whatsapp_get_qr_code_image

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

Lacks disclosure of output format (e.g., base64, blob), size, or any side effects. No annotations provided to fill gaps. Minimal insight beyond the basic action.

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?

Single sentence, concise and front-loaded. No unnecessary words. Perfectly sized for the simplicity of the tool.

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?

With no output schema, the description should clarify what the tool returns (e.g., base64 string, binary). It only says 'PNG image' without specifying the response format, leaving ambiguity for an AI agent.

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?

No parameters defined, and schema coverage is 100%. Baseline score of 4 applies as description does not need to add parameter details.

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?

Description clearly states verb 'Get', resource 'QR code PNG image', and purpose 'for WhatsApp login'. It effectively distinguishes from sibling 'whatsapp_get_qr_code' by specifying the image format.

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?

No guidance on when to use this versus 'whatsapp_get_qr_code' or prerequisites like needing to be logged out. Usage context is implied but not explicit.

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