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Overview

Particles are modular prompt components that can be combined into system prompts. Each particle has a specific purpose (role, tone, guardrails) and is automatically versioned.

Create Particle

Response


Categories

Categories are composed in fixed order. Within each category, you control ordering via the order field.

List Particles

Filter by Category


Get Particle

Get Specific Version


Update Particle

Updates create a new version automatically:

Response


Delete Particle

Deleting a particle affects all system prompts using it. Unlink from system prompts first.

Version History

List all versions of a particle:

Response


Example Particles

Role: Customer Support

Guardrails: No PII

Format: Markdown


Errors


System Prompts

Compose particles into prompts

Models API

Attach prompts to models