Frosty Studio MCP demonstrates solid naming conventions (verb_noun pattern: frosty_generate_image, frosty_cancel_job) and comprehensive tool descriptions (avg 120 chars, all present). Tool annotations are properly declared (READ, WRITE, TRASH). However, input schemas are severely underspecified: ImageSpec and VideoSpec are referenced as opaque objects with only 'description' fields, lacking visible type definitions, required fields, or nested property schemas. Parameter descriptions exist but lack format constraints (e.g., no regex patterns, min/max for numeric fields). Output schemas are undocumented, responses are inferred from code but not formally declared. Error handling is minimal; no recovery guidance or categorization. Pagination is implemented (frosty_gallery) but inconsistently. Overall: functional but falls short of production-grade tool engineering standards.

• Expand ImageSpec and VideoSpec schemas: define all required fields, types, constraints (e.g., 'prompt': {type: string, minLength: 1, maxLength: 2000}, 'num_inference_steps': {type: integer, minimum: 1, maximum: 100}). Use $ref to avoid duplication.
• Document output schemas for all tools. E.g., frosty_job returns {status: string, progress: number, error?: string, output_urls?: [string], ...}. Include field descriptions and types.
• Add error categorization and recovery guidance. E.g., 'Job failed: GPU out of memory. Retry with fewer inference steps or smaller resolution.' or 'Job not found. Check job_id or call frosty_video_jobs() to list active jobs.'
• Enhance parameter descriptions with format hints and constraints. E.g., 'job_id (UUID format, e.g. 550e8400-e29b-41d4-a716-446655440000)' and 'limit (1 - 100, default 30; controls max results per page)'.
• Implement confirmation pattern for destructive tools: add optional 'confirm' boolean parameter or return a 'requires_confirmation' response that the agent must acknowledge before executing.