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. It does disclose that an API Key is required, which is useful, but says nothing about read-only semantics, pagination, result volume, or what the notifications contain structurally.

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 front-loaded line, which is efficient, but it repeats the same information twice: '（需 key）' and '（需 API Key）'. Removing the duplicate would tighten the definition without losing content.

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 zero-parameter, no-output-schema read tool this is the minimum viable: the resource and auth prerequisite are stated. It stops short of disclosing read-only behavior or return characteristics, which an agent with no annotations would benefit from.

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 tool takes zero parameters, so the baseline is 4. There is nothing for the description to compensate for; no parameter-level semantics are needed.

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?

States the resource (收件箱/inbox) and enumerates what it contains – 打招呼/应征/回复 notifications – which distinguishes it from siblings like soloteam_member or soloteam_directory. No explicit verb, but the resource and content scope are unambiguous.

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 only guidance is the prerequisite '需 API Key' – no statement of when to use this inbox versus checking soloteam_conduct, soloteam_member, or other sibling tools. An agent gets the auth requirement but no routing logic.

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