spotify_shuffle

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 states a mutation action but omits whether an active device/session is required, whether the change applies globally or to a specific device, permission/Premium constraints, and any rate limits or response behavior.

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, front-loaded sentence with zero wasted words. The action and target are immediately clear.

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 low-complexity, 2-parameter toggle with full schema coverage and no output schema, the description is minimally adequate. However, with no annotations and no device/prerequisite context, an agent could still call it in an invalid playback state without warning.

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%: the schema already explains that 'state' toggles shuffle and that 'device_id' is optional. The description adds no extra meaning to either parameter, so the baseline score 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 gives a clear verb pair ('Enable or disable') and a specific resource ('shuffle mode'), so the agent knows exactly what the tool manipulates. It does not explicitly differentiate itself from adjacent playback-state siblings like spotify_repeat, but the resource is unambiguous enough to stand apart.

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?

There is no when-to-use guidance, no mention of prerequisites such as an active playback session or a required device, and no alternatives. The only implied usage is tautological with the tool name.

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