> ## Documentation Index
> Fetch the complete documentation index at: https://launchpad.datalumina.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Learn about the core package that provides a flexible DAG-based workflow system for processing tasks through interconnected nodes.

<Info>
  The `core` package provides a flexible framework for defining and executing workflows. It implements a DAG‑based system where tasks move through processing nodes, and each node updates a shared task context.
</Info>

## Package Structure

The `core` package consists of the following components:

**Core Components:**

* **Nodes** - Node implementations for workflow processing
* **Schema** - Schema definitions for workflow configuration
* **Task Context** - Task context definitions for state management
* **Validation** - Workflow validation utilities
* **Workflow** - Workflow orchestration and execution

```
app/launchpad/core/
├── nodes/               # Node implementations for workflow processing
├── schema.py            # Schema definitions for workflow configuration
├── task.py              # Task context definitions
├── validate.py          # Workflow validation utilities
└── workflow.py          # Workflow orchestration
```

## Key Features

**Key Features:**

* **Workflow orchestration**: Define processing pipelines with interconnected nodes
* **Nested workflows**: Call a child workflow from a node and keep using the same `TaskContext`
* **Task context management**: Centralized state enables data flow between nodes
* **Node-based architecture**: Modular, reusable processing components
* **Schema validation**: Built‑in checks ensure valid DAGs and clear structure