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

With no annotations provided, the description carries full burden. It transparently states that the deletion is permanent and the short link stops working, which are critical behavioral traits. However, it omits other potential behaviors, such as whether the deletion cascades to dependent resources, or if it requires specific permissions beyond the API key.

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 extremely concise at two sentences, each earning its place: the first states the action and consequence, the second provides a crucial prerequisite. No unnecessary words.

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 simple delete operation with a single required parameter and no output schema, the description is largely complete. It covers the action, consequence, and key prerequisite. The only minor gap is the lack of explicit statement about irreversibility, which is implied by 'permanently delete.'

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% for the single parameter 'id', which has a brief schema description ('The dynamic code id.'). The tool description does not add further detail about the id format, source, or validation rules. Since the schema already provides adequate meaning, a baseline of 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?

The description clearly states the action ('permanently delete'), the resource ('dynamic QR code'), and the consequence ('short link stops working'). This distinguishes it from sibling tools like create_dynamic_qr or update_dynamic_qr.

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 explicitly states a prerequisite ('Requires an OpenQR API key'), which is important for the agent to know before invoking. However, it does not provide guidance on when not to use this tool (e.g., the need to ensure the correct id is used, or implications of irreversibility).

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