get_company_fundamentals

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. It mentions 'current' and 'available' but does not clarify whether as_of_date supports historical lookbacks, what data sources are used, how often data updates, or what output shape to expect. The behavioral details are minimal.

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 front-loaded sentence with no wasted words, and the core action and scope are immediately visible. Its brevity is a strength, though it sacrifices necessary detail.

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 tool with no annotations, no output schema, and undocumented parameters, the description is too thin. It gives enough to know the general purpose but not enough to call the tool correctly with confidence, especially given the ambiguity versus get_financial_statement.

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%, and the description does not explain the ticker or as_of_date parameters. 'A-share or US equity' hints at ticker format but does not specify expected ticker symbols, and as_of_date semantics are entirely absent.

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 uses a specific verb ('Get'), resource ('current valuation and available fundamentals'), and scope ('A-share or US equity'), which clearly identifies the tool's domain. However, it does not explicitly distinguish itself from the sibling get_financial_statement, which could plausibly overlap with 'fundamentals'.

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?

There is no guidance on when to use this tool versus alternatives such as get_financial_statement or get_stock_prices. The description only states what the tool does, leaving the selection decision entirely to the agent.

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