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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds useful behavioral context: it lists only 'Published' articles and orders them 'newest first', which goes beyond the annotations. It does not mention pagination details, but those are captured in the schema, so the description adds solid value without contradiction.

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 sentences with no filler. The core action and scope are front-loaded in the first sentence, and the second sentence provides a concise usage hint. Every word earns its place.

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 read-only list tool with fully documented parameters and a read-only annotation, the description covers the key behavioral points: published status, ordering, and filterability. It does not describe the return shape, but given the straightforward nature of a list operation and no output schema, this is acceptable and complete enough for correct invocation.

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 the schema already documents all three parameters with descriptions. The description's phrasing 'optionally filtered to one ANSWER category' essentially restates the category parameter's schema description. It adds no new parameter-level meaning, so it sits at the baseline of 3.

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 (list), resource (blog articles), and domain scope (AI visibility and ANSWER framework). It also provides ordering (newest first) and a filter option, clearly differentiating it from siblings like search_blog and get_blog_article without needing to inspect their schemas.

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 trailing 'Reference reading' hints at a use case but does not explicitly state when to use this tool versus alternatives like search_blog or get_blog_article. There are no exclusions or explicit alternative routing, so usage guidance is implied rather than definitive.

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