reddit_read

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

No annotations are provided, so the description must disclose behavioral traits. It does not explicitly confirm read-only safety, mention authentication requirements (though 'access_token' is required), or describe pagination, rate limits, or sorting behavior. The word 'Read' implies non-destructive action, but this is not explicit.

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 highly concise at one sentence, front-loading the purpose. However, it is so brief that it sacrifices completeness. Every word earns its place, but the structure lacks supporting details.

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?

With 6 parameters (2 required), no output schema, and no behavioral context, the description is incomplete. It fails to explain pagination (after, limit), sorting, time filters, or what the return format looks like. More context is needed for effective use.

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 only 33% (only 'sort' and 't' have descriptions). The description adds no information about parameters, failing to compensate for the low coverage. Agent would need to infer meaning from parameter names alone.

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 'Read posts from a Reddit subreddit' clearly states the tool fetches posts from a specific subreddit. It is specific enough to convey the core function, but does not differentiate from sibling tools like reddit_search, which might also return 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?

No guidance is provided on when to use this tool versus alternatives (e.g., reddit_search, reddit_post). There is no mention of prerequisites, context, or scenarios where this tool is appropriate.

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