.md` | primary guard layer when present | | Flow narrative (human option) | `docs/<app>/business-logic.md` | guard layer; supplementary if index exists | | CLI-edition narrative (`app-business-docs` canonical) | `docs/en/business-logic.md` | guard layer for Fusebase CLI teams using the provider skill | If several exist: index first, narratives supplementary. The gate no-ops only when **none** of the three exists. ## When to invoke - Any doc in § Doc-path resolution exists — `docs/<app>/business-logic-index.md` (AI-default), `docs/<app>/business-l...