Each tool maps to a distinct action: random draw, single-word lookup, keyword search, note writing, status update, aggregate stats, and reset. The main overlap is between idiom_detail and search_idiom when a keyword is an exact idiom, but descriptions clarify that one returns full detail plus progress while the other returns a list with draw counts.

All names use snake_case, which is consistent and readable. Most follow a verb_noun pattern (draw_idiom, add_note, search_idiom, update_status, reset_word), with minor deviations like the noun-phrase idiom_detail and the bare noun progress.

Seven tools is well-scoped for a flashcard-style learning server, with one tool per core operation and no redundant surface area.

The lifecycle is well covered: draw, inspect, search, annotate, update mastery, view aggregate progress, and reset. Minor gaps exist—no way to list or filter idioms by status/note, no batch status update, and no browsing of the full corpus—but workarounds via search and progress exist.