Compare headings

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

No annotations are provided, so the description must carry the full burden. It does not disclose whether the tool performs network requests, its read-only nature, rate limits, or the nature of the 'diff' output. There is no mention of side effects or error behavior, leaving significant uncertainty.

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 a single, compact sentence with no redundancy. It is front-loaded with the verb and resource. While terse, it is efficient and free of filler.

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 tool has no output schema and minimal annotations, so the description must explain what the result looks like and when to use it. It fails to describe the comparison format, pagination, or any constraints beyond the schema. The lack of context about sibling tools makes it hard for an agent to decide appropriately.

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?

With 0% schema description coverage, the description must explain the 'urls' parameter. It only says 'multiple competitor URLs', which adds little beyond the schema's array type and min/max constraints. It does not clarify URL format, validation, or how the parameter influences the diff.

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 'Diff' and a clear resource 'H1–H6 outlines across multiple competitor URLs'. It distinguishes from siblings by explicitly focusing on heading structures, which is distinct from content_gap_analysis or scrape_page. Purpose is unambiguous.

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?

No guidance on when to use this tool versus alternatives like content_gap_analysis or scrape_page. It only states what it does without any context on selection criteria or exclusions. The agent is left to infer applicability.

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