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 critical behavioral traits: the prerequisite (quote from another tool), time sensitivity (quote expiration), and response structure (orderId, createTime, orderStatus with defined values). However, it lacks details on permissions, rate limits, or error handling, which are important for a financial transaction tool.

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 well-structured and front-loaded with the core purpose, followed by important warnings and response details. Every sentence adds value: the first states the action, the second provides critical prerequisites, the third adds timing context, and the rest explain response fields. No wasted words.

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 complexity of a financial order placement tool with no annotations and no output schema, the description does well by explaining prerequisites, timing, and response structure. However, it lacks information about authentication requirements, potential side effects (e.g., fund movement), or error scenarios, which would make it more complete for this context.

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% with one parameter (quoteId), and the description adds minimal semantics beyond the schema's description. It mentions 'previously acquired quote' and 'quoteId' but doesn't provide additional context like format constraints or validation rules. With high schema coverage, baseline 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 clearly states the specific action ('Place an OTC trade order') and resource ('using a previously acquired quote'), distinguishing it from siblings like 'binance_us_otc_quote' (which provides quotes) and 'binance_us_otc_get_order' (which retrieves orders). It precisely defines the tool's function without tautology.

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 explicitly states when to use this tool ('You must first call binance_us_otc_quote to get a quoteId before placing an order') and provides timing guidance ('place the order immediately after receiving the quote'). It clearly differentiates from the sibling tool 'binance_us_otc_quote' as a prerequisite.

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