`generate_bot_message` is one domain Task, but it currently does 5–6 separate jobs.

[Pouyanpi]

generate_bot_message ref

Violation of Single Responsibility: one 200 line method doing everything from lookup to templating to raw LLM calls to AST-style post processing.
Branch explosion: four or five nested if/elif blocks on config flags makes the control flow almost unreadable.
Hard to extend/test: want to change how passthrough works? we have to wade through static lookup and default generation code first. unittesting a single branch means mocking out five others.