Server has 20 tools with consistent naming (verb_noun pattern) and descriptions present for all. However, descriptions are often generic and lack actionable context. Parameter schemas are present but minimal, most lack constraints (enums, ranges, patterns). Output schemas are undocumented. Error handling is absent; no recovery guidance or validation messages. Security: credentials appear to be injected server-side (good), but no audit logging or permission gates visible. Composition is reasonable, tools are single-purpose, but many lack idempotency guarantees and chaining metadata.

• Document output schemas for all tools. Specify returned fields, types, and structure. E.g., get_clock_stats should return {battery_level: int, ram_usage: int, uptime_seconds: int, ...}.
• Add parameter constraints: brightness 0 - 255, duration 1 - 3600, repeat -1 or 1 - 100, indicator_id 1 - 3. Use JSON Schema minimum/maximum and enum for categorical params (effect, color format).
• Enhance descriptions to 80 - 150 chars. Include WHEN to use and WHAT happens. E.g., 'Reboot the clock (takes ~30s). Use after firmware updates or if unresponsive. Clock will be offline during reboot.'
• Add error handling and recovery guidance. E.g., 'Invalid app_name. Call get_apps_in_loop() to see available apps.' For irreversible ops, support a dry_run parameter or require explicit confirmation.
• Declare idempotency guarantees. Mark tools as idempotent (safe to retry) or non-idempotent (risk duplicates). Provide request IDs or deduplication keys for non-idempotent writes.