bond_yield

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

No annotations are provided, so the description must carry the full burden. It adds the cost ($0.001 USDC via x402) as a behavioral trait, but nothing about how the calculation works, required inputs, network calls, or return behavior. The cost disclosure is useful but the rest is opaque.

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 extremely short, but it is under-specified rather than concise: one sentence that fails to explain purpose or usage. The cost info is useful, but the rest is filler.

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 financial calculation tool with a generic schema, no output schema, and no annotations, the description is sorely incomplete. It leaves the agent guessing about inputs, outputs, and calculation type. Only the cost is disclosed.

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 has a single generic 'params' object described as 'Tool parameters as JSON object', which is tautological and unhelpful. The description adds no parameter semantics, so an agent has no idea what properties to supply for a bond yield calculation.

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?

Description restates the tool name ('bond yield') and labels it as 'Finance & Math tool', but provides no verb or specific action. It does not distinguish from sibling financial calculators such as loan_calculator or compound_interest.

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?

No guidance on when to use bond_yield versus alternatives, no exclusions, and no context about appropriate use cases. The cost note is not usage guidance.

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