reddit_subreddit_comments

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

With no annotations, the description must disclose behavioral traits fully. It only notes that comments are 'public' and 'flat', lacking details on pagination behavior, rate limits, authentication, or error handling. This is insufficient for a mutation-free read tool.

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 extremely concise at two sentences and 15 words, with no redundant information. It front-loads the purpose and is efficient.

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 having no output schema and three parameters, the description omits important context like the structure of returned comments, typical fields, and error scenarios. It is not complete enough for an agent to fully understand what to expect.

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 covers all three parameters with descriptions (100% coverage), so the baseline is 3. The description does not add extra meaning beyond what the schema already provides, such as clarifying the use of 'after' or 'limit'.

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 subreddit comments, specifying it returns flat public comment entries from a subreddit's latest-comments feed. It uses a specific verb ('List') and resource ('Reddit subreddit comments'), and the context distinguishes it from general comment tools like 'reddit_comments'.

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 guidance is provided on when to use this tool versus alternatives such as 'reddit_comments' or 'reddit_search'. There is no mention of prerequisites, context, or exclusions.

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