MCPEmulate

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden. It mentions pagination and that entries include 'disassembled instruction details,' which adds some behavioral context. However, it lacks critical details like whether this is a read-only operation, potential rate limits, error conditions, or the format of returned data. For a tool with no annotations, this is insufficient.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured and concise, with a clear purpose statement followed by parameter explanations. Each sentence adds value without redundancy. However, the parameter section could be slightly more integrated into the flow, preventing a perfect score.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity (3 parameters, no annotations, no output schema), the description is incomplete. It lacks information on return values, error handling, and behavioral nuances like pagination mechanics or data format. For a tool in a debugging/emulation context with many siblings, more context is needed to ensure proper use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the schema provides no parameter descriptions. The description compensates by explaining each parameter: 'session_id: The session ID.', 'offset: Start index (default 0).', 'limit: Max entries to return (default 100).' This adds meaningful semantics beyond the schema, but it doesn't cover constraints or examples, keeping it at a baseline level.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Get trace entries with pagination. Each entry includes disassembled instruction details.' It specifies the verb ('Get') and resource ('trace entries') with additional context about content. However, it doesn't explicitly differentiate from sibling tools like 'diff_trace' or 'save_trace', which prevents a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'diff_trace' (for comparing traces) or 'save_trace' (for exporting), nor does it specify prerequisites or contexts for usage. This leaves the agent without clear selection criteria.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.