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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is covered elsewhere. The description adds that the return includes a canonical manifest and a verification state, but says nothing about failure behavior for unresolvable or malformed URIs or whether resolution is network-bound.

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?

Two short lines with the action and result front-loaded, and no filler beyond the attribution line. The '[W3BS]' tag and served-by note are mildly redundant with the title but cheap.

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 one-parameter read tool with no output schema the description covers the core intent, but it leaves the URI format and the shape of the returned manifest/verification state unexplained. An agent would still have to guess what to pass and what it gets back.

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 is a single required parameter 'uri' with 0% schema description coverage, so the description is the only place format or expected syntax could be conveyed and it supplies none. It does not clarify what a valid W3BS URI looks like, despite the 512-char bound in the 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?

Uses a specific verb ('Resolve') with a named resource ('W3BS URI') and states the outcome: the canonical manifest plus verification state. It does not explicitly differentiate itself from siblings such as w3bs_w3bs_verify or w3bs_w3bs_inspect, so it falls short of a 5.

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 usage is only implied: an agent can infer this is the tool to call when holding a W3BS URI. There is no explicit when-to-use statement and no exclusion or routing toward verify, inspect, or browse alternatives.

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