pause

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

With no annotations, the description must disclose behavioral traits. It only states the action without describing side effects, reversibility, or state requirements. For instance, it does not say what happens if the player is already paused or if playback is stopped. This is a significant gap for a state-changing tool.

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 a single concise sentence, which is efficient, but it lacks any additional structure or information that could be included without verbosity. It is not overlong, but it is under-specified, so it earns a middle 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 simple nature of the tool (one parameter) and the presence of an output schema, the description is barely adequate. It does not mention how to identify the player, what happens if the player is unavailable, or any error conditions. For an agent to use it correctly, it would need to rely on the parameter name and the tool's name, which is insufficient.

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 schema defines a single 'player' parameter but the description adds no explanation of its format or how to obtain a valid player ID. Since schema description coverage is 0%, the description should compensate, but it merely repeats 'on a player' without clarifying the parameter semantics.

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 states a clear verb ('Pause') and resource ('playback on a player'), which distinguishes it from sibling transport controls like play, stop, and skip. It is unambiguous about the action, so an agent knows exactly what the tool does.

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 does not mention prerequisites (e.g., a playing player), nor does it contrast with stop or skip. An agent would have to infer the appropriate context from the tool name alone.

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