netease_pause

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

The annotations already declare readOnlyHint=false and destructiveHint=false, and the description adds genuinely useful behavior: playback position is preserved and repeated pause calls are idempotent (they won't flip into playback). That idempotency disclosure is valuable context the annotations don't carry.

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 clause that states the core action and its two key guarantees. No filler — the two behavioral notes (position retained, idempotent) each earn their place.

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 one-parameter playback control with no output schema, the description covers the essential pause behavior. But it leaves the sole parameter unexplained and says nothing about failure/error behavior, so it's adequate rather than complete.

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 0% and the description never mentions the single required parameter, requestId. With one undocumented parameter, the description fails to compensate, though the low complexity limits the damage compared to a multi-param tool.

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 verb '暂停' (pause) and the resource (playback) are both stated, and '保留当前位置' implicitly distinguishes it from stop, which discards position. It is clear what the tool does, though it never names the sibling tools (netease_resume, netease_stop) it's contrasted with.

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?

There is no explicit when-to-use or when-not-to-use guidance. The agent must infer that this is the right call when pausing versus stopping or resuming purely from the phrase about preserving position, with no direct routing to alternatives.

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