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

The annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered without the description's help. The description does add useful domain context about what data is returned (current Windows versions 2026/2027, PLN pricing), but says nothing about freshness, localization limits, or failure modes for unavailable products.

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 front-loaded sentence with no filler; every clause adds concrete content. The nested parenthetical is dense but still readable and wastes nothing.

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, single-optional-param lookup with no output schema, the description adequately conveys the scope of returned data. The only gap is that it does not describe how the optional 'section' parameter changes the response payload.

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 'section' enum is fully documented with the default, so the baseline is 3. The description hints at section content groupings (pricing/downloads/mobilna) but does not map them to the parameter or explain what 'all' vs 'mobilna' returns.

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 gives a specific verb and resource ('Returns product and pricing info') and enumerates the concrete contents (plans, PLN prices, download URLs, purchase links) for two named products. It is clear on its own, but it never positions itself against siblings such as compare_editions or get_faq, so sibling differentiation is left to inference.

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?

No when-to-use or when-not-to-use guidance is given, and no alternative is named. An agent looking for a feature comparison could plausibly land here instead of compare_editions with nothing in the description to steer it.

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