Post Instances Quotes Fx

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

Annotations only declare readOnlyHint=false, openWorldHint=true, idempotentHint=false, destructiveHint=false; the description adds nothing about what the POST does, whether a quote is persisted, or how long it remains valid. Notably the schema exposes an Idempotency-Key parameter while the description never mentions retry semantics, which is the main behavioral concern here.

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?

Three words with no front-loaded intent, scope, or constraints. It is terse but under-specified rather than concise.

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?

A POST endpoint with a nested body, enums, an idempotency header, and no output schema needs a description covering the request shape and return value. 'Get FX Rate' supplies none of that.

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 only 33% and the description contributes zero parameter meaning. The nested requestBody (from/to enums, currency_type, request_amount with a non-obvious minor-unit convention) is not explained, so an agent must read the schema closely to call it correctly.

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 restates the tool name in plain words ('Get FX Rate' for PostV1InstancesQuotesFx) without saying what an FX quote actually returns or how it differs from the many sibling quote endpoints (PostV1InstancesQuotes, PostV1InstancesPayinQuotesFx, PostV1InstancesTransferQuotes). An agent cannot tell which quote tool to pick.

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 the numerous sibling quote and payin/payout tools, no prerequisites, and no stated exclusions. The agent must guess from the tool name alone.

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