Claude Context Engine

Paste messy context, such as logs, code dumps, config files, or meeting notes, and get back a tighter prompt that’s ready to give Claude or another assistant. A hosted AI model does the rewriting.

Sends text to a server

Avoid pasting passwords, API keys, or private data. Common secrets and personal details are masked automatically, but check the preview. When you press Rewrite, your text is sent to a server I run, which passes it to a hosted AI model. If you need everything to stay on your device, use Context Extractor or Prompt Matrix Evaluator.

Your context

~0 tokens

What should it do?

More options

Mask secrets and personal data before sending API keys, tokens, passwords in config, email addresses, phone numbers, and IP addresses are replaced with placeholders in your browser. Remove clutter before sending Dependency lists, copyright lines, and blank lines are cut in your browser first. Put the rules at the end Models tend to pay most attention to the end of a long prompt. Remember my pasted text on this device

Preview exactly what will be sent

Rewritten prompt

The rewritten prompt will appear here.