get_default_account_balance

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

No annotations are provided, so the description bears full responsibility for disclosing behavioral traits. The verb 'Get' implies a read-only operation, but the description does not state whether there are side effects, authentication requirements, rate limits, or what happens if no default account is selected. This is minimal behavioral disclosure beyond the name.

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 with immediate verb ('Get') and no filler. It is concise, front-loaded, and every word contributes to the meaning. It is appropriately sized for a tool with no parameters.

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 zero-parameter, read-only tool with no output schema, the description is sufficiently informative. It states the operation and the target resource. However, it could be slightly more complete by mentioning that the balance is in the default account's currency or that it may return null if no default exists, but given the simplicity, it is largely complete.

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 is empty, so parameter coverage is complete. The description adds meaning by specifying that the balance is for the 'current selected as default account', which clarifies what the no-argument call actually returns. This goes beyond the empty schema, so a baseline of 4 is appropriate.

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 function: 'Get the current selected as default account balance from TropiPay'. It uses a specific verb 'Get' and identifies the resource ('default account balance from TropiPay'), which distinguishes it from sibling tools like get_accounts_list (which lists accounts) or get_movement_list (which lists movements).

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. The description does not mention scenarios, exclusions, or compare with sibling tools. A user must infer from the name alone that this is for checking the balance of the default account, but no explicit usage context is provided.

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