Server has 13 tools with basic naming (verb_noun pattern mostly followed) but critical gaps in descriptions and schemas. Most tool descriptions are present but generic (avg ~80 chars, below 194-char baseline). Input schemas visible for all tools with proper types, but parameter descriptions are minimal. No output schemas documented. Error handling is absent, tools return raw exceptions rather than actionable recovery guidance. No tool annotations (readOnlyHint/destructiveHint). Security concern: tools like execute_java_command accept arbitrary code with no validation or sandboxing. Composition is reasonable (single responsibility per tool), but missing pagination, result limits, and chaining IDs in responses.

• Add output schemas to all tools. Document return types, field names, and structure. E.g., list_comsol_windows should return [{hwnd: int, pid: int, title: string, process_name: string}].
• Expand tool descriptions to 100-200 chars. Include WHEN to use, prerequisites, and side effects. E.g., 'Click a UI element by automation ID. Requires the element to be visible. Returns success or error with available element names.'
• Implement input validation and sanitization for execute_java_command. Whitelist allowed commands, block dangerous patterns (model.save, ModelUtil.save, saveModel), and return clear error messages. Consider a dry-run mode.
• Add tool annotations: mark read-only tools (list_*, get_*, find_*, take_screenshot, wait_for_element) with readOnlyHint=true; mark destructive tools (click_element, type_text, press_key, execute_java_command, open_java_shell) with destructiveHint=true.
• Implement structured error handling. Catch exceptions and return {success: false, error: string, recovery_hint: string, available_options: []}. E.g., 'Element not found. Try find_element() to list available elements.'