Binance.US MCP Server

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

With no annotations provided, the description carries full burden. It discloses the key behavioral trait of being a non-executing validation tool, which is crucial. However, it lacks other important behavioral details like authentication requirements, rate limits, error responses, or whether it simulates market conditions. For a financial API tool with 14 parameters, this is insufficient.

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 perfectly concise with two sentences that each earn their place. The first sentence establishes the core purpose, and the second clarifies the validation scope. No wasted words, and the key information is front-loaded.

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 complex trading tool with 14 parameters, no annotations, and no output schema, the description is incomplete. While it correctly identifies the tool as non-executing, it doesn't address authentication needs, rate limits, error handling, or what the validation response contains. The agent would need to guess about these critical operational aspects.

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 coverage is 100%, so each parameter is well-documented in the schema itself. The description doesn't add any parameter-specific semantics beyond what's in the schema, but with complete schema coverage, the baseline score of 3 is appropriate as the schema does the heavy lifting.

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 clearly states the specific action ('Test a new order'), resource ('on Binance.US'), and key differentiator ('without actually placing it'). It explicitly distinguishes this from actual order placement tools like 'binance_us_new_order' by emphasizing validation without execution.

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 description provides explicit usage guidance: 'Test a new order... without actually placing it' indicates this should be used for validation before executing trades. It implicitly contrasts with sibling tools like 'binance_us_new_order' for actual execution, though it doesn't explicitly name alternatives.

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