pause

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states the action without explaining side effects, such as what happens if no active device exists, whether the device_id parameter overrides the active device, or what the response looks like. The description is minimal and does not add transparency beyond the obvious.

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 sentence with no redundant words. It is front-loaded with the core action and resource, making it easy to scan and understand quickly.

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?

For a simple tool with one optional parameter and no output schema, the description is adequate but not rich. It does not clarify edge cases like failure modes or what 'active device' means, which might be important for an agent invoking it correctly. Given no annotations, more context would be helpful, but the simplicity keeps it at a baseline level.

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 covers 100% of the parameter (device_id with description 'Target device ID'), so the description does not need to add much. However, the description does not elaborate on how device_id affects behavior (e.g., pausing a specific device vs. the active one). Since schema coverage is high, the baseline of 3 is appropriate.

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 verb 'Pause' and the resource 'playback on the active device', which distinguishes it from siblings like play, skip_next, and seek. It is specific and unambiguous for a simple command.

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 implies when to use it (when the user wants to pause playback) but does not explicitly mention alternatives or exclusionary conditions, such as 'use play to resume' or behavior when no device is active. It provides clear context but no direct comparison to others.

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