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

With no annotations, the description carries the transparency burden. It clearly indicates a read-only balance query and the asset-level filter, but it does not mention authentication requirements, rate limits, or what happens for unsupported assets. For a simple read operation this is adequate but not comprehensive.

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 focused sentence that front-loads the verb and resource, includes the optional filtering behavior, and adds no redundant or filler content.

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 low complexity, fully documented parameters, and absence of an output schema, the description is nearly complete for selecting and invoking the tool. Minor omissions like response format or authentication setup do not prevent successful use, but they would add polish.

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 both parameters (exchange and asset) are already documented with their meanings and supported values. The description adds no substantial parameter semantics beyond paraphrasing the asset filter, matching the baseline for fully covered schemas.

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 and resource ('Get account balances') and clearly scopes the operation to all assets or a specific asset on a supported exchange. This distinguishes it from sibling tools like get_ticker or get_trades, which concern market data rather than account balances.

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 implies the tool is for checking balances and notes it works on supported exchanges, but it does not explicitly state when to use it versus alternatives or mention any prerequisites such as authentication. The usage context is inferable but not fully articulated.

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