list_device_name_mappings

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

With no annotations, the description carries the full burden. It uses 'Fetch' to imply a read-only operation and discloses a key invocation constraint (site context not required). However, it does not explicitly state side-effect status, authentication needs, or return format beyond what the output schema provides, leaving some behavioral aspects implicit.

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 a single sentence that front-loads the action and resource, then adds a concise scope note. Every word earns its place; there is no redundancy or filler.

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 has no parameters and the output schema exists, the description covers the essential invocation context (what it fetches, site context not needed). It could slightly elaborate on what a 'device name mapping' represents, but overall it is complete enough for a simple list operation.

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 tool has zero parameters, so schema coverage is trivially 100%. The description adds no parameter-specific details, but none are needed. The note about site context effectively clarifies that no site parameter is required, which is helpful for invocation.

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 uses a specific verb ('Fetch') and resource ('device name mappings') with a clarifying parenthetical ('firmware bundles'), clearly distinguishing it from sibling list tools like list_devices or list_device_states. It also adds a scope note about site context, which further pinpoints its role.

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 explicitly states 'Does not require site context,' providing clear context that this tool can be invoked without site-level parameters. It does not explicitly name alternatives or exclusions, but the context note is a useful usage signal in an API where many list tools may require site context.

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