Support analytics configuration

**Problem**
When working with types, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No files, tests, or entry points are identified. Start by locating the type-handling and error-reporting paths in the terminal agent, then clarify which analytics configuration and error-message cases are in scope. Done should include agreed detailed messages and coverage for the affected cases.

Written by the indexing model from the issue text.