Loading ToolBench
A code-first evaluation framework for testing LLM agents' ability to use MCP tools
Single tool 'intermediate_speculations' has a reasonable description (89 chars) but critically lacks a complete input schema. The schema shows only a 'thought' parameter with type and description, but no formal JSON Schema structure is visible in the source code. The tool appears to be a read-only utility for agent introspection, not a primary domain tool. No output schema is documented. The codebase is an evaluation framework for testing LLM agents' MCP tool usage, not a production MCP server with rich tool definitions. Tool naming is acceptable but generic ('intermediate_speculations' lacks a clear action verb like 'record_' or 'log_'). No evidence of error handling, validation, or recovery guidance.
Record intermediate speculations. This function is intended to use by AI agents to help them better understand current context. It is not necessary to use it after each step.
Input schema lacks formal JSON Schema structure; only parameter name and type visible, no complete schema object with properties/required fields
No output schema documented; LLMs cannot infer what the tool returns or plan downstream operations
Tool name 'intermediate_speculations' lacks action verb; should be 'record_speculation', 'log_thought', or 'save_reasoning' to clarify intent
No error handling or recovery guidance; tool does not document failure modes or what to do if recording fails
Tool is marked READ_ONLY but description does not clarify whether it persists state or is ephemeral; no idempotency guarantee stated
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 48 | 2026-07-28+ | v2 |