Build Your Own
Import any text. Get a behavioral specification.
Tested on as little as 8 journal entries and as much as 600K+ words of published text. Conversations, essays, letters, autobiographies, any text that reflects how someone or something reasons. Pretty much any piece of text.
Download the code, then paste a prompt into your AI agent.
1. Download Base Layer
2. Paste into your AI agent
Works with any agent that has terminal access: Claude Code, Cursor, Windsurf, Cline, Aider, GitHub Copilot, Warp
Install Base Layer from the zip I downloaded, find my ChatGPT export, and run the pipeline. Show me the cost estimate first.
What happens
✓ Installs Base Layer from your download
✓ Finds your conversation export
✓ Shows cost estimate before spending
✓ Runs full pipeline: import → extract → author → compose
✓ Outputs your behavioral specification, 3–6K tokens
Requires Python 3.10+ and an Anthropic API key. Please store your API key as an environment variable.
Accepts ChatGPT exports, Claude exports, text files, journals, or any directory of writing.
Prefer the terminal? cd baselayer && pip install . && baselayer run my-data.zip
Where to use your brief
Click a card for step-by-step directions.
Estimated cost
Based on actual pipeline runs across our example subjects.
| Corpus Type | Cost |
|---|---|
| Journal entries | $0.10–0.25 |
| Personal conversations | $0.30–0.80 |
| Short autobiography | $0.25–0.50 |
| Full autobiography | $0.30–0.60 |
| Long-form writing | $0.40–0.80 |
| Investment letters | $0.50–1.00 |
| Dense professional memos | $0.50–1.50 |
| Technical patent corpus | $0.50–1.50 |
Uses Haiku (extraction), Sonnet (authoring), and Opus (composition). Run baselayer estimate to preview your exact cost before spending anything.
Privacy: Your data stays on your machine. Conversation text is sent to Claude's API for extraction, the same way any API call works. Nothing persists remotely beyond Anthropic's standard API retention. No data is sent to Base Layer.
Upload your conversations
Want your own behavioral specification? Upload your ChatGPT export, Claude export, journals, essays, or any text about or by you. We'll run the pipeline and send you a private link to your spec within 48 hours.
Common formats: .json, .zip, .txt, .md, .pdf, .docx — or anything text-based.
Google sign-in required for secure file upload.
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