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Once your first agents run reliably, three levers take you further: better architecture (splitting work), better reuse (shared knowledge), and better cost control (the right model and calling strategy for each job).

Sub-agents

A manager agent orchestrating helpers — for batch work, context isolation, and distinct phases.

Skills

Reusable instruction modules any agent can pick up — the right way to share behavior.

Model tiers

Expert to build, Pro to run — raise a level when it struggles, dial down once proven.

Programmatic tool calling

Deterministic tool sequences that cut costs 30–80% on repetitive workflows.

Prefer to watch?

Section 3 of the video series covers these topics in short videos.