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

Annotations already cover the read-only, open-world safety profile. The description adds real value beyond them by disclosing that only Kickstarter's server-rendered initial batch is returned and that total_count reports the true total, and by enumerating the comment fields. The lack of any guidance on retrieving subsequent pages is the only gap.

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?

Front-loads the core operation and scope in the first clause, then covers return fields and parameter examples. Three sentences, each doing work, with no filler.

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 two-parameter read tool with an output schema and safety annotations, the description covers scope, the pagination caveat, and total_count semantics. Return values are described even though the output schema already exists, so nothing an agent needs is missing.

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 both creator and slug are fully documented in the schema. The description repeats the path-segment explanation with the same example URL already present in the schema, adding no new syntax or format meaning. 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 and resource ('Get the first page of one Kickstarter campaign's comments feed') and scopes it precisely to a single page. It is clearly distinct from siblings like kickstarter_updates and kickstarter_project, though it doesn't name them explicitly.

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 'first page only' framing implies when this is appropriate and hints at a pagination limitation, but it never states when to prefer it over kickstarter_updates or kickstarter_project, nor how to get older comments. Usage is implied rather than directed.

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