# When to Use Milo

URL: /milo-cli/docs/about/when-to-use/
Section: about
Description: Choose Milo for typed CLIs, MCP tools, and reducer-driven terminal apps.

---

> For a complete page index, fetch /milo-cli/llms.txt.

Use Milo when the same code must serve more than one surface:

- A human command-line interface.
- A programmatic Python call.
- An MCP tool call from an agent.
- A discoverable llms.txt entry.
- A reducer-driven terminal app.

Milo is especially useful when schemas, structured returns, and repairable
errors matter. For a one-off local script that only parses argv and prints text,
the standard library may be enough.