listen

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

With no annotations, the description carries full responsibility for disclosing behavior. 'There is nothing here to hear' vaguely implies no output or no content, but does not state side effects, return values, errors, or what happens on success. This is nearly zero behavioral disclosure.

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 extremely short and front-loaded, but it suffers from under-specification rather than being appropriately concise. It uses words without carrying essential meaning, so the brevity is not an asset.

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?

With no output schema, no annotations, and no behavioral detail, the description is entirely insufficient. An agent cannot determine what the tool returns, what side effects occur, or what constitutes a successful call.

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?

The tool has 0 parameters and the schema coverage is 100% by virtue of being empty. Per the 0-parameter baseline of 4, the description does not need to explain parameters since none exist.

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 'Listen. There is nothing here to hear.' is poetic and tautological, restating the tool name without defining a concrete function or resource. It provides no actionable information about what the tool does, and does not distinguish it from siblings like look or touch.

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?

There is no guidance on when to use this tool versus its siblings. No context, conditions, alternatives, or exclusions are mentioned, leaving an agent to guess whether or how this tool should be invoked.

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