arb_set_offset

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

No annotations are provided, so the description carries the full behavioral-disclosure burden. It only restates the action and argument meanings; it does not mention whether the offset is applied immediately to a channel, what range/validation applies, or what the response contains. For a mutating instrument-control call, this is a significant transparency gap.

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?

The description is compact and front-loaded: one clear action sentence followed by a minimal Args list. There is no filler, repetition, or unrelated context. It is appropriately sized for a simple setter, though it is sparse in other dimensions.

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?

Both required parameters are documented and an output schema exists, so the basic call shape is covered. However, the description lacks range/validation details and gives no guidance on when this tool is the right choice among the many arb_set_* siblings. In an instrument-control context, that missing operational context prevents the agent from being fully confident.

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?

The schema has zero property descriptions, so the description must compensate entirely. It does add useful meaning: channel is explicitly constrained to 1 or 2, and offset is given in volts. However, it does not document any offset range or cross-parameter limitations, so the compensation is only partial.

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 opening sentence is a complete verb+object statement: 'Set the DC offset in volts on the waveform generator.' It specifies the instrument, the parameter, and the units, which is enough to distinguish it from other arb_set_* tools without naming them. It does not explicitly contrast with any sibling, so it stops just short of a full 5.

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 guidance on when to use this tool instead of related setters like arb_set_amplitude, arb_set_phase, or arb_set_waveform. No prerequisites, channel-state requirements, or conditions are mentioned. An agent is left to infer selection solely from the tool name.

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