speed_convert

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

No annotations are present, so the description must carry the full burden of behavioral disclosure. It does add a notable fact: the tool costs $0.001 USDC via x402. However, it does not disclose what the tool actually does beyond 'Converters tool', how the payment flow works, error scenarios, or any operational limits. This is a minimal behavioral disclosure.

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 very short—one sentence—and is not verbose. However, the phrase 'speed convert — Converters tool' largely mirrors the tool name, making that part redundant. It is concise but sacrifices content needed for clarity.

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 that likely requires nested parameters and involves a payment mechanism, this description is severely incomplete. It does not explain what conversions are supported, how to structure the params object, or how the x402 billing process behaves. The sole mention of cost is insufficient for an agent to use the tool correctly.

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 input schema only exposes a generic 'params' object with no internal structure. The tool description does not elaborate on what keys or values this object should contain, leaving the agent to guess. Although schema description coverage is technically 100%, the description is a tautology and adds no meaningful semantic information.

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 identifies the tool as a 'Converters tool' but does not specify what kinds of conversions it performs. This is nearly a restatement of the name and does not distinguish it from sibling tools like convert_currency or convert_units. A clear verb and resource are missing.

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 speed_convert versus other converter tools in the sibling list. The description only mentions the cost and gives no indication of suitable use cases, prerequisites, or exclusions. This leaves the agent without direction.

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