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

No annotations are provided, so the description carries the full behavioral burden. For a zero-parameter static reference tool the behavioral footprint is inherently small, and the description does reveal the return payload (the actual helpline numbers), but it discloses no auth, rate-limit, or edge-case behavior. Minimum viable.

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?

A single tight sentence whose body is the payload itself. The bracketed category prefix '［數位健康與遠距醫療指南］' is mild overhead that an agent already infers from the tool name, but the listing is otherwise efficient and front-loaded.

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 trivial zero-parameter lookup with no output schema, the description conveys the complete returned content. Its only real gap is framing around when this tool should be surfaced versus the related health/wellness siblings.

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?

Zero parameters, so the baseline is 4. There is nothing for the description to document, and it appropriately does not attempt to describe parameters that do not exist.

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 what the tool provides: Taiwan psychological crisis helplines with four specific named services and their numbers. This is a specific resource rather than a tautology. However, it does not differentiate itself from nearby siblings such as health__get_counseling_guide or wellness__digital_wellness_guide.

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 is a pure content listing with no when-to-use statement, no condition that selects this over alternatives, and no exclusions. An agent must infer the triggering scenario from the tool name alone.

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