stock_snapshot_latest

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

With no annotations provided, the description carries the burden of behavioral disclosure. It discloses a key trait: the data is frozen, not real-time, and specifically the latest snapshot. This helps set expectations about data freshness, which is critical for a research tool. It does not mention return format or side effects, but for a read operation this is acceptable.

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 a single sentence that immediately states the primary function and a critical caveat. Every word earns its place, and the structure is optimally front-loaded. There is no wasted text or repetition.

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, parameterless read tool, the description is sufficiently complete. It tells the agent what it does (reads latest frozen snapshot) and its key limitation (not real-time). With no output schema required, this is adequate for an agent to select and invoke 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?

The tool has zero parameters, and the schema confirms this with full coverage. Per the baseline for zero-parameter tools, the description need not add parameter details. The description adds no param-specific meaning, but this is not a deficiency given the absence of parameters.

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 '读取最新冻结的股票研究快照' (reads the latest frozen stock research snapshot), specifying a concrete action (read) and resource (snapshot). It also distinguishes itself from real-time market tools by explicitly noting it does not represent real-time market status, which separates it from potential siblings.

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 provides clear context that this tool returns a frozen snapshot, not real-time data, implying it should be used when historical or non-real-time data is acceptable. However, it does not explicitly name alternative tools or state when not to use it, though the 'not real-time' caveat serves as an implied exclusion.

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