Ultimate Second Brain

An AI knowledge base that captures, files, and briefs you while you sleep.

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Description

A four-layer Obsidian vault architecture (raw, wiki, digest, identity) designed to be maintained by automated AI agents. It uses nightly cron jobs to compile messy inbox captures into clean wiki pages and generates a morning brief to replace manual review tasks.

Descriptions, tags, and model credits may be AI-generated or inferred from public sources and can be incomplete or wrong. Learn more.

Details

Why this is interesting: Demonstrates a practical, automated application of AI for personal knowledge management that goes beyond simple chat…
Built with: LTX 2.3 Pro 3.1 Pro Vidu Q3 Pro Seedream 5.0 Pro Seedance 1.5 Pro Flux 2 Pro Nano Banana Pro Redwood AI Codex Opus 5 GPT-5.6 Luna GPT-Live K2.7 Code North Mini Code Opus 4.8 GPT Image 2 Opus 4.7 Opus 4.6 Sora 2 Whisper
Tags: #productivity #knowledge-management #obsidian #automation

Discovered: X
First posted: X · Jul 31, 2026
Listed: Added 3h ago
Build: Moderate
Models: Strong

Prompt

# CONTEXT RULE (read first, every time)
1. Read identity.md and projects.md before answering anything.
2. Pull ONLY the notes that match the question, follow their links
   one hop out, and cite every note you used by name.
3. If the vault has the answer, never answer from training data.
4. If the vault does not have it, say so plainly.
5. When I say "remember this", write it to the right layer yourself.

NIGHTLY (runs at 03:00):
Read everything new in /0-raw. File each item: facts about me into
identity.md, tasks into tasks.md, project updates into projects.md,
knowledge into the right /1-wiki page, rewriting the page so it stays
one clean current version instead of a pile of appendices. Find links
between this week's notes and older ones and note them in the wiki.
Flag anything untouched for 14+ days. Then write tomorrow's brief
to /2-digest/brief.md: project state, open loops, what carried over,
one thing I'm avoiding that matters. Log every decision.

Source

All projects

Agents / Skills