pagecast has 16 tools with generally clear naming and good platform-specific descriptions, but significant gaps in schema completeness, parameter documentation, and error handling prevent a higher score. 14 of 16 tools have descriptions, but parameter schemas are partially visible, many parameters lack explicit type constraints or detailed range/format documentation. Output schemas are not documented. Error handling is minimal; no recovery guidance or actionable error messages visible in definitions. The 'interact_page' tool uses a complex nested action array structure that lacks clear documentation of what each action type returns or how failures propagate. Compositions are reasonable (record → interact → stop → convert), but tools like 'convert_with_zoom_gif' and 'convert_with_magnify_gif' expose numerous tuning parameters (zoomLevel, transitionDuration, holdPerTarget, etc.) with defaults but minimal guidance on selection. STDIO-only transport prevents remote accessibility.

• Document output schema for every tool. For record_page, specify: returns { sessionId: string, width: number, height: number, startTime: ISO8601 }. For converters, specify: returns { outputPath: string, fileSize: number, duration: number }.
• Add explicit parameter constraints to conversion tools. E.g., zoomLevel: 'number (1.5 - 5.0, default 2.5), controls magnification factor; 2.5 typical for demos, 3.5+ for very small UI elements', transitionDuration: 'number (0.1 - 1.0 seconds, default 0.35), zoom fade-in/out speed; shorter for fast-paced demos, longer for slower reveal'.
• Break down interact_page action schema. Create a separate definition for each action type or document action-specific required/optional fields. E.g., 'wait action: { type: "wait", ms: number (1 - 60000) }, pauses video recording without browser interaction. click action: { type: "click", selector: string, timeout?: number (default 5000) }, clicks first matching element; fails if selector not found after timeout.'
• Add error handling guidance to each tool description. E.g., 'If record_page fails with "Browser error", verify the URL is reachable and the server has internet access. If playwright is not installed, rerun npm postinstall.' For interact_page: 'If selector not found, try interact_page with waitForSelector action first to wait for the element to appear.'
• Declare WRITE/DESTRUCTIVE risk explicitly in descriptions. E.g., cleanup: 'Stops all active recording sessions and deletes temporary files. This action is irreversible. Consider calling list_sessions first to review active sessions before cleanup.'