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Single tool 'echo' with critical definition gaps. Tool has a description ('Echo a message', 11 chars, below 20-char minimum) and input schema present but parameter description is null. No output schema documented. No error handling guidance. Tool is trivial (read-only echo) and does not reflect production patterns.
Echo a message
Tool description 'Echo a message' is 11 characters, below 20-char minimum. Descriptions must be 10 - 1024 chars with actionable context (WHAT, WHEN, prerequisites).
Parameter 'message' has null description. Rubric requires every parameter to have a non-empty description explaining what it controls. LLMs cannot infer meaning from names alone.
No output schema documented. Tool returns content array with text field, but LLMs need explicit schema documentation to plan downstream calls and extract data correctly.
No error handling or recovery guidance. Tool lacks error classification (retryable vs user-fixable vs fatal) and actionable error messages to guide agent behavior on failure.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 42 | 2026-07-28+ | v2 |
Tool name 'echo' does not follow verb_noun convention. 'echo' is a generic action; 'echo_message' or 'repeat_message' would be clearer. Naming should convey intent before LLM reads description.