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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It indicates a read-style operation through 'Get' and gives use-case context, but it does not state whether the operation is read-only, how fresh the data is, whether there are rate limits, or what the response looks like.

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 short sentences, front-loads the core operation, and follows with relevant use-case context. There is no wasted text.

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 simple read tool with full schema coverage and no output schema, the description is minimally adequate. It is missing details about how baseChain affects the result and what the pairwise spread output includes, which would help an agent use it 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 schema already fully documents provider, symbol, and baseChain with enums and descriptions. The description mentions provider and symbol but adds no additional meaning, and it does not explain the role of the optional baseChain parameter. Baseline 3 applies.

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 states a specific verb and resource: getting pairwise price spreads across chains for a provider and symbol. It is clear what the tool does, but it does not differentiate the tool from nearby siblings such as compare_oracle_deviation or get_correlation.

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 phrase 'Useful for cross-chain arbitrage and risk tracking' gives implied usage context, but it does not explicitly say when to use this tool versus alternatives or when not to use it. An agent must infer the selection criteria from the name and use cases.

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