youfiliate_create_smart_link

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

Annotations indicate readOnlyHint=false and destructiveHint=false, which are consistent with a creation tool. The description adds value by stating it does not modify existing links and lists common errors (slug taken, plan limit, invalid URL), providing behavioral insight beyond annotations.

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?

The description is concise at 7 sentences, starting with a clear purpose, then optional features, then a clarification of non-modification, then return value, then common errors. Every sentence adds value without redundancy.

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?

The description mentions the return value includes the short URL and smart link details, which compensates for the missing output schema. However, it does not detail all possible fields in the response. Given the tool's complexity (geo rules, deep linking), the description is fairly complete but could elaborate more on the response structure.

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?

The input schema has detailed descriptions for all parameters, so the description adds little new semantic meaning. It summarizes the purpose of key parameters (slug, geo_rules, deep_link_config) but does not provide additional depth beyond the schema. Baseline 3 is appropriate given high schema coverage.

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 clearly states the tool creates a new geo-targeted smart link with optional custom slug, redirects visitors, and configurable geo rules and deep linking. It distinguishes from siblings by explicitly noting it does not modify existing links, which separates it from update and delete tools.

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 provides clear context for usage: to create a smart link with optional geo-targeting and deep linking. It implicitly guides against modifying existing links via the 'does NOT modify' statement, but does not explicitly name alternatives or when not to use this tool. The sibling tool list provides additional context.

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