codex-skills

You are executing the SKILL: system-contract-map.

Context:
This repository contains a multi-layer system with:

• Frontend
• API
• Backend
• Multiple market domains (crypto, stocks, prediction markets)
• Distinct AI/strategy logic and execution logic

Task:
Produce a system-level contract map that defines structure and expectations, not implementation detail.

Requirements:

• Identify core containers and boundaries
• Identify cross-boundary interactions
• Explicitly separate intent/decision logic from execution logic
• Document invariants that must always hold
• Do not model fine-grained state or UI logic

Outputs (write files exactly to these paths):

1. docs/diagrams/system/c4/container.mmd
2. docs/diagrams/system/sequences/-order.mmd for:
   • crypto
   • stock
   • prediction
3. docs/diagrams/system/invariants.md (append if exists)

Rules:

• Use Mermaid syntax
• Optimize for clarity and correctness, not completeness
• If assumptions are required, list them explicitly in invariants
• Do not invent features that are not implied by the repo

Begin by analyzing the repository structure and existing docs before producing artifacts.