Three tools with minimal descriptions (10-20 chars each) and empty input schemas. 'screenshot' and 'navigate' lack parameter descriptions entirely. 'evaluate' has a single param with minimal guidance. No output schemas documented. Tool names are action verbs (positive), but descriptions are far below the 50-200 char baseline for LLM-optimized tools. No error handling guidance, no pagination, no structured output documentation. This server falls well below production quality.

• Expand tool descriptions to 50-200 chars. Example: 'screenshot' → 'Captures a screenshot of the current page and returns it as a base64-encoded PNG image. Use this to verify page state or visual changes after navigation or script execution.'
• Document output schemas for all tools. Specify: screenshot returns {image: string (base64), width: number, height: number}; navigate returns {url: string, title: string, status: number}; evaluate returns {result: any, error?: string}.
• Add parameter descriptions and constraints. For 'url' in navigate: 'Full URL to navigate to (must start with http:// or https://). Relative URLs are not supported.'
• Add error handling guidance. Example: 'If navigation times out, the tool returns {error: "timeout", retryable: true}. Retry after 2 seconds or suggest a different URL.'
• Document security boundaries for evaluate: 'Script runs in page context with full DOM access. Do not pass untrusted code. Returned values are serialized to JSON; circular references and functions are stripped.'

Inferred effective spec: 2025-06-18+.

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