List Direct Device Links

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

Annotations already provide readOnlyHint=true, and the description confirms 'Read-only' and adds behavioral context about the link nature (sender→receiver pairings independent of CCU). Contradiction flag false.

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?

Two sentences, front-loaded with purpose and examples, no redundant words. Efficiently packs essential information.

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 has an output schema (content not shown) and the description covers purpose, filter option, and read-only nature. No gaps given the context signals.

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 100% with a clear description of the 'address' parameter. The tool description adds that filtering is optional, but this is already implied by the parameter not being required. Value added beyond schema is marginal.

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 verb 'list' and the resource 'direct device links', provides examples (wall switch→lamp, thermostats→FALMOT), and distinguishes from sibling tools like list_devices or list_programs by specifying the unique type of links.

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 indicates optional filtering by address, giving clear usage context. It does not explicitly name alternatives or state when not to use the tool, but the uniqueness of 'direct device links' is implied.

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