Loading ToolBench
A Python-based MCP server that exposes utility tools including datetime retrieval and audio playback functionality
This server has critical definition quality gaps. Tool naming is acceptable (verb_noun pattern), but descriptions are minimal and lack LLM-optimization guidance. Input schemas are completely absent, all 4 tools declare empty input objects `{}` with no parameter documentation. Output schemas are undocumented. Duplicate tool registration (get_current_datetime appears twice across files) indicates poor composition. Sound-playing tools lack error recovery guidance. No pagination, no structured output, no field documentation.
Return the current date and time in ISO 8601 format.
Return the current date and time in ISO 8601 format.
Play a sound to indicate the AI assistant needs confirmation. This function plays the sound file 'cursor_confirmation.mp3' to provide auditory feedback when the assistant needs confirmation for executing a command or tool.
Play a sound to indicate the AI assistant has completed its task. This function plays the sound file 'cursor_done.mp3' to provide auditory feedback when the assistant has finished its answer.
All tools have empty input schemas ({}). No parameter types, constraints, or descriptions are defined.
Duplicate tool registration: get_current_datetime is defined identically in both mcp-datetime.py and mcp-utils.py. This violates single-responsibility principle and creates ambiguity for LLM tool selection.
Output schemas are undocumented. Tools return strings but LLMs cannot infer structure (e.g., does play_done_sound return JSON, plain text, or structured error?).
Sound-playing tools lack actionable error recovery guidance. Errors return strings like 'Error playing sound: ...' but do not tell the LLM what to do next (retry, check file, ask user). Per pattern: error responses must guide next steps.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 32 | 2026-07-28+ | v2 |
Tool descriptions are generic and under 100 characters. 'Return the current date and time in ISO 8601 format' lacks context on WHEN to use this vs alternatives, or what downstream tools expect.