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

With no annotations, the description carries the full burden and does so thoroughly: it discloses authentication requirements, per-call payment options, default and maximum limit, live status semantics, probe age for verified agents, unverified labeling, and a free check link. This goes well beyond a typical short description and helps an agent understand real-world constraints.

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 front-loaded with a long billing preamble that buries the actual search functionality until the second sentence. The cost and token details are much more verbose than needed for a tool selection description. While every detail might technically earn its place, the ordering and verbosity damage scannability.

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?

The description provides enough context for a caller to understand the full system: network, registry, search behavior, status semantics, auth/cost requirements, and the limit range. Since an output schema exists, the lack of an explicit return shape is not a penalty here. It is complete for the operational context.

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 coverage is 0%, so the description must provide parameter meaning. It does: 'by name and description' explains how `query` is used, and it supplies the otherwise missing default and maximum for `limit`. This is strong compensation for an otherwise minimal 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 clearly states the tool searches the ERC-8004 registry on BNB Smart Chain by name and description, and joins results with live ChainHelix status. The specific registry, network, and search fields make it distinct from simpler sibling tools like verified_agents. The billing preamble does not obscure the core purpose.

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?

Usage is implied rather than explicit: the description explains that the tool searches by name/description and includes unverified agents, which hints at when to pick it over a verified-only list. However, it does not name alternatives, say when not to use it, or clarify trade-offs versus sibling tools.

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