Get playing song

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered and the bar is lower. The description still adds essentially nothing beyond restating the read (no rate limits, no auth/scope notes, no note on what happens if nothing is playing), so it earns little credit.

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 sentence with zero wasted words, correctly sized for a one-parameter read tool.

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 read query whose safety profile is carried by annotations and whose parameter is fully documented by the schema, this is nearly complete. The only real gap is the lack of differentiation from sibling song-request tools.

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 100% and the single channel parameter is fully documented in the schema (format and defaulting behavior). The description adds no parameter meaning beyond that, so the baseline of 3 applies.

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 a specific verb (get) and resource (the song currently playing on the channel), which an agent can map to a concrete action. However, it does not distinguish itself from close siblings like songrequests_playing_global or songrequests_player_status, leaving the agent to infer the channel-scoped vs global distinction on its own.

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 when-to-use or when-not guidance and no alternative named. The presence of songrequests_playing_global makes the omission meaningful: the agent is never told when this channel-scoped call is preferred over the global one.

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