Documentation

Getting Started

• What ChengOS Is
• Core Concepts
• Installing ChengOS
• Install ChengFlow Desktop
• Your First Workflow
• Your First ReAct Agent
• System Overview

Platform

Workflow Editor

• Canvas Basics
• Node Configuration & Schema-Driven Forms
• Variables & Data Mapping
• Subflows & Batch Subflows
• Interactive Testing & Debugging
• Workflow Templates
• Workflow Versioning

Agents & Skills

• ReAct Agent Guide
• Tool Discovery & Tool Hub
• Connecting MCP Servers
• Skills System Overview
• The Jev Decision System
• Semantic Routing with Decision Branch

Knowledge & Data

• Document Workspace
• Table Workspace
• Knowledge Bases & Workspace Context
• RAG Pipeline Design

Chat & Channels

• Embedded Chat in the Editor
• Messaging Channels
• Channel Routing & Session Mapping

Apps & Pages

• Publishing a Workflow as an App
• Page Nodes & Layout
• Page Access Control & RBAC Guard

Execution & Observability

• Execution Model: DAG, Scheduling, State
• Traces, Logs & Replay
• Approvals & Human Review
• Tool-call Approval Policy
• Scheduling & Triggers

Node Reference

I/O & Utilities

• Input & Output Nodes
• Media Input Nodes
• Flow Control Nodes
• System & Safety Nodes

AI Nodes

• LLM Nodes
• Decision Branch Node
• Agent Nodes
• RAG Nodes
• Translation Nodes
• Media Generation Nodes
• Chat Nodes

Tool Nodes

• Code Execution Nodes
• File Operation Nodes
• Workspace Tool Nodes
• HTTP & Web Nodes
• VPS Benchmark Node
• Code Index Nodes

Orchestration & Hubs

• Subflow & Schedule Nodes
• Workflow Introspection Nodes
• Hub Nodes
• Skill & Package Nodes
• Document & Table Nodes
• Workspace Nodes

Clients & Integration

Cheng CLI

• Installing the CLI
• Using the CLI
• Remote & Cross-Device Connections

Gateway SDK

• SDK Quickstart
• Gateway Model: Apps, Channels, Sessions
• SDK API Reference
• Integration Examples

Operations & Development

Deployment

• Deployment Modes
• chengos.sh Script Reference
• Native Deployment
• Docker Deployment
• Hardening a Public Deployment
• Upgrades & Rollback
• Public Read-only Demo Mode

Configuration

• Environment Variable Reference
• LLM & Model Configuration
• Decision Providers & TypeSafe Jev
• Presets & Shortcuts
• Storage, Redis & Vector Configuration

API Reference

• REST API Overview
• WebSocket API
• Authentication
• OpenAPI Specification

Development

• Development Setup
• Architecture Deep Dive
• Crate Structure
• Writing a Custom Node

Community

• Connect to ChengHub over MCP

Troubleshooting

• Installation Problems
• Execution Failures
• LLM Provider Errors
• Channel Problems
• Frequently Asked Questions