hedit 0.7.9.dev3

Multi-agent system for HED annotation generation and validation

HEDit

Convert natural language event descriptions into valid HED (Hierarchical Event Descriptors) annotations.

Part of the Annotation Garden Initiative.

Installation

# Default (lightweight API client, ~100MB)
pip install hedit

# Standalone mode (run locally without backend, ~2GB)
pip install hedit[standalone]

Quick Start

# Configure your OpenRouter API key (https://openrouter.ai)
hedit init --api-key sk-or-v1-xxx

# Generate HED annotation from text
hedit annotate "participant pressed the left button"

# Generate HED from an image
hedit annotate-image stimulus.png

# Validate a HED string
hedit validate "Sensory-event, Visual-presentation"

Commands

Command	Description
hedit init	Configure API key and preferences
hedit annotate "text"	Convert natural language to HED
hedit annotate-image <file>	Generate HED from image
hedit validate "HED-string"	Validate HED annotation
hedit health	Check service status
hedit config show	Display configuration

Options

hedit annotate "text" -o json          # JSON output for scripting
hedit annotate "text" --schema 8.3.0   # Specific HED schema version
hedit annotate "text" --standalone     # Run locally (requires hedit[standalone])

How It Works

HEDit uses a multi-agent system (LangGraph) with feedback loops:

1. Annotation Agent - Generates initial HED tags
2. Validation Agent - Checks syntax and tag validity
3. Evaluation Agent - Assesses faithfulness to input
4. Assessment Agent - Identifies missing elements

Annotations are automatically refined until validation passes.

Links

• Documentation
• GitHub Repository
• HED Standard
• OpenRouter - Get an API key

License

MIT