Return a full learning-engagement health snapshot for a single client account, modeled on Content Controller's usage/LearnerHistory report. Includes per-course completion rates, average scores, content freshness (last update date), the client's delivery method (Launcher vs. their own LMS), and contract renewal date.

Use this when someone asks how a specific client is doing, wants a health check before a renewal, or needs an overview of a client's engagement.

Return the lowest-completion courses for a client, sorted ascending by completion rate. Use this to surface renewal risk: low completion means the client isn't getting value from the content, which threatens contract renewal.

Return all clients delivered via Content Controller Launcher (i.e. clients with NO LMS of their own). For these clients, CMR is the only party with visibility into learner engagement — so proactive monitoring matters most here. Use this to identify which accounts need CMR-side engagement monitoring.