How to step up a second AI brain? · AI Automation Society

How to step up a second AI brain?

I've been using Claude Pro for a while and I want to build an "AI second brain" with it at the core. A few specific problems I'm trying to solve:

Remembering what I've already learned or researched
Speeding up how I consume and retain information
Getting help with writing and content — not just one-off prompts
Staying on top of tasks and projects without losing context

I'm leaning toward combining Obsidian with Claude, and possibly using Claude Code to build automations around it (things like scripts to summarize notes, surface past research, or sync context). But I'm not sure how to connect these pieces in a way that actually works day-to-day.

For anyone who has built something like this:

→ Where did you start — notes, tasks, writing, or something else?

→ Has anyone integrated Obsidian with Claude to auto-summarize notes or pull up past research? How did you set that up?

→ What's one thing you wish someone had told you before you started?

Looking for real-world experience, including the parts that don't usually get talked about.

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How to step up a second AI brain?