Make QR code

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

No annotations provided, so description must carry full behavioral burden. It states output formats (PNG/SVG) and security ('Nothing leaves the machine'), which are useful beyond schema. However, it omits important details like permission requirements, error handling, or whether it's idempotent. The security note is a valuable addition.

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?

Two sentences, highly concise, with key facts front-loaded: action, output formats, source, and security. No waste.

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?

Complete for a generation tool with no output schema; annotations are absent but the description covers core behavior. It lacks details on error cases or required permissions, but these are minor for a self-contained tool.

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 coverage is 100%, so all parameters are fully documented in the schema. The description adds no parameter semantics beyond what the schema provides. Baseline 3 is appropriate.

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?

Clearly states the specific action (generate QR code) and resources (as PNG or SVG from link or text). An agent can instantly understand this creates QR codes, distinct from all sibling document/image 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?

Usage is implied from the clear purpose, but no explicit when-to-use or when-not-to-use guidance relative to alternatives. Given the domain is distinct from siblings, guidance would be minimal anyway.

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