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

Annotations already establish read-only, idempotent, closed-world behavior, so the description needn't repeat safety details. It adds useful traits — result ordering by title and completeness of the listing — but says nothing about result size, pagination, or what an unfiltered call returns.

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: the behavior first, then compact examples. No filler, nothing to cut.

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?

All three parameters are enums and are covered, and with no output schema the sorting note is helpful. But the description is silent on the no-filter case (does it return all articles?) and on result volume, which matters for a list tool an agent may call broadly.

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 only 33% (lang is the only described parameter), so the description carries the burden for category and kind — and it does, explaining the combination semantics and giving concrete example values. It still relies on the schema enums for the full value sets, which is acceptable.

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 clear verb+resource: enumerate every help article, optionally filtered by one category and/or one kind, sorted by title. Strong on scope, but does not explicitly contrast with siblings help_search or help_get, leaving the agent to infer the difference from names alone.

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 examples ("category 'classes'", "kind 'spell'", both) implicitly show how to use it and clarify the AND/OR combining logic. However, it never states when to prefer help_search or help_get over this tool, so guidance is inferred rather than declared.

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