Robinhood Chain stats

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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering the safety and live-data aspects. The description adds that the data is 'live' and lists the metrics, but does not disclose any further behavioral traits such as rate limits or potential delays. For a simple zero-input read-only tool, this level of additional context is modest but not deficient.

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, information-dense sentence. It front-loads the primary purpose ('Live Robinhood Chain overview') followed by a concise enumeration of included data points. Every phrase contributes meaning, with no redundancy or 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 simple read-only tool with no inputs, no output schema, and minimal annotations, the description fully covers the necessary context. It explains exactly what data is returned and emphasizes the live nature. Nothing essential is missing for an agent to select and invoke the tool 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?

The tool has zero parameters, and the schema's empty properties already indicate no inputs. The description reinforces this with 'No inputs,' which is a small but helpful confirmation. Per the rubric, a baseline of 4 applies for zero parameters, and no additional parameter explanation is needed.

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 a specific action ('get') and resource ('chain stats') with a detailed list of included metrics (latest block, gas price, TVL, network totals). It clearly distinguishes itself from sibling tools focused on tokens, quotes, and launches by targeting a chain-wide 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 clearly implies when to use the tool: whenever an agent needs a live Robinhood Chain overview or network-level statistics. It does not explicitly name alternatives or exclusions, but given the zero-input nature and unique scope, the context is sufficiently clear. Lacking explicit 'when-not-to-use' guidance, it falls just short of a 5.

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