Vault OS

Your vault works the night shift

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May 28, 2026 I automated my Obsidian vault with Claude — runs a 12-phase agent every night while I sleep

I built vault-os because my Obsidian vault was a graveyard.

Every day I'd capture notes, ideas, and voice memos. By evening,

nothing was processed. By morning, I'd forgotten what mattered.

So I automated the entire pipeline:

→ Telegram bot routes captures to daily notes by tag (#idea,

#signal, #link) — including voice notes transcribed locally

by whisper.cpp (no audio leaves your machine)

→ At 23:00, a 12-phase nightly agent wakes up. It reads the

day's captures, calls Claude API, synthesizes the thinking,

carries over unfinished tasks, and writes tomorrow's morning

brief automatically.

→ You wake up. The brief is there. Claude worked the night shift.

I used this system daily for 3 months before open-sourcing it.

It's MIT licensed, Windows-native, and built around Obsidian.

GitHub: https://github.com/sabahattink/vault-os

Happy to answer questions about the architecture or how to

adapt it to your own vault structure.

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I built vault-os because my Obsidian vault was a graveyard. I'd capture notes all day, then wake up the next morning with no memory of what mattered. Nothing was processed. Nothing connected. I was manually writing morn