Single tool 'get_board_style' has a detailed description (German, ~450 chars) but critical schema and parameter documentation gaps. Input schema visible with 'board_url' (string) and 'max_images' (integer), but lacks type constraints, ranges, enums, and error handling guidance. Description is verbose and mixes implementation details with usage intent. No output schema documented. No parameter descriptions visible in the schema itself, only in the tool description. The tool name is acceptable (verb_noun), but the overall definition lacks the rigor expected for production use.

• Add 'description' fields to each parameter in the JSON Schema. E.g., 'board_url': {'type': 'string', 'description': 'Public Pinterest board URL (format: https://www.pinterest.com/<user>/<board>/)'}.
• Document output schema: specify that the tool returns base64-encoded images, analysis instructions, and measured facts (JSON). Include field names, types, and what each field contains.
• Add constraints to 'max_images': set minimum=1, maximum=25, default=25 in the schema. Describe the impact of the limit on response size and analysis quality.
• Rewrite tool description in English, under 200 chars, focusing on user intent: 'Fetch and analyze the visual style of a public Pinterest board by downloading recent pins as base64 images and returning color palettes, typography, and mood analysis.'
• Add error handling section to description: 'Returns error if board is private, URL is invalid, or network fetch fails. Suggest search_pinterest_boards() if URL is unknown.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry