esphome_get_device_entities

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

No annotations are provided, so the description carries the full burden. It describes a read operation ('Get all HA entities'), which strongly suggests no destructive side effects. However, it does not disclose any required permissions, rate limits, or error behaviors (e.g., what happens if the device is not found). The description is adequate but lacks depth.

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 of 13 words, perfectly concise. It is front-loaded with the core action and delivers essential information without any redundancy.

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 is simple with one parameter and an output schema (provided but not shown). The description covers the basic purpose, but it does not mention prerequisites (e.g., device existence) or failure modes. Given the presence of an output schema, the return values are likely documented there. The description is minimally complete for a straightforward getter.

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 only parameter, device_name, is described in the description as 'match by name/slug,' which adds useful context beyond the schema. However, since schema description coverage is 0%, the description could have provided more detail on the expected format or constraints. It adds some value but not enough to fully compensate for the missing 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 purpose: retrieving all Home Assistant entities that belong to an ESPHome device, with the matching criterion (name/slug) specified. It effectively distinguishes this tool from sibling tools like esphome_list_devices or entities_list_entities.

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 when you need entities for a specific ESPHome device, but it does not provide any guidance on when not to use it or how it compares to alternatives such as entities_list_entities. No explicit when-to-use or when-not-to-use information is given.

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