get_playlist_items

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

No annotations are provided, so the description carries the full behavioral disclosure burden. It mentions the returned fields but overstates the result set as 'all videos' while the schema caps requests at 50 with a default of 25, and it says nothing about pagination, auth, or error 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?

Two short sentences, with the core action in the first and return details in the second. No filler, and a reasonable amount of information is packed into a compact structure.

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?

With no output schema and no annotations, the description does explain the main return values: playlist info and video titles, channels, and positions. However, it leaves out the bounded result behavior from max_results and any pagination or limit caveats, so an agent may misjudge the actual response size.

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 the schema already documents url and max_results. The description adds no parameter-specific meaning such as accepted URL formats or the meaning of max_results, but it also does not need to compensate heavily because the schema is complete.

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 the action (get videos) and resource (YouTube playlist), and it is inherently distinct from siblings like get_channel_videos or search_videos. However, claiming 'all videos' is somewhat misleading given the max_results parameter defaults to 25, so the stated scope is not fully accurate.

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 this tool is for retrieving videos from a specific playlist, which gives the agent basic context. It does not provide explicit when-to-use or when-not-to-use guidance, nor does it mention alternatives or exclusions relative to sibling tools.

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