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

Annotations declare readOnlyHint=false, destructiveHint=false and idempotentHint=false; the description adds real behavioral context beyond them — the link is time-limited and contains no prices, with final pricing confirmed on-site. It does not, however, flag that repeated invocation yields distinct links (the non-idempotent consequence), which would be the remaining useful disclosure.

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?

Three front-loaded sentences: what it produces, its key constraints (limited validity, no prices), then when to use it. Every sentence carries distinct information with no repetition of schema content.

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?

An output schema exists, so return-value explanation is unnecessary, and the description covers purpose, constraints and routing. The only mild gap is the absence of any note on repeated-call behavior for a non-idempotent link generator, but otherwise it is sufficient to call the tool correctly.

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 sole 'items' parameter is richly documented in-schema (qty bounds, options limits, product_id provenance). The description only lists the cart contents generically, adding no syntax or constraints beyond what the schema already provides, so the 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 verb (Generează) and resource (link semnat către checkout-ul tatuat.ro) with the cart scope (produse, variante, cantități, opțiuni) spelled out. It also names the sibling tools it is not (search_products/get_product), so an agent can route correctly without opening a schema.

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?

Explicitly gives the triggering condition ('Folosește acest tool când clientul e decis să cumpere') and the alternative path ('pentru a găsi produse sau prețuri folosește search_products/get_product înainte'). The when/when-not and the prerequisite step are both stated outright.

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