generator

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

With no annotations provided, the description carries the transparency burden. It discloses the partial-application behavior ('Applies whichever settings are provided') and the playback toggling behavior, which are important non-obvious traits. It does not mention return values or no-op behavior when called with no parameters, but coverage is solid.

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?

Two well-structured sentences: the first states the core operation and optional playback; the second gives the minimal toggle use case. Every word earns its place, and the most important information is front-loaded.

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?

The tool has four optional parameters, no output schema, and no annotations; the description covers the operation and the key usage pattern. It could additionally mention what happens when called with no parameters or how results are returned, but for a signal-generation control tool the description is substantially 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 100%, so the baseline is 3. The description adds value by specifying that provided settings are applied independently and that omitting play leaves playback state unchanged, which clarifies parameter interaction beyond per-parameter schema text.

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 opens with a specific action-resource pair ('Control REW's signal generator'), identifying a unique tool among sibling measurement commands. It further clarifies the tool's two functions (apply settings and optionally toggle playback), leaving no ambiguity about its purpose.

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?

It gives concrete usage guidance, including the exact minimal call for toggling playback with only { play: true } or { play: false }. It does not, however, explicitly contrast with alternative tools or state when it should not be used, so it stops short of a 5.

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