Stop tuner

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

Annotations already say readOnlyHint=false and destructiveHint=false, consistent with the description's write to the device endpoint. The description adds real context beyond the annotations: it discloses the concrete side effect (channel set to 'none' on the tuner), so the agent knows exactly what device state changes. It does not say what happens if the tuner is already idle or whether an in-progress recording/stream is interrupted.

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?

A single compact sentence that front-loads the concrete operation and follows with its plain-language effect. No filler, nothing to trim.

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 one-parameter mutation with no output schema, the description covers purpose and mechanism but omits the valid tuner range and edge-case behavior. Adequate to call correctly in the common case, incomplete for anything else.

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 single 'tuner' parameter has 0% schema description coverage, so the description must carry the load. The '/tuner<n>' notation does imply the argument is the tuner index substituted into the path, but no valid range, indexing base, or error behavior for an out-of-range tuner is given.

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?

States a specific verb effect ('release the tuner') and the exact underlying operation ('Set /tuner<n>/channel none'), so the agent knows precisely what it does. It does not contrast with the obvious sibling hdhomerun_set_channel, which can also target a tuner, so sibling differentiation is left to inference.

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?

'Release the tuner' implies the when (freeing a tuner you no longer need), but there is no explicit when/when-not guidance and no named alternative such as hdhomerun_set_channel with channel 'none'. Usage is inferable rather than stated.

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