NoteMeld exposes 3 tools with Chinese descriptions and minimal parameter documentation. All tools have input schemas present, but parameter descriptions are sparse or missing entirely. lookup_transcript accepts 4 optional parameters with no descriptions for start_time, end_time, or keyword; only 'position' has an enum constraint. get_video_info and get_note_content accept no parameters. No output schemas are documented. Error handling is absent, no guidance on what happens on failure or how to recover. Tool names follow verb_noun convention (lookup_, get_) but descriptions are in Chinese, limiting LLM comprehension in English-first systems. No tool annotations (readOnlyHint, destructiveHint) despite all being read-only operations.

• Add English descriptions to all tools. Replace Chinese text with clear English: 'lookup_transcript: Search video transcript by time range, keyword, or position (start/end). Returns matching transcript segments with timestamps.' Baseline: 194 chars average.
• Document all parameters in lookup_transcript. Add descriptions: start_time='Start time in seconds (0=beginning, 60=1min)', end_time='End time in seconds; omit for end of video', keyword='Search term; returns segments containing this word'.
• Document output schemas for all tools. E.g., get_video_info should return {title, author, description, tags, duration_seconds, view_count}. get_note_content should return {content_markdown, generated_at}.
• Add error handling guidance. E.g., 'If lookup_transcript returns no results, try broadening the time range or removing the keyword filter.' Implement error responses that classify as retryable vs user-fixable.
• Add tool annotations. Mark all tools with readOnlyHint=true in input schema to signal safety and enable client optimizations.