reddit_subreddit_posts

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

No annotations are provided, so the description carries the burden. It discloses a useful behavioral trait about handling 503 errors via the Retry-After header and notes that posts are 'normalized public posts'. This adds context beyond what the schema provides, though it does not cover all behaviors like pagination mechanics.

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 (three sentences), front-loaded with the primary action, and every sentence adds value—purpose, return summary, and error handling. No wordiness or 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?

The description clearly states the tool's purpose and error behavior, but with no output schema, it leaves gaps about the response format and how to use pagination tokens (e.g., where to obtain 'after'). The parameter schema covers options but not response semantics.

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 the parameters are fully documented in the schema. The description does not add additional parameter semantics beyond what the schema already states, so a baseline of 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?

The description uses the specific verb 'List' with the resource 'Reddit subreddit posts' and clarifies it returns posts from a specific subreddit. This clearly differentiates from sibling tools like reddit_search or reddit_domain_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 implies usage for listing posts from a given subreddit but provides no explicit guidance on when to choose this over alternatives. It does mention handling a 503 Retry-After response, which is a usage note but not about tool selection.

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