suverse_estimate_cost

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

With no annotations, the description carries the full burden. It discloses key behavioral traits: the tool estimates cost without paying and is explicitly 'FREE — no payment.' This is crucial safety-relevant information. However, it does not mention authentication requirements, rate limits, or response format, so it is not fully transparent.

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 three short sentences, front-loaded with the main action and followed by usage guidance and a reinforcing 'FREE — no payment.' Every sentence earns its place with no 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?

Given the tool's simplicity, the description covers purpose, usage, and the free/no-payment trait. Since there is no output schema, the description should ideally hint at the return value, which it does implicitly ('Estimate the USDC cost'). It lacks details on batch limits or response structure, but is sufficient for a simple estimate tool.

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%, and the schema already describes 'tool' as 'A single tool name to price' and 'calls' as 'A batch of calls to price.' The description adds no extra semantics beyond these, so the baseline of 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 clearly states the tool's function: 'Estimate the USDC cost of one or more tool calls WITHOUT paying.' It specifies the action (estimate), the resource (USDC cost), and the key qualifier (without paying), which distinguishes it from any cost-incurring execution. There is no sibling tool with similar purpose, so it stands alone clearly.

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 provides explicit usage context: 'Useful before batch operations.' This tells the agent when to use the tool. However, it does not mention when not to use it or name any alternatives, though no direct alternatives exist among siblings. This warrants a 4 rather than a 5.

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