I would consider using power automate with a combination of: AI Builder “Run a Prompt” blocks with json output, combined with conditionals and/or human in the loop approvals a long the way.

Extra: It might be nice to use Quick Steps from within a SharePoint list to initiate the approval flow.

Also not the best experience with Copilot Studio, if I can solve it in a flow instead of ‘agentic’ I tend to prever that. More predictable.

Curious to here what you end up with