Loading ToolBench
A simple server that determines battle winners based on type effectiveness and stats
The server has 4 tools with basic functional definitions and descriptions. All tools are named with clear action verbs (battle_, list_, get_, pokemon_). However, there are significant gaps in parameter documentation, output schema documentation, and error handling guidance. Descriptions are present but generic (average ~120 chars, below the 194 char production baseline). Parameters lack detailed type constraints and validation rules. The schema shows input parameters with basic descriptions but no documented output schemas or pagination support. Error handling returns error messages but lacks recovery guidance or categorization (retryable vs. fatal). The codebase is clean and the logic is sound, but falls short of production-grade tool quality standards.
Battle two Pokemon and determine the winner based on type effectiveness and stats.
Get the type effectiveness chart showing which types are effective against others.
List all available Pokemon in the database with their stats.
Get detailed information about a specific Pokemon.
No output schema documented for any tool. Tools return complex nested dictionaries but LLMs cannot see the structure in advance (e.g., battle_pokemon returns 'battle_result' containing pokemon1/pokemon2 sub-objects with specific fields like 'damage_to_opponent', 'turns_to_win'). This forces LLMs to infer structure from first execution or wastes tokens parsing unstructured output.
list_pokemon lacks pagination support. Tool returns all Pokemon in the database as a flat list, but no page/offset/limit parameters or cursor-based pagination. If the Pokemon database grows to hundreds or thousands, responses will bloat context windows and degrade LLM reasoning.
Parameter 'pokemon_name' in pokemon_info and pokemon1_name/pokemon2_name in battle_pokemon lack validation constraints in description. No mention of case sensitivity (though code does .lower().strip()), no list of valid Pokemon names, no guidance on what happens if a name is not found beyond a generic error dict.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-22 | F | 44 | 2026-07-28+ | v2 |
| 2026-03-09 | F | 0 | - | v1 |
Error responses for invalid Pokemon names are returned as a dict with an 'error' key (e.g., {'error': 'Pokemon not found'}), but descriptions do not explain this error format or guide the LLM on recovery. Should state 'If Pokemon not found, use list_pokemon() to see available names.'
Tool descriptions are too generic and do not state WHEN to call each tool or dependencies. E.g., get_type_chart says 'Get the type effectiveness chart' but does not explain when an agent should call it (e.g., before battle_pokemon to understand matchups). battle_pokemon does not mention that type effectiveness data is used in calculation.
get_type_chart returns the entire TYPE_EFFECTIVENESS dict (17 types × 5-15 matchups each = ~100+ lines). No documentation of the return structure. Response is verbose and requires LLM to parse manually. Should document output schema and consider returning a more compact, structured format.