get_post_comments

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

With no annotations provided, the description fully discloses behavioral traits: it is read-only, uses RSS, returns a flat comment list, has no threading, no upvote scores, and a ~25 comment limit. This gives the agent clear expectations for behavior and limitations.

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 plus a brief limitations list), front-loaded with the primary action, and every sentence adds value—purpose, input, output format, limitations, and alternative tool. No unnecessary words.

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?

Given the tool's low complexity (2 parameters, no output schema), the description covers all necessary aspects: purpose, required input, result format, limitations, and alternative. It is complete for effective agent decision-making.

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 coverage is 100%, so the baseline is 3. The description adds marginal value by restating the parameter purposes and mentioning the limit constraint (1-25, default 25) already covered in the schema. No new semantic information beyond the schema is provided.

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 specifies the tool's function: reading user comments on a Reddit post via RSS without an API key. It states the required input (post URL/permalink) and distinguishes from sibling tools (browse_subreddit, search_reddit) by focusing on comments for a specific post.

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 context on when to use the tool (simple comments without auth) and when not to (if threaded comments or scores are needed, use OAuth). It implicitly differentiates from siblings by focusing on single-post comments. However, it does not explicitly list exclusions or prerequisites.

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