set_item_mute

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

With no annotations, the description carries full behavioral burden but only discloses the mute/unmute direction for the 'mute' parameter. It does not describe side effects, reversibility, persistence, permissions, or any error behavior. While it clarifies the boolean toggle, this is minimal for a mutation 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 appropriately sized and front-loads the core purpose in a single sentence. The 'Args:' section adds minimal, non-redundant detail for the mute parameter. It is efficient with no wasted words, though the formatting is slightly bare.

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 lack of annotations, no output schema, and 0% schema description coverage for three required parameters, the description is notably incomplete. It omits any explanation of 'track_index' and 'item_index' and does not address return values or side effects. An agent would need to infer much from context.

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 0%, so the description must compensate. It explains only the 'mute' parameter's meaning (True to mute, False to unmute), but provides no semantics for 'track_index' and 'item_index' beyond their names. The description partially fills the gap for one of three parameters.

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 'Mute or unmute' and the target resource 'a media item'. It implicitly distinguishes from the sibling 'set_track_mute' by specifying item-level scope, though it does not explicitly name or contrast with that sibling. The core action is 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 provides no guidance on when to use this tool versus alternatives, nor any prerequisites or context about conditions. It simply states the action and parameter meaning, leaving the agent to infer usage entirely from the name and schema.

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