List Sections

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is fully covered by structured data. The description's one added fact is the quota cost ('1 unit'), which is genuinely useful operational context not in the annotations. It says nothing further about auth requirements, scope of returned sections, or pagination, so with the lower bar set by annotations this lands at 3.

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?

It is short, front-loaded, and free of filler, and the quota note is clearly separated. However the lead sentence is a noun fragment rather than a complete statement of the action, so brevity here reads as under-specification rather than disciplined concision.

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?

Placeholder.

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% and both parameters (channel, my_channel) are fully documented in the schema, including the 'omit for your own channel' defaults. The description adds no syntax or format detail beyond that, so the baseline of 3 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 fragment 'The sections on a channel's home page' identifies the resource and scopes it (home-page sections rather than playlist sections), which is more than the name alone conveys. But it supplies no verb at all, so the agent must infer that this is a retrieval tool, and it never distinguishes itself from the add_section/update_section/delete_section siblings. Vague-but-identifiable purpose.

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 when-to-use statement, no prerequisites, and no mention of any alternative. The only guidance-like content is 'Quota: 1 unit', which is a cost note, not usage direction. Nothing tells the agent why it would call this instead of get_channel or get_playlists.

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