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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering the safety and external-access profile. The description adds the 'public web page' scope but does not disclose behaviors like robots.txt enforcement, failure modes, or what happens when no table is found; nor does it contradict the annotations.

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 core sentence is tight and front-loaded with the action and resource. Minor redundancy exists in the 'Extract Table —' prefix that duplicates the title, and '[category: web]' adds limited value, but overall the description is efficient.

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 6-parameter tool with no output schema, the description plus detailed parameter schema cover the required URL, output envelope, timeout, user agent, table index, and robots handling. The main gap is explicit guidance on sibling-tool selection and expected error behavior, but an agent can invoke the tool correctly from this definition.

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 100%, so each parameter is already well documented, including the JSON envelope behavior for CSV output. The description's 'JSON rows or CSV' adds no new detail beyond the schema, so the baseline 3 is appropriate.

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 states a specific verb and resource: 'Extract an HTML table from a public web page at a user-provided http(s) URL, as JSON rows or CSV.' It clearly distinguishes this from generic web_fetch and web_scrape_page siblings by targeting table extraction with explicit output formats.

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 implies use when a user wants a table from a public web page, and it signals limitations like 'public' and http(s)-only. However, it does not explicitly mention alternatives, exclusions, or when to prefer web_fetch/web_scrape_page, leaving routing partially to inference.

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