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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, covering the safety profile. The description adds useful behavioral context beyond annotations: only 'published' tools are returned, and results are paginated. It does not discuss auth, rate limits, or exact return shape, but the added constraints are meaningful.

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 two compact sentences with zero waste. It front-loads the core action and then lists the main optional behaviors, making it easy for an agent to parse.

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 simple list endpoint with a fully described input schema, a present output schema, and rich read-only annotations, the description covers what it lists, how it can be filtered, sorted, and paginated. Nothing critical for correct invocation is missing.

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 five parameters with defaults, enums, and examples. The description reinforces filtering by category and pricing model and sorting by rating or recency, but adds only mild semantic value (e.g., 'editor rating' vs. bare 'rating').

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') and resource ('published AI tools'), making the core purpose clear. It does not explicitly differentiate from siblings like 'search' or 'compare_tools', which could also surface tools, 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?

It implies when the tool is useful by describing optional filtering, sorting, and pagination, but gives no explicit guidance on when to use it instead of alternatives such as 'search' or 'get_tool'. No when-not or sibling routing is provided.

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