get_topic_timeline

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

With no annotations at all, the description must carry the transparency burden. It does add behavioral nuance: results are time-ordered and the newest entry is only a 'recent candidate', not a final truth. It does not mention permissions, side effects, or return behavior, but this appears to be a read-only timeline tool and an output schema exists.

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 with the core behavior, followed by one interpretive caveat. It avoids unnecessary words, though the mixed-language phrase 'recent 候选' is somewhat cryptic and could be more clearly phrased.

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 simple two-parameter tool with an output schema, the description covers the core purpose and a key behavioral nuance. It is incomplete because the 'limit' parameter is unaddressed and the 'recent candidate' concept is left unexplained, but the output schema reduces the need to describe return values in detail.

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 explain the parameters. It indirectly explains 'topic' through '同一主题', but it never explains the 'limit' parameter, its default, or how it affects the returned timeline. This leaves the optional parameter semantically undocumented.

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 states a specific verb and resource: it chronologically organizes the historical expressions of the same topic. This is clearly distinct from search or source-reading siblings, though it does not explicitly name any alternative or contrast with them.

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 chronological 'same topic' framing implies when this tool is appropriate, and the caveat about the latest item being only a 'recent candidate' hints at how to interpret results. However, it does not explicitly state when not to use it or which sibling tool to prefer instead.

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