ncloud_vodstation_list_channels

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

The description adds that the operation uses pagination, which is useful beyond the readOnlyHint annotation. However, it does not disclose return format, ordering, defaults, or other behavioral details, so it provides minimal extra context beyond the annotation.

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 that front-loads the core purpose and includes the key capability (pagination). No wasted words.

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?

The tool is a simple list operation with only two optional pagination parameters, and the description plus annotations cover its safety profile. However, since there is no output schema, the description could have mentioned the return structure (e.g., channel list) to be fully complete, but the name and purpose make it largely inferable.

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 already documents both parameters (pageNo and pageSizeNo) with descriptions and defaults, achieving 100% coverage. The description's mention of pagination adds little to what the schema already conveys, so a baseline score of 3 is appropriate.

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 ('List') and resource ('VOD Station streaming channels'), and clearly states scope ('all') and pagination, distinguishing it from sibling tools like ncloud_vodstation_get_channel.

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 implies the tool is for listing all channels, which is a distinct context from the single-channel retrieval of get_channel. However, it does not explicitly name alternatives or exclude scenarios, so it falls short of a score 5.

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