set_prearm_allow_rearm

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

With no annotations, the description adds some behavioral context by noting the data type ('UINT8') and default value ('OFF'). However, it does not disclose potential side effects, persistence, or required permissions, leaving gaps for a mutation tool.

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 extremely concise with no wasted words: one sentence plus a brief note on type/default. It is front-loaded with the purpose and efficiently communicates the essential details.

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 parameter setter without an output schema, the description explains the effect adequately but omits accepted values (e.g., OFF/ON or numeric range). It could be more complete by specifying valid inputs to the 'value' parameter.

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 provides 100% coverage for the single parameter but only a generic description. The tool description adds the default value and type ('UINT8'), which supplements the schema. This additional information improves parameter understanding.

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 clearly states the tool's purpose: 'Allow re-arm without toggling the prearm switch between flights.' It uses a specific verb ('Set') and resource ('prearm_allow_rearm'), and the effect is well-defined, distinguishing it from many similar set_ tools.

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?

The description provides no explicit guidance on when to use this tool versus alternatives. Among the many set_ tools, it does not mention when this setting should be enabled or disabled, nor does it reference related settings like stick arming or arming flags.

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