netease_play

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

The annotations already declare readOnlyHint=false, openWorldHint=true, destructiveHint=false, so the safety profile is covered. The description adds real value by disclosing that this actually initiates streaming playback (not just queueing) and that it validates genuine progress, hinting at a blocking/verification step. It does not say how long verification takes, what happens on failure, or what the response contains.

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 compact clause with no filler, and the key scoping phrase (explicit song ID) is front-loaded before the verification behavior. It is efficient, though it leans toward under-specification rather than true concision.

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?

With no output schema, 4 undocumented parameters, and no explanation of playback/verification semantics (blocking behavior, side effects on the running player, error cases), the description leaves the agent without enough to call this confidently beyond the happy path.

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 there are 4 parameters. The description only alludes to songId; requestId (required, 1-128 chars — presumably a correlation/idempotency token), mode (sequence/shuffle/repeat_one), and level (standard/exhigh) are entirely unexplained in both schema and description.

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 states a specific verb+resource: stream-play a song identified by an explicit song ID, and verify actual playback progress. The qualifier '明确歌曲ID' distinguishes it from the playlist/daily/liked/radio siblings that select tracks implicitly. It is clear, though it never names a sibling directly.

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, and no routing advice among the ~25 netease_play_* siblings. Use is only implied by '明确歌曲ID' (call it when you already have a song ID).

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