list_peripheral_registers

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

With no annotations provided, the description carries the full burden. It explains the dual behavior based on the argument, but does not disclose if the operation is read-only, if a connection is required, or any side effects. For a listing tool, it is adequate but not detailed.

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, consisting of two short sentences that efficiently convey the tool's behavior. Every word contributes value, and the structure front-loads the key purpose.

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?

Given the tool's simplicity (one optional parameter, output schema exists), the description covers the essential behaviors. It could mention error handling for invalid peripheral names, but overall it is sufficiently complete for an AI agent to use correctly.

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 0% description coverage, so the description must add meaning. It clearly explains the effect of providing or omitting the 'peripheral' parameter, including an example ('RCC'). This compensates well for the lack of schema descriptions.

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 two modes: listing all peripheral names when no argument is given, and listing a specific peripheral's registers when a peripheral name is provided. It uses a specific verb 'list' and identifies the resource (peripheral registers), distinguishing it from sibling tools that read or write registers.

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 implies usage for exploring peripherals and registers, but does not explicitly state when not to use it or mention alternatives among siblings like 'read_peripheral' or 'read_peripheral_register'. The guidance is minimal and lacks exclusions or prerequisites.

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