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

With no annotations, the description carries the behavioral burden itself. It adds useful behavioral context such as returning histories beyond the current ANAF window and listing the indicator categories. However, it omits response shape, pagination, limits, or error behavior, which remains a gap for a tool with no output schema.

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 core instruction is concise and meaningful, but the large opening keyword block adds significant noise and delays the actual description. Several keywords repeat what the tool name already makes obvious. The structure is not front-loaded for an agent trying to decide when to use the tool.

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 read tool with fully described parameters, the description is adequate: it states what is returned, the optional filter, the input identifier, and the relevant sibling for a broader request. Missing output-format details are minor here.

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 restates that year is an optional filter and taxId is the Romanian CUI, but adds little beyond what the schema already documents.

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 ('Returnează') and identifies the exact resource: financial indicators by fiscal year for a company identified by CUI. It enumerates the specific indicators returned and distinguishes itself from the sibling get_company by noting when get_company is preferable.

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 clearly implies its primary use case: retrieving financial indicators. It explicitly advises using get_company with include balanceSheets when the company profile is also needed, providing a concrete alternative and a condition for choosing it. It does not spell out exclusions for other siblings, but the guidance is clear enough.

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