get_hot_topics

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

With no annotations provided, the description carries full burden and does well by explaining the ranking logic ('engagement metrics like recent replies, views, and likes'), pagination behavior, and response interpretation. It doesn't mention rate limits or authentication needs, but covers core behavioral aspects adequately.

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 well-structured with clear sections (purpose, usage guidelines, parameters, returns, examples), front-loaded with the core purpose, and every sentence adds value without redundancy. It's appropriately sized for the tool's complexity.

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 tool's moderate complexity, no annotations, but with output schema (implied by 'Returns a list of TopicSummary objects'), the description provides complete context: clear purpose, usage guidelines, parameter explanation, return format details, and practical interpretation examples, covering all necessary aspects.

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 100%, so the baseline is 3. The description adds minimal value beyond the schema by clarifying 'Use page=1 to get more topics', but doesn't provide additional semantic context about parameter behavior or constraints.

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 purpose with specific verbs ('fetch trending/hot topics') and resource ('from USCardForum'), distinguishing it from siblings like get_top_topics, get_new_topics, or get_categories by specifying it's based on current engagement metrics.

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 explicitly provides usage scenarios ('See what the community is currently discussing', 'Find breaking news', 'Discover popular ongoing discussions') and distinguishes it from alternatives by noting the returned data can be used with get_topic_posts, offering clear guidance on when to use this tool.

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