get_balance_sheet

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool retrieves data ('Get'), implying a read-only operation, but doesn't disclose any behavioral traits such as data freshness, rate limits, authentication needs, error handling, or what happens with invalid symbols. For a data retrieval tool with zero annotation coverage, this is a significant gap.

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 appropriately sized and front-loaded: the first sentence states the purpose clearly, followed by parameter details. There's no wasted text, and the structure (purpose then args) is logical. However, the formatting with indentation and quotes might slightly hinder readability in some contexts.

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 (financial data retrieval), no annotations, and an output schema (which reduces the need to describe return values), the description is partially complete. It covers the purpose and parameter semantics adequately but lacks usage guidelines and behavioral transparency. For a tool with siblings and no annotations, it should do more to guide the agent.

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 description adds meaningful semantics beyond the input schema. The schema has 0% description coverage and only defines 'symbol' as a string. The description provides a concrete example ('e.g., AAPL, MSFT'), clarifying that it refers to stock symbols and giving typical values. With 1 parameter and low schema coverage, this compensates well, though it doesn't specify format constraints (e.g., case sensitivity).

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: 'Get company balance sheet data' with a specific verb ('Get') and resource ('balance sheet data'). It distinguishes from siblings like get_income_statement or get_cash_flow by specifying the financial statement type. However, it doesn't explicitly differentiate from all siblings (e.g., get_company_overview might also include balance sheet data).

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 no guidance on when to use this tool versus alternatives. It doesn't mention when to choose get_balance_sheet over get_income_statement or get_company_overview, nor does it specify prerequisites or exclusions. The only contextual hint is the parameter description for 'symbol', which doesn't constitute usage guidelines.

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