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

Annotations already declare readOnlyHint=true, openWorldHint=true and destructiveHint=false, so safety is covered; the description adds genuinely new behavior by enumerating the response payload (HTML and plain-text content, category, folder, author, views, likes) and decoding status (0 unpublished, 1 published). This matters because there is no output schema. It stops short of 5 by omitting what happens on a title miss or whether matching is case-sensitive.

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?

A single dense sentence front-loads the identity of the resource, then the returned fields, then the endpoint. Every clause carries information; only the trailing 'GET /v3/kb/article/details' is arguably redundant for an agent that never issues raw HTTP.

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?

With no output schema, the description is doing the right work by listing return fields and status encoding, and with readOnly annotations covering safety the remaining burden is low. The notable gap is failure behavior when no article matches the exact title, which an agent would want before calling.

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 description coverage is 100% and the single parameter already documents itself as 'Exact article title (from desk365_list_kb_articles)', so the baseline is 3. The description echoes 'exact title' but adds no new syntax, case-sensitivity, or length (300 char) guidance beyond the schema.

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 specific verb+resource ('Get knowledge base article') and narrows the identifier to 'its exact title,' which separates it from the sibling list tool desk365_list_kb_articles. It doesn't name the sibling explicitly, so it falls short of a 5, but an agent can tell what single record it fetches.

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 phrase 'by its exact title' implies a precise-match lookup and steers away from partial/keyword retrieval, but the description never states when to use this versus desk365_list_kb_articles or what to do when the exact title is unknown. The schema's '(from desk365_list_kb_articles)' carries the routing hint rather than the description.

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