reddit_post

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

With no annotations, the description carries the full burden and does so admirably. It discloses that the default mode uses RSS, the enhanced mode uses the anonymous HTML page, credit costs, that Reddit fuzzes voting data, and that share/repost/view counts are not exposed anonymously.

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?

Three sentences deliver the essential information with no wasted words. The description is front-loaded with the primary purpose, followed by mode-specific details and limitations.

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 no output schema, the description provides sufficient detail about both modes, the returned metrics, and known limitations. It covers the tool's complexity and gives the agent enough context to invoke it correctly and set expectations.

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 coverage is 100%, so the baseline is 3. The description adds meaningful semantics beyond the schema by explaining that include_metrics=true triggers a different content source and returns specific metrics (net score, upvote ratio, comment count, award count, estimated upvote/downvote totals) for 3 credits.

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 gets a Reddit post and returns a normalized public Reddit post. It distinguishes itself from related sibling tools like reddit_comments and reddit_search by focusing on fetching a single post by ID.

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 explains when to use the default 1-credit RSS mode versus setting include_metrics=true for richer metrics. It does not explicitly mention alternatives or exclusions, but the context of two distinct modes provides clear usage guidance.

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