reddit_rising

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

With no annotations, the description carries the burden of behavioral disclosure. 'Get' makes clear this is a read-only operation, and the parameter meanings are given. However, it does not explain what 'rising' means in Reddit ranking, mention possible errors like invalid subreddits, or describe pagination/rate-limit behavior. It is adequate for a safe read operation but not rich.

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 compact and front-loaded: a one-sentence summary followed by clear parameter explanations. There is no filler or redundant restatement of the tool name. Every sentence contributes useful information.

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 low complexity, the presence of an output schema, and clear parameter documentation, this is nearly complete for invoking the tool correctly. The main missing piece is cross-tool guidance relative to the sibling endpoints, which is already penalized under usage guidelines. For the tool's own call contract, the description is sufficient.

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 0%, so the description must compensate, and it does explain both parameters. 'Subreddit name (without r/)' adds the important naming convention not present in the schema, and 'Posts to fetch' clarifies limit. It lacks constraints like min/max values, but the core semantics are covered.

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's function: 'Get rising/trending posts from a subreddit.' It names the resource (subreddit) and the specific post ordering (rising/trending), which separates it in meaning from reddit_hot, reddit_top, and reddit_new. It does not explicitly contrast itself with those siblings, so it stops short of a perfect 5.

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 no guidance on when to use reddit_rising versus the sibling tools such as reddit_hot, reddit_top, or reddit_new. There is no mention of user intent, alternatives, or conditions under which this tool is the right choice. Usage is only weakly implied by the word 'rising'.

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