Server has 19 tools with complete JSON schemas and descriptions. Naming follows verb_noun convention (get_, list_, download_, etc.). Descriptions are present but brief (avg ~80 chars, below 194-char baseline). Parameters have types and descriptions. However, output schemas are not documented, responses are returned as pretty-printed JSON without formal schema declarations. Error handling exists but lacks recovery guidance. No tool annotations (readOnlyHint/destructiveHint). Missing parameter constraints (enums, ranges) for several tools. Composition is sound, tools are single-responsibility and chainable.

• Add formal output schemas to each tool definition. Document the structure of returned objects (e.g., Course has fields: id, name, code, enrollment_term_id, etc.). Include in tool.as_mcp_tool() response.
• Add tool annotations: set destructiveHint=true for download_course_files, download_submission_attachments, generate_course_index, export_video_ppt_assets. Set readOnlyHint=true for all list_* and get_* tools.
• Expand tool descriptions to 100-200 chars. Add WHEN to use hints: 'Call list_courses first to discover available courses, then use get_course for details.' Include dependencies and prerequisites.
• Add pagination to list_* tools: accept optional limit (default 20, max 100) and offset parameters. Return total_count and has_more in response. Document in description.
• Enhance error messages with recovery guidance. E.g., 'Course 999 not found. Available courses: [list]. Call list_courses() to discover valid IDs.' Use pattern:recovery-guide.