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

Annotations already indicate idempotent and non-destructive behavior, but the description adds the key merge semantics and the fact that calls are free. It also makes clear that partial updates are acceptable. There is no contradiction with the provided annotations.

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 compact and every sentence earns its place: purpose, merge behavior, and cost. The one-word 'Free.' is terse but communicates a material constraint. No fluff or redundancy.

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 tool with one nested parameter and a schema that fully describes that parameter, the description plus schema provides enough to call it correctly. A small gap is that it does not explicitly distinguish this from submit_banking_application or describe what happens after all questions are answered, so it is not quite a 5.

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 schema description covers the only parameter fully, explaining that details are keyed by the field names getBankingApplication reported as outstanding. The tool description reinforces the relationship to getBankingApplication but does not add substantial new semantic detail beyond the schema, so the baseline of 3 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 states a specific action ('Submits answers') and resource ('non-identity application questions read from getBankingApplication'), clearly identifying this as a partial update tool rather than a full application submission. The 'non-identity' qualifier and the merge behavior help distinguish it from siblings like submit_banking_application.

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?

Usage is tied to getBankingApplication output and repeated calls are explicitly supported ('Call as many times as needed; each call merges'). However, it does not explicitly name alternative tools such as submit_banking_application or state when not to use this tool, so it falls just short of full guidance.

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