schwab_check_margin_status

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

No annotations provided, so the description must disclose behavioral traits. It only states the purpose but does not mention side effects, data fidelity, or permissions. The agent cannot infer whether this is a read-only or destructive operation.

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, very concise. However, conciseness should not come at the expense of completeness; it could include more detail without being verbose. It is front-loaded but lacks substance.

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 has one required parameter and an output schema (not shown), the description is insufficient. It does not explain what the margin-call status entails or how it is derived from balances. The context is minimal for a tool in a complex domain.

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 the description does not explain the 'account_hash' parameter. It adds no meaning beyond the schema, failing to compensate for the missing parameter description.

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 'Derive margin-call status from Schwab account balances' clearly states the verb (derive) and resource (margin-call status), distinguishing it from siblings like 'margin_calls' which might list calls rather than check status. However, the verb 'derive' is slightly vague, and it could be more specific (e.g., 'check' or 'retrieve').

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?

No guidance on when to use this tool versus alternatives. It does not mention prerequisites, when to avoid, or how it differs from sibling tools like 'margin_calls' or 'schwab_account_balances'.

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