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Nick Spisak

Anthropic's NEW Claude Code Sub Agent Mode: Build Multi‑Persona AI Assistants in Minutes!

🧵 THREAD: I just got EXCLUSIVE insider access to how Anthropic engineers are ACTUALLY using Claude Agents internally (this will blow your mind) 👇

1/ 🚨 BREAKING: An Anthropic engineer named Sid just accidentally revealed their internal agent system in a viral post that went from 400 followers to 390,000+ views in HOURS

His simple demo post is now the blueprint everyone's copying

2/ 💡 REVELATION #1: They're using Claude to BUILD Claude agents (meta AF)
- Engineers feed Claude its OWN documentation
- Then reference "SuperClaude" personas they built BEFORE agent mode existed
- It auto-generates 9 specialized sub-agents in markdown format
- Each stored as individual artifacts for instant deployment

3/ ⚡ REVELATION #2: The efficiency is INSANE
- Base model access to BOTH Opus AND Sonnet (no Haiku limitations)
- Personal agents work across ALL projects globally
- One system prompt = infinite specialized workers
- Setup time: literally 30 seconds per agent

4/ 🔥 REVELATION #3: Their internal workflow is genius
- They use "/agent" commands directly in terminal
- Pre-built personas: architect, security engineer, front-end dev
- Each has "rules of engagement" and coding standards baked in
- They can switch contexts instantly without losing project knowledge

5/ 🤯 REVELATION #4: The redundancy system is wild
- They built SuperClaude BEFORE agent mode existed
- Now they're importing those personas into the new system
- Shows they've been thinking about specialized AI workers for months
- Classic engineer move: build it twice, keep the best parts

6/ 🎯 REVELATION #5: The humanizing quirk
- Engineer admits he's "not going to read through all of this"
- Uses Claude to understand Claude's own documentation
- Shows even Anthropic engineers rely on AI to navigate AI complexity
- They're as overwhelmed by the pace as we are

My takeaway: Anthropic engineers aren't just building AI tools—they're living in the future where AI builds AI. The fact that they're using their own product to understand their own product tells you everything about where we're headed.

The revolution isn't coming. It's here. 🚀

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