track_set_properties

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

With no annotations, the description carries the full burden. It correctly discloses that the operation mutates a track and that unmentioned properties remain unchanged. It does not address error behavior, return value, or side effects, but the core mutating behavior is clearly stated.

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 compact and front-loaded: a two-sentence overview states the operation and its partial-update behavior, followed by a clean Args list. Each line adds essential meaning without repetition or fluff.

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 setter with one required parameter and no nested objects, the description covers invocation details well: allowed values, units, and partial-update semantics. Minor omissions like behavior for an invalid track index or the return response are not critical for calling the tool correctly.

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%, and the Args block fully compensates: it translates track as 0-based, gives gain a range in dB, defines pan as left-to-right with -1.0 to 1.0, and explains name, mute, and solo. This is exactly the semantic information missing from the schema.

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 ('Set'), resource ('properties of a track'), and selection criterion ('by index'), which clearly distinguishes it from single-purpose track tools like track_mute or track_set_color. The scope is precise and actionable.

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 partial-update instruction ('Only the properties you pass are changed - omit any you don't want to touch') is valuable usage guidance. However, there is no explicit comparison to sibling tools such as track_mute, track_ute_all, or track_set_color, so the agent must infer when to choose this general setter instead.

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