create-playlist

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

Without annotations, the description carries the full burden of behavioral disclosure. It does mention the 50 quota unit cost, which is useful, but omits other important behaviors such as what the response contains, whether the operation is idempotent, or any side effects. This is limited transparency 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 exceptionally concise, with exactly two sentences: the first states the purpose, the second adds a critical operational detail (quota cost). No wasted words, and the purpose is front-loaded.

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 create tool with a well-documented schema, the description provides the core purpose and cost, but lacks information about the return value or post-creation behavior. Given there is no output schema, the agent would benefit from knowing what the tool returns, which is omitted. It is adequate but has clear gaps.

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 input schema has 100% parameter description coverage, with clear descriptions for title, description, and privacyStatus. The tool description adds no additional parameter-level meaning beyond the quota cost, which is not parameter-specific. Baseline 3 applies because the schema already documents all parameters effectively.

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 'Create a new playlist' is a clear, specific verb+resource statement that directly distinguishes this tool from siblings like update-playlist, delete-playlist, and list-playlists. It unambiguously identifies the tool's primary action.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, target users, or scenarios where create-playlist is preferred. The description does not help the agent decide between this and other playlist-related tools.

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