qr-maker

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It adds useful context beyond basic functionality, such as automatic tracked short link creation for URLs and base64-encoded output, but lacks details on permissions, rate limits, error handling, or response format. It adequately describes key behaviors but misses some operational aspects.

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 appropriately sized and front-loaded, with the first sentence covering the core purpose and key features. Each subsequent sentence adds necessary details (output formats, encoding, URL handling) without redundancy. It efficiently conveys essential information in three concise sentences.

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?

Given the tool's moderate complexity (4 parameters, nested objects, no output schema, and no annotations), the description is mostly complete. It covers purpose, styling, output formats, encoding, and URL-specific behavior. However, it lacks details on error cases, performance limits, or example usage, which would enhance completeness for a tool with no output schema.

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 baseline is 3. The description adds minimal semantic value beyond the schema, mentioning PNG and SVG output formats and tracked short links for URLs, which relate to 'content' and 'format' parameters. However, it does not elaborate on 'template_id' or 'style' beyond what the schema provides, keeping the score at baseline.

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 specific action ('Generate a styled QR code image') and resource ('QR code'), distinguishing it from siblings like 'create_short_link' or 'render_template' by focusing on QR generation with styling features. It explicitly mentions custom colors, logos, dot styles, and corner shapes, making the purpose distinct and comprehensive.

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 when to use this tool—for generating QR codes with styling and analytics—and implies usage for URLs (tracked short links) versus other content. However, it does not explicitly state when not to use it or name alternatives among siblings, such as 'batch_generate' for multiple codes or 'create_short_link' for links without QR generation.

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