stop_looping

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

With no annotations, the description must carry the full burden. It does disclose the outcome (playback proceeds normally) which is more than nothing, but it omits whether the call is idempotent, whether it errors when looping is already off, and whether other loop modes (queue/repeat) are affected.

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?

One front-loaded sentence with a concrete effect clause; nothing is wasted or buried.

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?

An output schema exists so return values need no explanation, and the tool is a simple zero-param state toggle. The only real gap is the absence of annotations, which leaves the error/idempotency behavior undocumented.

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 there is nothing to disambiguate; baseline 4 applies. The description correctly implies no arguments are needed since it acts on "the current track".

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?

Specific verb+resource ("Stops looping the current track") that an agent can distinguish from loop_current_track and from stop_music/stop_looping semantics. It stops short of naming the inverse sibling explicitly, but the state change is 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?

Usage is implied by "the current track" and "so playback proceeds normally" — an agent can infer this is the undo of loop_current_track. There is no explicit when-to-use statement, no note on what happens if the track isn't looping, and no named alternative.

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