defi_get_fees_overview

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

No annotations are provided, so the description carries the full burden. It only states the tool retrieves an overview but does not disclose any behavioral aspects such as response format, aggregation method, time range, or whether it returns a list vs. summary. This is insufficient for a tool with no annotations.

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?

A single, concise sentence that is front-loaded with the action and resource. There is no redundancy or extra fluff.

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 no-parameter tool with no output schema, the description is minimal but passable. It fails to explain what 'fees/revenue overview' includes (e.g., total fees, revenue breakdown, numbers per protocol), which would be needed for full completeness. Sibling tools exist that offer more specific fee queries, so knowing this tool's exact return scope is important.

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 tool has zero parameters, and the input schema confirms this. Per the baseline for 0-param tools, the description does not need to explain parameter semantics, and the schema coverage is 100%. The description adds no parameter info, but the baseline of 4 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 uses a specific verb ('Get') and resource ('fees/revenue overview') with a clear scope ('all DeFi protocols'). It distinguishes itself from sibling tools like defi_get_protocol_fees and defi_get_chain_fees by indicating an aggregate, cross-protocol overview.

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 only implies usage context: it is for a broad overview across all DeFi protocols, not for querying a single protocol's fees. There is no explicit guidance on when to prefer this over alternatives or when not to use it.

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