Missions

Missions simulate real engineering work. Each mission is a ticket with a description, acceptance criteria, difficulty level, and estimated time. You write code in our browser-based sandbox, and our validation engine checks your solution automatically.

• Description — What you need to build and why
• Acceptance Criteria — Specific requirements your solution must meet
• Starter Code — Boilerplate to get you going
• Hints — Progressive guidance if you get stuck
• Validation — Automated checks that verify your solution

Missions range from introductory (first tool caller, first RAG system) to advanced (multi-agent code reviewer, safety guardrails pipeline). Difficulty is indicated by XP reward — harder missions earn more.

Each mission has hints you can reveal using tokens. Pro members receive tokens that refresh periodically. Hints provide directional guidance without giving away the full solution.

For a comprehensive walkthrough of how missions work, including tips on using the sandbox, understanding validation, and maximizing your learning, check out the Missions Guide.