Each tool has a distinct purpose: single-file transcription, batch transcription, reading a transcript, and viewing usage statistics. There is no overlap or ambiguity between the tools, even between transcribe_file and transcribe_directory, as their names clearly indicate the scope of operation.

All tool names follow a consistent verb_noun pattern: transcribe_file, transcribe_directory, get_transcript, get_usage. The verbs (transcribe, get) match the action performed, and the nouns clearly indicate the target. This makes the API predictable and easy to learn.

With just four tools, the server is tightly scoped to its purpose of transcription and transcript retrieval. Each tool is necessary and covers a distinct workflow step, leaving no feeling of bloat or missing essential functionality.

The core transcription workflow is fully covered: transcribing files (individually or in bulk), retrieving the resulting transcript, and checking account usage. There are no obvious gaps for the stated domain; optional operations like deleting or listing transcripts are not essential for the main use case.