release_playback

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

With no annotations, the description carries the full burden of behavioral disclosure. It explains the primary effect (channels returned to the stack below), which is valuable, but it does not mention any side effects, prerequisites, or error conditions (e.g., what happens if the playback is not running). The behavior is not fully transparent, but the core action is disclosed.

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, well-structured sentence that immediately states the action and its consequence. There is no wasted language or repetition, making it highly concise and easy to parse.

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 low complexity (one optional parameter, output schema present), the description provides sufficient coverage of purpose and core behavior. It could be more complete by explicitly addressing when to use this over pause_playback, but the existing context is adequate for this simple tool.

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 input schema already provides exhaustive documentation for the single parameter, including its default value (null) and the meaning of 0 (Master Playback). Since schema description coverage is 100%, the description adds nothing beyond the schema, matching the baseline of 3.

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 uses a specific verb ("releases") with a clear resource ("playback") and immediately distinguishes the action by explaining the consequence ("returning the channels it holds to the stack below"). This clearly differentiates it from sibling tools like pause_playback or view_playback.

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 clear context for when to use the tool: it describes the core behavior of releasing a playback and freeing its channels, implying it is appropriate when a playback no longer needs to hold channels. However, it does not explicitly state when not to use it or name alternatives, such as using pause_playback to temporarily hold channels.

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