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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is fully covered. The description adds one behavioral fact beyond the annotations — that results are paginated — but says nothing about default page size, ordering, or what happens with an unknown category/tag.

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 dense semicolon-separated sentence plus a short bilingual restatement; filters and pagination are front-loaded and nothing is wasted. The Russian clause is redundant rather than harmful.

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 5-parameter read tool with no output schema and only 40% schema coverage, the description covers the core capability but omits language selection, paging defaults, and the fact that category accepts an id, slug or title. Adequate but with identifiable gaps.

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 40%, so half the parameters (tag, page, per_page) are documented only by name and type. The description compensates partially by naming category and tag as filters, but adds no format or constraint detail beyond the schema's own category/lang descriptions, and never mentions lang or paging semantics.

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 (completed portfolio projects) and the fields returned (category, tags, summary), which cleanly separates it from list_blog_posts, list_services and the singular get_portfolio_item. It does not name a sibling explicitly, but the resource noun makes the distinction unambiguous.

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 description implies usage by listing the available filters (category slug/title, tag) and noting pagination, so an agent can infer this is the browsing/collection endpoint. However, it never says when to prefer this over get_portfolio_item for a single item or search_content for free-text queries.

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