Module 02 Summary

What this module established

Templates fail at render time on a missing input; f-strings produce a prompt about None and a confident answer about account None. Role assignment is a design decision - retrieved context in the human turn reads as something the user said, which matters when it conflicts with their instructions.

Carry forward

• The provider interface is portable; the behaviour is not. Treat a swap as a change requiring the full eval set.
• temperature=0 is noise reduction, never determinism. Anything requiring identical output belongs in code.
• Record prompt_version and policy_version. The prompt changes weekly and is rarely thought of as a change to the system.

Before moving on

Move on when every prompt is a template, a provider swap has been re-evaluated per case, and your config carries both version fields.

Mark complete