get_subreddit_info

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

No annotations are provided, so the description carries the full burden. It implies a read-only fetch but never states it, nor does it mention authentication requirements, rate limits, or whether the subreddit parameter accepts names without the r/ prefix. For a tool with zero annotation coverage, this is a significant gap.

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?

A single compact sentence that front-loads the verb and resource and lists the return fields efficiently. Every word earns its place with no filler.

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?

For a tool with no annotations, no output schema, and 0% parameter description coverage, the description is too thin. It should at least clarify the subreddit parameter format and confirm the read-only nature. The listed metadata fields help but do not cover what an agent needs to call it correctly.

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. It says nothing about the single 'subreddit' parameter—not its format (name vs. full path), not whether it is case-sensitive, and not whether a missing subreddit errors. The schema documents only type and minLength, leaving the description to fill a gap it does not fill.

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?

States a specific verb (Get) and resource (subreddit metadata) and enumerates what metadata is returned (subscribers, rules, description, flair). Clearly distinguishable from siblings like get_subreddit_posts or get_comment_thread, though it doesn't explicitly name what it is not.

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 when-to-use guidance, no exclusions, and no mention of alternatives. An agent must infer that this is for subreddit-level metadata versus post-level data. The sibling list is rich but the description offers no routing help.

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