Skill Function · The Architecture
The agent routes.
The skill thinks.
Most agent architectures start with the wrong question. Here is the fundamental shift.
The wrong starting point
Most teams optimize for the consequences instead of the cause:
- — MCP
- — Context windows
- — RAG
- — Orchestration
- — Security
Those are consequences. Not the cause.
Old world
One agent does all the thinking.
Everything in one context. One model. One shared window.
Agent
├─ Planner
├─ Researcher
├─ Expert
├─ Memory
├─ Orchestrator
└─ Tool User
Skill Function world
The agent doesn't do all the thinking.
The agent routes. The Skill Function thinks.
Agent
↓
Skill Functions
Each specialist has its own model,
context, knowledge, memory,
and execution environment.Each Skill Function has its own
Why the benefits fall out naturally
When the architecture is right, everything else follows.
Why is it cheaper?
The specialist chooses the right model for its task. You stop paying flagship prices for trivial work.
Why is it more secure?
Intelligence runs in isolated environments. Nothing touches your local machine.
Why does context scale?
Reasoning is distributed across many contexts. No single window limit. Skills call skills.
Why does memory improve?
Expertise persists inside skills instead of being reloaded into agent context every session.