1s_ens_resolve

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

With no annotations, the description must fully explain behavior. It identifies forward and reverse resolution, input formats, and network restrictions. Yet it omits details on return values, error handling (e.g., ENS not found), or potential side effects, leaving some behavioral uncertainty.

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 sentences long, directly addressing purpose, input, and constraints. No unnecessary words or repetition, making it easy to parse and front-loading critical information.

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 simple tool (2 params, no nested objects), the description covers primary functionality. However, it lacks details on output format or behavior on failed lookups (e.g., invalid ENS). Additionally, the network discrepancy between schema and description reduces completeness.

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?

Although the schema covers both parameters with descriptions, the description contradicts the schema by restricting networks to 'mainnet, sepolia' while the schema includes 'avax' as an enum value. This inconsistency undermines clarity and could mislead an agent.

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 resolves ENS names to addresses and vice versa, specifying accepted input formats (.eth or 0x) and supported networks. It distinguishes itself from sibling tools, none of which offer ENS resolution.

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 sets clear context by stating it 'Only works on networks with ENS registry deployed (mainnet, sepolia)', which guides when to use the tool. However, it does not explicitly mention when not to use it or provide alternative tools, though no sibling tool duplicates this functionality.

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