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

With no annotations, the description carries the full burden and it does disclose two useful traits: the tool is paid ($0.002) and it returns severity-ranked issues rather than raw tags. It says nothing about read-only nature, rate limits, caching, or failure behavior on unreachable URLs.

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 sentences, zero waste, with the paid cost front-loaded so the agent knows the price before committing. Every clause carries 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?

For a one-parameter audit tool with no output schema, the description covers cost, scope, and return shape (severity-ranked issues). The only gap is that it does not characterize what kinds of issues or how many might come 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?

Single url parameter with 100% schema description coverage, so the schema already documents the expected absolute http(s) format. The description adds no syntax or constraint details beyond that, matching the baseline 3 for full schema coverage.

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?

States a specific verb (audit) and resource (a single URL) with the exact scope: SEO basics plus link and Open Graph health. This implicitly separates it from single-purpose siblings like webcap_og, though it never names them explicitly.

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 phrase 'for one URL in a single call' implies this is the consolidated alternative to the narrower siblings, but there is no explicit when-to-use or when-not-to-use guidance compared to webcap_og or webcap_analyze.

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