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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is established. The description adds mild behavioral context by enumerating filter categories, but it does not disclose response format, pagination, limit behavior, or how filters interact. This is acceptable given the strong annotation coverage.

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?

One sentence with no filler; the main resource and filters are front-loaded. Every clause adds useful information, and the category examples are compact but informative.

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, filter-based list tool with strong safety annotations and no output schema, the description covers the essential invocation details. Minor gaps remain: no mention of how to combine filters, whether filters are mutually exclusive, or what the response shape looks like, but these are not critical for a browse operation.

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 0%, so the description must carry the parameter meaning. It does explain chain, entity, and category, including examples and allowed category values, but it says nothing about the 'limit' parameter, its default, or its acceptable range. This partial compensation earns a mid score.

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 uses a specific verb ('Browse') and resource ('labelled addresses'), and names the three relevant filter dimensions (chain, entity, category) with concrete category examples. This clearly differentiates it from sibling tools like lookup_address, which targets a single address, and get_entities, which focuses on entity 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 conveys clear usage context: it is for browsing a list of labelled addresses, with optional filters. It does not explicitly name alternatives or state when not to use it, so it stops short of a 5, but the intended use case is evident from the filtering language.

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