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Single tool 'playWithNumbers' has minimal definition quality. Description is generic (9 chars, well below 20-char minimum). Input schema present but parameter 'num' lacks description entirely. No output schema documented. Tool name lacks action verb (should be 'calculate_with_numbers' or similar). No error handling guidance. This is a proof-of-concept compiler, not a production MCP server, the tool definition appears to be a test fixture rather than a real implementation.
Plays with numbers
Tool description 'Plays with numbers' is 19 characters, below 20-char minimum and provides no actionable context for LLM selection. Does not explain what the tool does, when to use it, or what it returns.
Parameter 'num' has no description. LLM cannot infer whether this is a count, index, ID, or mathematical operand.
Tool name 'playWithNumbers' does not start with an action verb. Naming should follow verb_noun pattern (e.g., 'calculate_with_numbers', 'transform_number'). Current name is vague and does not convey intent.
No output schema documented. LLM cannot plan downstream calls or extract results. Tool definition must include return type structure and field descriptions.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 26 | 2025-06-18+ | v2 |
No error handling or recovery guidance. If the tool fails (e.g., invalid input), LLM has no guidance on what to do next. Per pattern:recovery-guide, errors must tell the agent what to do.