Introducing Ouroboros by Papercargo

OUROBOROS

Prompt. Smarter.

The browser extension that improves your AI prompts before you send them. See exactly what changed. Always your call.

Join the waitlist See it in action
Scroll

The difference

Before.
After.

What you typed

"write me something about our product launch for the marketing team"

→
What Ouroboros sends

"You are a senior marketing copywriter. Write a concise internal announcement for our product launch targeting the marketing team. Include: key features, launch date, and 2-3 talking points for external communication. Tone: confident and energizing. Format: short paragraphs, no bullet points."

Added role and domain context Specified audience and output format Added tone and structural guidance Defined required content elements

The process

Three steps.
Better outputs.

01
Type naturally

Write your prompt the way you always do. On ChatGPT, Claude, Gemini, Copilot — anywhere. Ouroboros watches quietly in the background.

02
See the improvement

Click the Ouroboros trigger. In seconds, see an improved version with a word-level diff showing exactly what changed and why.

03
You decide

Use the improved prompt, keep your original, or edit before sending. Nothing goes anywhere without your explicit approval. Always.

Works on
ChatGPT Claude Gemini Copilot Perplexity Any text field
Chrome & Edge

GET
EARLY
ACCESS

Ouroboros is in beta. Join the waitlist and be among the first to use it. Free during beta — bring your own API key or use Ollama locally.

✓ You're on the list. We'll be in touch.

For teams
Enterprise & Azure
Azure AD, admin policies, audit logs, group config.
Talk to us