get_balances

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses almost nothing beyond the aggregate scope. It never says whether this is a cached read, whether it hits the network or triggers a provider sync, or what the freshness guarantees are - all relevant given the undocumented 'fresh' flag. No permissions, rate-limit, or response-shape context is given.

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?

A single front-loaded sentence with the primary action first and the scope qualifier close behind. The quoted tagline is slightly fluffy but does add a usable framing at minimal cost.

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?

With no annotations, no output schema, and 0% parameter coverage, the description leaves the agent without enough to call this correctly or interpret the result. It does not explain the fresh/refresh behavior, the provider_id filter, or what the returned balances look like.

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 neither of the two parameters is mentioned in the description. 'fresh' (evidently a refresh-from-provider flag) and 'provider_id' (evidently a scoping filter) are left entirely unexplained, and the phrase 'every account and card' does nothing to clarify how provider_id narrows the result.

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?

States a specific verb ('Get') and resource ('balances') with an explicit scope qualifier ('for every account and card at once') that distinguishes it from the singular get_balance and get_card_balance siblings. It stops short of naming those alternatives directly, so the differentiation is implied rather than stated.

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 tagline 'the "how am I doing" view' implies an aggregate/summary use case, which is a reasonable hint about when to reach for this over the single-account tools. However, there is no explicit when-to-use or when-not-to-use guidance and no sibling is named, leaving the agent to infer the routing.

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