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

With no annotations, the description carries the full burden and delivers: it discloses the Business-plan API key requirement, Google Web Risk destination screening, dynamic QR behavior, and per-scan tracking of country/device/referrer. It omits error/rate-limit behavior, but the notable operational traits are covered.

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?

Four compact sentences, front-loaded with the core action and outcome, then moving to differentiators, screening, and auth. No filler, though the QR/analytics aside is slightly dense for a single sentence.

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 mutation tool with no annotations and no output schema, the description covers what is produced (short link plus QR), who can call it (Business-plan key), and the screening/tracking side effects. Only failure modes and any reversibility details remain unstated.

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%, so the schema already documents url, utm, title, and customCode thoroughly, including the check_short_code hint. The description adds no parameter-level meaning beyond what the schema 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?

The description opens with a specific verb+resource+outcome: create a ShareCut short link for a URL and get a matching QR code. It clearly distinguishes itself from expand_short_link, get_link_qr, and shorten_urls_bulk by naming the single-URL creation behavior and the dynamic-QR capability.

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?

It explains why to choose this over a static QR and names update_link as the mechanism for post-print edits, giving contextual guidance. It stops short of stating when to prefer shorten_urls_bulk over this tool or any explicit exclusions.

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