playlists_insert

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

With no annotations provided, the description carries the full burden. It discloses quota cost (50 units) and OAuth requirement, which are important behavioral traits. It does not mention side effects or error behavior, but the essentials are covered.

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 unnecessary words. It packs all essential information efficiently without being verbose.

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 schema has parameter descriptions and the tool description mentions quota and auth, the tool is reasonably complete. There is no output schema to specify return values, so not mentioning them is acceptable. It covers the core context needed for usage.

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 parameter schema already provides descriptions for all 7 parameters, so coverage is high. The tool description adds 'requires title' which is redundant with the required flag, and provides no additional meaning beyond 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?

The description clearly states 'Create a YouTube playlist' which is a specific action with a specific resource. It distinguishes from sibling tools like update, delete, and list by using 'create' as the verb.

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 implies use this tool when creating a new playlist, and mentions requirements (title, OAuth). It does not explicitly name alternative tools, but the verb 'create' is unambiguous enough for typical use cases.

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