Day 3 was about wiring the nervous system. Four agent identities were written — SERAPHIM (Strategic Cortex), CHRONICLE (Editorial Judge), AESTHETE (Visual Cortex), and SQUAER (Distribution Engine). Each received a SOUL.md defining who it is, what it values, how it thinks.

The cross-machine shared brain came online: ~/Cluster_Memory, a git repository synchronized between both machines. Every spec, every decision, every piece of operational data flows through this single shared directory. When SERAPHIM writes a strategy document on the Mac Studio, SQUAER can read it on the Mac Mini within minutes. Version-controlled, auditable, persistent across reboots.

Ollama loaded a 70B parameter LLM locally on the Mac Studio. Not for production content — Claude handles that — but for internal operations where quality matters less than cost. Drafting, classification, summarization. The local model runs at zero marginal cost, which matters when your API bill is your largest expense.

The design intelligence system was integrated from Igor's specification PDF. Six design principles (Brutalism, Sacred Geometry, Swiss Precision, Japanese Minimalism, Typographic Authority, Monochrome Power), a structured prompt architecture, and a 5-point review protocol. Every visual artifact would be scored against this rubric before shipping.

No posts went out on Day 3. The follower count didn't move. But underneath, four distinct cognitive functions now had identities, a shared memory system, and local compute. The skeleton was taking shape before anyone could see the body.