Four tools with basic schemas and descriptions, but significant gaps in parameter documentation and output schema clarity. All tools have descriptions (10-50 chars, below the 50-200 char baseline for LLM optimization). Schemas present but sparse: count_characters and get_weather have minimal required params; search_products has 6 optional params but lacks enum constraints and range documentation; httpbin has empty schema. No output schemas documented. Error handling minimal, tools return text responses without structured guidance for recovery. No tool annotations (readOnlyHint, etc.). Naming is verb-forward (count_, search_, get_) but descriptions are too terse to guide LLM selection.
Count the characters in a string
Get the weather in a specific city
Get data from httpbin
Search for products by name, category, brand, or price range
httpbin tool has empty input schema ({}). No parameters documented, no output schema defined. Violates pattern:tool requirement for documented input/output.
search_products has 6 optional parameters but lacks enum constraints, range limits, and format specifications. E.g., minPrice/maxPrice have no documented bounds; category has no enum of valid categories. Invites hallucinated invalid values.
No output schemas documented for any tool. LLMs cannot plan downstream calls or extract structured data. E.g., search_products returns formatted text; get_weather returns a sentence. Violates pattern:response-shaper.
Tool descriptions are 20-65 characters, well below the 50-200 char baseline for LLM optimization. E.g., 'Get data from httpbin' and 'Count the characters in a string' lack context for when/why to use them vs similar tools.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | D | 51 | 2026-07-28+ | v2 |
No error handling guidance. Tools return plain text errors (e.g., 'Could not find coordinates for city') without recovery hints. LLM cannot determine if error is retryable, user-fixable, or fatal.