Spot price across exchanges

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

Annotations already establish that this is a read-only, idempotent, non-destructive call. The description adds meaningful behavioral context beyond annotations: it specifies the two exchanges covered, the exact metrics returned, and the cross-exchange gap calculation.

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 two tightly written sentences with no filler. The core output scope is front-loaded, and the input shorthand rule follows efficiently.

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?

With no output schema, the description correctly lists the returned metrics and the cross-exchange comparison. It does not describe the response structure or error behavior, but for a simple one-parameter read-only tool it provides enough context to call 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?

Schema description coverage is 100%, so the symbol parameter is already documented. The description adds useful semantics by explaining that a bare coin symbol is interpreted as a USDT pair, beyond the schema's examples.

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 names a specific resource and scope: current spot price, 24h change, 24h range, quote volume, and cross-exchange price gap for Bybit and Binance. It is clear what the tool does, though it does not explicitly contrast itself with sibling tools such as get_market_overview or get_derivatives.

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 implied by the mention of spot price metrics on two exchanges, but there is no explicit guidance on when to choose this tool over alternatives like get_market_overview. No exclusions or prerequisite conditions are stated.

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