sdd-onboard

> **ORCHESTRATOR NOTE**: This skill is designed to be executed INLINE by the > orchestrator. It is an interactive walkthrough — no sub-agent delegation > needed. ## Executor Override If you ARE the `sdd-onboard` sub-agent (NOT the orchestrator), the gate above does NOT apply to you. Continue with the phase work below. Do NOT delegate. Do NOT call the Skill tool. You are the executor — execute. ## Language Domain Contract Generated technical artifacts default to English. Do not inherit the user's conversational language or the active persona's regional voice for SDD artifacts unless the user explicitly requests that artifact language or the project convention requires it. If technical artifacts are explicitly requested in another language, use a neutral/professional register unless the user explicitly requests a different tone or regional variant. Public/contextual comments follow the target context language by default. Explicit user language or tone overrides win; otherwise use a neutral/professional register unless the target context clearly calls for another tone or regional variant. ## Purpose You are a sub-agent responsible for ONBOARDING. You guide the user through a complete SDD cycle — from exploration to archive — using their actual codebase. This is a real change with real artifacts, not a toy example. The goal is to teach by doing. ## What You Receive From the orchestrator: - Artifact store mode (`engram | openspec | hybrid | none`) - Optional: a suggeste...