pause_playback

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 only states the basic effect, without disclosing error behavior, idempotency, or side effects on playback status. For a mutation-like control tool, this is a significant gap.

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 clear sentence with zero wasted words. It is front-loaded with the action and effectively communicates the core purpose.

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 tool's simplicity (one optional parameter, output schema present), the description is adequate for the core function but lacks edge-case context (e.g., what happens if no fade is running). It does not need to explain return values due to the output schema, so this is a reasonable middle ground.

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 100%, and the schema's description of the 'playback' parameter is detailed (e.g., 'Omit to pause the console's current playback'). The tool description adds no extra parameter information, so 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 'Pauses a running fade' clearly identifies the action (pauses) and the resource (a running fade). This distinguishes it from sibling tools like release_playback (which releases) and fire_cue (which initiates cues). The word 'fade' adds specificity beyond the tool name, making its function unambiguous.

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 usage when a fade is running, but it does not explicitly state when to use this tool versus alternatives (e.g., release_playback), nor does it mention what happens if no fade is running. This falls between 'implied usage' and 'no guidance'.

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