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

With no annotations, the description carries the full behavioral burden. It discloses what the operation returns (video counts, aliases, content-type distribution, audience labels), which is genuinely useful given there is no output schema, but it says nothing about read-only safety, pagination, or result-set limits.

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 dense sentences with the resource and scope front-loaded and the return contents trailing. No filler, though it could be slightly tighter.

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?

For a filtering list tool with no required parameters and no output schema, the description adequately covers what the tool returns and the grouping concept. The main gap is the absence of alternative-tool routing, which is minor for a straightforward enumerator.

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 67%, so most parameters are documented in the schema itself (group, minVideos have descriptions; limit does not). The description adds no syntax or filtering semantics beyond what the schema provides, so the baseline 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?

States a specific verb (List) and resource (canonical topic clusters) scoped to the BuildFeed archive, and enumerates example families, which makes it distinguishable from list_categories and list_channels. It never names those siblings explicitly, but the resource noun does the differentiation work.

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?

There is no statement of when to use this tool versus list_categories or list_channels, no prerequisites, and no exclusion criteria. The only context offered is the scope phrase 'full BuildFeed archive,' which is not routing guidance.

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