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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and non-destructiveness, so the safety posture is well covered. The description adds information about return content ('real-time price and market data') and flexibility ('Supports multiple chains and sorting options'), which is helpful beyond annotations. However, it does not disclose deeper behavior like pagination details, feed latency, or how 'trending' is calculated.

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 a single, well-structured sentence with no redundant phrases. The core purpose is front-loaded, and every word adds meaningful context, including real-time data mention and support for chains and sorting.

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?

The tool has no output schema, but the description compensates by stating what kind of data is returned ('real-time price and market data'). All 5 input parameters are fully described in the schema, and the annotations cover idempotence and read-only safety. The description is effective enough for an agent to call the tool correctly, though a bit more context about the output shape would have been ideal.

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 input schema already documents every parameter and its constraints. The description only broadly mentions 'multiple chains and sorting options,' which maps to the chain/sortBy/sortType parameters but adds no additional semantic detail beyond the schema.

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 action ('Get trending tokens') and the resource ('from Birdeye'), making the tool's basic purpose immediately understandable. It adds useful qualifiers like real-time price and market data, multi-chain support, and sorting. It does not explicitly differentiate itself from the sibling tool getTrendingCoins, but the Birdeye source and parameter scope provide sufficient clarity.

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 implies usage: when a user wants trending tokens with price/market data and needs chain/sorting flexibility. There is, however, no explicit 'when to use this instead of another tool' guidance, and no sibling-tool differentiations are provided. The usage context is inferable rather than stated.

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