# Standards Reference The reference half of the Standards description: the enforceable rules, patterns, and the internal library catalog that agents consult while coding. - **Build Recipe** — the ordered, agentic checklist for a new app. - **Layering Rules** — the strict request → domain → repository layering and the rules that enforce it. - **Composition Root** — a single composition point wiring the whole app. - **Spec-First Routing** — the OpenAPI contract as the routing source of truth. - **CRUD Template** — the standardized generic resource endpoint scaffold. - **Pipeline Scaffold** — the deterministic pipeline skeleton for multi-stage jobs. - **Worker & Progress** — queued work, progress reporting, and visibility. - **Human-in-the-Loop** — guardrails and approvals inside automations. - **Infra Adapters** — how infrastructure connects without leaking into domain. - **Genericity Matrix** — what is library-backed, template-provided, or authored. - **Library Registry** — the catalog of internal libraries behind all of it. Read the **Wiki** for the philosophy and rationale; these pages are the reference that mirrors the `standards` MCP bundle.