The server implements 34 browser automation tools with reasonable naming (verb_noun convention: browser_*) and basic parameter schemas. However, the definition quality is significantly hampered by: (1) descriptions in Chinese, making them inaccessible to most LLM systems trained primarily on English; (2) inconsistent schema completeness, many tools defined in bench/newtools_real.py rather than main server.py, suggesting incomplete static registration; (3) shallow parameter descriptions that lack actionable guidance on constraints, prerequisites, or recovery paths; (4) no visible output schema documentation; (5) missing explicit error handling guidance; (6) no tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite clear semantic differences (READ_ONLY vs WRITE vs IRREVERSIBLE vs DESTRUCTIVE); (7) several high-risk tools (browser_evaluate, browser_upload_file, browser_adopt_page, browser_dialog_respond) lack confirmation gates or safety documentation. The schema structures visible for individual tools (e.g., browser_navigate, browser_click) are reasonably complete with type definitions, but this is not universal across the toolset. Overall, this is a competent but unpolished implementation.

• Translate all tool and parameter descriptions to English. Use the Chinese descriptions as source material but deliver MCP definitions in English for compatibility with mainstream LLM systems.
• Add formal tool annotations: mark READ_ONLY tools with readOnlyHint: true, WRITE tools as false (default), DESTRUCTIVE tools with destructiveHint: true, IRREVERSIBLE tools with destructiveHint: true and idempotentHint: false.
• Expand all parameter descriptions to 50-150 characters. Include: (1) WHAT it controls, (2) valid range/enum values, (3) default behavior, (4) example usage if helpful. E.g., 'direction: scroll direction (up|down|left|right, default: down), determines which way the page moves'.
• Add recovery guidance to tool descriptions. Examples: 'If element not found, try browser_find() to locate it first.', 'On timeout, check page load state with browser_wait_stable() before retrying.'
• Document output schemas for every tool. Add a 'Returns' section to tool descriptions specifying key fields and structure. Examples: 'Returns: {text: string, element_count: number, elements: [{selector, role, visible}]}'.
• Consolidate tool definitions. Move tools currently defined only in bench/newtools_real.py (test file) into the main server.py with formal registration so they are discoverable via tools/list.
• Add JSON Schema enum constraints for parameters with fixed values. E.g., browser_scroll's 'direction' should have enum: ['up', 'down', 'left', 'right'] in addition to the description.
• Add min/max constraints to numeric parameters in JSON Schema. E.g., timeout: {type: 'integer', minimum: 100, maximum: 60000, description: '...'}.

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

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