Limestone

A local-first lab notebook you and your agents can both use. Your notes are Markdown files in a folder you own — on your disk, readable without Limestone, yours if you stop using it.

Start here

• Installing Limestone — the macOS app, and what to expect on first run.
• Writing notes — blocks, slash commands, @ mentions, tables and images.
• Searching — finding things across a vault.

Working with agents

Limestone is an MCP server, so an agent — Claude Desktop, or the one built into the app — can read and write your vault directly.

• The agent console — running an agent against a vault.
• Reference — every operation an agent can call, generated from the code that defines them.

Reading this with an agent

The whole of this site is available as plain Markdown: /llms.txt indexes it, /llms-full.txt is all of it in one fetch, and every page is served at its own .md address — this one is index.md. Point an agent at any of those and ask it your question rather than reading a page to find the answer.

Your vault

• Syncing — a vault on a shared drive.
• Encrypted vaults — what encryption covers, and the key file that recovers it.
• Trash — what deleting does, and how to undo it.