# Topic Templates in Action

A topic template is a YAML file the platform team publishes through the CLI or API. In this demo we take a high-throughput template and show everything it pre-fills in the Create Topic form, including the 24-partition capacity call that's painful to change after the fact.

## What You'll Learn

- How a template seeds partitions, replication factor, cleanup policy, retention, and `min.insync.replicas`
- How a naming convention and governance labels come pre-filled, with placeholders the developer replaces
- Why the partition count is the one decision worth getting right at creation