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The 'echo' tool has a minimal schema with no parameter descriptions and a missing tool description. The input schema shows {"message":{"type":"string","description":null}}, violating the requirement that every parameter must have a non-empty description. The tool itself has no description visible in the code, making it impossible for an LLM to determine when or why to select it. The tool name 'echo' is generic and does not follow verb_noun convention (should be something like 'echo_message'). No error handling, no output schema documentation, and no security considerations are evident.
Tool 'echo' has no description. LLMs cannot determine when or why to select this tool without a description explaining its purpose, use case, and return value.
Parameter 'message' has null description. Every parameter must have a non-empty description explaining what it controls and its expected format. Current schema shows description:null, violating the baseline that 100% of A+ tool params have descriptions.
Tool name 'echo' is generic and does not follow verb_noun convention. Should be 'echo_message' or similar to clearly signal the action. Generic names like 'echo', 'process', 'handle' reduce LLM clarity.
No output schema documented. The tool returns {content: [{type: 'text', text: string}]} but this structure is not documented for the LLM. LLMs need to know what fields to expect to plan downstream calls.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 24 | 2026-07-28+ | v2 |
No error handling or recovery guidance. If the tool fails, the LLM receives no actionable error message or guidance on what to do next. Error responses must tell the LLM what to do.