reddit_subreddit_about

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

With no annotations provided, the description carries the full transparency burden. It discloses that subscriber counts, icons, and banners are omitted due to anonymous page limitations, and it explains the 503 Retry-After throttling behavior, adding meaningful context beyond the schema.

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 and front-loaded with the purpose in the first sentence. The second sentence is somewhat redundant with the first, but the overall length is appropriate and no information is wasted.

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 tool has no output schema, so the description is responsible for explaining return values. It mentions 'public metadata' and 'sample posts' but does not enumerate which metadata fields are returned, leaving a gap for agents expecting specific fields. The throttling guidance partially compensates.

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 already fully covers both parameters: subreddit includes format guidance and limit includes defaults and clamping. The description adds no parameter-specific details, so with high schema coverage the baseline score of 3 applies.

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 retrieves Reddit subreddit metadata, using a specific verb and resource. It also notes it returns sample posts, which somewhat distinguishes it from sibling tools focused on comments or posts, though no alternatives are named explicitly.

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 about what the tool returns and its anonymous-access limitations, but it does not explicitly state when to choose this tool over siblings like reddit_subreddit_posts or reddit_subreddit_comments. Usage is implied rather than directly guided.

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