reddit_user_comments

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

With no annotations, the description carries the burden of behavioral disclosure. It adds useful details such as 'flat public comment entries' and specific handling instructions for a 503 throttling response (Retry-After), which goes beyond the schema's parameter descriptions.

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 concise: two sentences that efficiently state the purpose, return shape, and an important error-handling note. Every sentence provides value without redundancy.

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 simple list endpoint with schemas that fully document its parameters, the description provides sufficient context: it states what is returned, the resource being accessed, and a likely error condition. It lacks usage guidance, but this is a secondary concern given the low complexity.

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 schema has 100% parameter description coverage, so the description does not need to add parameter details. The description does not contribute any extra parameter semantics beyond what the schema already provides, resulting in the baseline score.

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 clearly states the tool lists Reddit user comments, using a specific verb ('List') and resource ('Reddit user comments'). It further distinguishes from sibling tools by specifying 'from a public Reddit user's comments feed', making its scope clear.

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 provides no guidance on when to use this tool versus alternatives like reddit_subreddit_comments or reddit_comments. It only describes the tool's functionality without contextual placement or exclusions.

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