Get device info

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

Annotations already declare readOnlyHint=true and destructiveHint=false. Description consistently says 'Return', confirming read-only operation. However, no additional behavioral details (e.g., behavior on missing device, response size) are added beyond annotations.

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?

Single sentence, concise and front-loaded. Every word is meaningful. Could add slight context without excessive length, but current length is efficient.

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?

Output schema exists, so return values are covered. However, tool complexity is low, but gaps remain: behavior when device_path is null (uses default?), what metadata entails, and relation to sibling tools. Adequate but not fully complete for a seamless agent usage.

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?

Schema coverage is 0% for both parameters. Description only mentions 'retained device topics' (linked to device_path) and 'optional metadata' (linked to include_metadata). It does not explain format of device_path, default behavior when null, or what metadata includes. Insufficient compensation for 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?

Description clearly states it returns retained device topics and optional metadata for a single device (JouleScope). Verb 'Return' is specific, and 'for one JouleScope' distinguishes from sibling tools like list_devices (plural) or list_topics (general).

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?

Description implies usage when needing a specific device's topics, but does not explicitly state when not to use it or mention alternative tools like list_devices or list_topics. Lacks usage exclusions or selection criteria.

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