get_channel_videos

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

No annotations exist, so the description carries the full burden. It usefully discloses that the tool is paginated and charges 1 credit per page, which directly impacts whether an agent should invoke it. There is no contradiction with annotations.

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, informative sentences with no filler. The core behavior is stated first, and the credit-cost warning is a valuable standalone sentence.

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 rich input schema, existing output schema, and the explicit pagination and cost disclosure, the description is complete enough for an agent to select and invoke the tool correctly. First-page and continuation usage is documented in the schema.

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 channel is required for the first page and continuation is for the next page. The main description adds no parameter-specific meaning beyond the pagination hint, so the baseline applies.

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 names a specific verb ('list') and resource ('all videos from a YouTube channel'), and 'Paginated' signals the batching behavior. This clearly distinguishes it from sibling tools like get_channel_latest or get_playlist_videos.

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 makes the use case clear: pagated full-channel video retrieval, with a credit cost per page. The schema reinforces the first-page/continuation flow, but the description itself does not explicitly name alternatives or exclusion conditions.

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