# Onboard

> Guided five-stage onboarding: big picture, domain, interfaces, patterns, hardening.

- Skill: `majiayu000/onboard-15` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/onboard-15`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/onboard-15/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/onboard-15

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# Guided Onboarding

Walk a new developer through the codebase in structured stages.

## Stages

| Stage | Focus | Categories | Difficulty |
|-------|-------|------------|------------|
| 1 | Big picture | architecture, data_flow | 1-2 |
| 2 | Core domain | business_logic | 2-3 |
| 3 | Interfaces | api_contract, data_flow | 3 |
| 4 | Patterns | pattern, dependency | 3-4 |
| 5 | Hardening | error_handling, business_logic | 4-5 |

## Steps

1. Load onboarding progress
2. Show current stage and progress summary
3. Present 5 challenges from current stage
4. Enable hints on first attempt
5. Track mastery (correct twice = mastered)
6. Check advancement (80% across 10+ challenges)
7. Report progress

## Graduation

After stage 5, the developer enters the regular gauntlet.
Answer history carries over.