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

Given no annotations, the description reveals some behavioral traits (it initiates a chat flow, conditionally proceeds). However, it does not disclose side effects, authentication needs, rate limits, or the overall flow beyond the first step.

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 very concise (one sentence), front-loading the main purpose. While it omits important parameter details, it avoids unnecessary verbosity.

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?

Lacking output schema and annotations, the description fails to explain the full registration flow, next steps, or expected outcomes, leaving the agent under-informed for multi-step interaction.

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 single parameter 'cardType' is completely unexplained in the description; with 0% schema description coverage, the description adds no semantic value for correct parameter usage.

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 it initiates a real-name registration chat process for the medical appointment platform, and mentions the first step conditions. However, it does not explicitly differentiate from sibling tools like register_confirm or appointment_start, though the name 'start' implies the entry point.

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 a usage condition (checks offline first visit, stops if not), which guides when to use, but it lacks explicit guidance on when not to use or mention of alternative tools.

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