Hello World Example

Create your first OpenSIN agent in 5 minutes.

Prerequisites

pip install opensin-cli

Step 1: Create an Agent

opensin agent create hello-agent \
  --model openai/gpt-5.4 \
  --system-prompt "You are a friendly assistant. Respond with enthusiasm!"

Step 2: Test Your Agent

opensin agent test hello-agent --prompt "Hello, world!"

Step 3: Send a Message

opensin agent send hello-agent "What can you do?"

Expected Output

Agent: hello-agent
Response: Hello! I'm your friendly OpenSIN assistant! I can help you with research, writing, coding, and much more. What would you like to explore today?
Tokens used: 45
Cost: $0.00135
Duration: 1.2s

Next Steps

• Multi-Agent Example
• Telegram Bot Example

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Relevante Mandate

Mandat	Priority	Regel
Bun-Only	-1.5	bun install / bun run statt npm
Annahmen-Verbot	-5.0	KEINE Diagnose ohne Beweis
Test-Beweis-Pflicht	0.0	KEIN "Done" ohne echten Test-Lauf

→ Alle Mandate