reddit_user_comments

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

No annotations are provided, so the description bears full responsibility for disclosing behavioral traits. It only states 'Returns flat public comment entries' without mentioning pagination behavior, rate limits, data freshness, or the fact that only public comments are returned. Key behavioral aspects are left unspecified.

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 short with two sentences. The first sentence establishes the core purpose; the second repeats 'public' and clarifies the source. While efficient, the second sentence adds minor redundancy. Overall, it is well-structured and front-loaded.

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?

Despite full schema coverage, the description lacks completeness. It does not mention pagination (though schema includes 'after' token), the clamping behavior of 'limit', or what 'flat' means structurally (e.g., no nested replies). An agent would need to infer usage from the schema alone, reducing practicality.

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%, placing the baseline at 3. The description adds no additional information about parameters beyond what the schema already provides (e.g., after as a pagination token, limit defaults and clamping, username format). It does not enhance understanding of parameter usage or constraints.

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 clearly identifies the resource 'Reddit user comments'. It further clarifies the scope with 'flat public comment entries from a public Reddit user's comments feed', effectively distinguishing it from sibling tools like reddit_comments and reddit_user_posts.

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 offers no guidance on when to use this tool versus alternatives. For example, it does not mention that reddit_comments should be used for comments on specific posts or that reddit_user_posts lists user posts. The agent receives no context about appropriate usage scenarios.

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