create_playlist

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the action ('Create a new playlist') without mentioning side effects, required permissions, whether the playlist is created empty, or what the tool returns. As a mutation tool with no annotation coverage, this is a significant gap in transparency.

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, concise sentence with no filler words. It communicates the essential purpose immediately. The structure is front-loaded with the action and resource, and every word earns its place.

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 creation tool, the description covers the core action and scope. However, it lacks any mention of behavioral details such as return value, authentication requirements, or that the playlist is created empty. Without an output schema, agents are left guessing about the response format. Given the absence of annotations, more context would be expected.

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%, so all four parameters (name, public, description, collaborative) are already documented in the schema. The description adds no additional parameter-level meaning beyond the overall purpose. Baseline 3 is appropriate because the schema handles the parameter documentation.

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 ('Create') and resource ('playlist'), and clarifies scope ('for the current user'). This clearly distinguishes it from sibling tools like update_playlist, add_to_playlist, or remove_from_playlist. No ambiguity about the operation.

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 clearly indicates the tool's purpose—creating a new playlist—which implies it is for new creations, not modifications. However, it does not explicitly name alternatives or state when not to use it (e.g., 'use update_playlist to modify an existing playlist'). The context is clear enough, but exclusions are not spelled out.

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