get_chain_breakdown

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

The annotations already declare this as read-only, idempotent, non-destructive, and open-world. The description adds useful availability context via the capability tier and API/authority endpoints, but it does not disclose deeper behavioral traits such as auth requirements, rate limits, or result shape beyond a brief summary.

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 short, but the leading bracketed metadata includes capability, tier, and endpoint details before the actual purpose. The final sentence, 'Takes no parameters,' repeats the schema and does not add value.

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 zero-parameter read-only aggregation tool, the description gives a basic return summary, but without an output schema it could be more explicit about the shape of counts, airdrops, and category coverage. It is adequate but leaves return-value interpretation partly ambiguous.

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?

There are zero parameters, so the baseline is 4. The description correctly states that the tool takes no parameters, which is consistent with the empty input schema.

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 gives a specific verb and resource: it returns protocol distribution aggregated by blockchain network, with counts, airdrops, and category coverage. It does not, however, distinguish this tool from nearby portfolio or protocol-analysis siblings such as get_portfolio_summary or get_protocol_metadata.

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 explains what the tool returns but gives no guidance on when to use it instead of an alternative sibling. 'Takes no parameters' is a schema restatement, not a usage condition, and there are no exclusions or prerequisites.

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