Core Architecture
OpenSIN is built on a modular, extensible architecture.
Components
QueryEngine
The heart of OpenSIN — manages the complete conversation lifecycle with async generators, ReAct loops, and token budget tracking.
Hook System
Event-driven automation with 20+ events and 5 execution modes (shell, HTTP, function, agent, prompt).
Tool System
Rich tool interface with 8+ built-in tools, deferred loading, and permission-aware filtering.
Permission System
Multi-source permission rules with 6 modes and auto-mode classifier.
Subagent System
Fork pattern with cache-identical prefixes for maximum cache hits.
MCP Client
Multi-transport support (stdio, SSE, HTTP, WS, in-process).
Sandbox
Filesystem and network rules with git escape prevention.
Memory System
File-based memory with SIN.md auto-discovery and session extraction.
Next Steps
Relevante Mandate
| Mandat | Priority | Regel |
|---|---|---|
| A2A-First | -200.0 | SELBST MACHEN via A2A-Agenten |
| n8n OSS Only | 0.0 | KEINE n8n Premium Features |
| Self-Hosted Supabase | 0.0 | OCI VM — KEINE Supabase Cloud |