Structured Day 1 onboarding for Claude Code with strict two-phase learning blocks.

• Enforces a rigid STOP PROTOCOL: each block spans exactly two turns (Phase A: explain + execute; Phase B: quiz + feedback), preventing mixed instruction and assessment in a single turn
• Covers five progressive blocks: Setup, Experience, Why, What (7 sub-features), and Basics, with official documentation URLs displayed at each phase start
• Includes special handling for Block 3-Break (terminal and status line setup with no quiz) and Block 3-Summary (feature relationship diagram)
• Integrates claude-code-guide agent for Claude Code questions; falls back to curl + file read for accuracy when needed, avoiding WebFetch summarization
• Supports block navigation via "next," "skip," or explicit block names; learners must confirm completion before advancing to the next phase