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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered structurally. The description adds modest value by disclosing the content is a static official Q/A corpus, but says nothing about whether the content is cached, versioned, or how large the result is.

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?

One compact sentence that front-loads the resource and parenthetical topic list. No filler, though the parenthetical topic enumeration is dense and slightly list-heavy for the amount of actual guidance delivered.

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 zero-required-param read tool with full schema coverage and annotations present, the definition is nearly sufficient. The only real gap is not flagging that results are locale-dependent, which matters for an agent answering a multilingual user.

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 optional `locale` param already documents allowed values (sv default, en, de) in the schema. The description doesn't mention that content is localized or what happens on unsupported locales, so it adds nothing beyond the schema — baseline 3 applies.

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 resource (Helsama's official FAQ) and enumerates the topics it covers (ordering, shipping, returns, quality, legality, origin), plus the return shape (question/answer pairs). It implicitly separates itself from article/search siblings by being the curated FAQ set, but never names a sibling to draw the line explicitly.

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?

Usage is only implied: an agent can infer this is the right tool for general policy/ordering questions rather than `get_article` or `get_store_policies`, but the description never states when to prefer it over those siblings or when not to use it.

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