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SkyBrain

SkyBrain is a small personal memory and Markdown notes system for people who use AI tools as thinking partners.

It gives humans a fast writing surface and gives AI clients a shared MCP memory layer, backed by Cloudflare Workers and D1.

This project is intentionally single-user software. It is not a SaaS, not a team knowledge base, and not trying to replace Obsidian. The goal is a personal system that is easy to understand, easy to run, and honest about where the data lives.

What This Repo Will Contain

  • Cloudflare Worker backend

  • MCP tools for AI clients

  • REST API for the browser app

  • mobile-friendly Markdown writing UI

  • D1 migrations

  • fake demo fixtures

  • Markdown export tooling

  • setup and security docs

Related MCP server: second-brain-cloudflare

Public Code, Private Data

This repository is for public code and fake fixtures only.

Do not commit:

  • real notes

  • raw voice logs

  • generated personal backups

  • .env or .dev.vars

  • Wrangler state

  • bearer tokens

  • OAuth secrets

  • screenshots containing private notes

The private production deployment can use this code with private Cloudflare bindings, private secrets, and a private backup repo.

Status

Early planning/scaffold. The current private SkyBrain prototype still lives outside this repo.

See:

Draft shared types live in packages/shared/src/types.ts. Fake fixtures live in packages/fixtures/fixtures.v0.json.

License

MIT

Tool Schema Changelog

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Maintenance

ActivityStale
ResponsivenessNo issues

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