get_factory_device_context

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds valuable behavioral nuance: it reports only Live-configured and currently writable control IDs for plugins and explicitly notes that hidden plug-in state remains unavailable.

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 two dense sentences with no filler. The primary purpose is front-loaded, and the plugin-specific caveat is efficiently placed in the second sentence.

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 only two well-documented parameters, read-only annotations, and no output schema, the description conveys the returned concept and its limitations. It does not spell out the full return structure, but that is a minor gap for a context-read tool whose core behavior is clearly stated.

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 description coverage is 100%, and both trackId and deviceId are already well documented in the input schema. The description adds the 'loaded device' framing but does not materially extend the meaning of the parameters, so the baseline of 3 is appropriate.

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 names a clear goal: combine a loaded device's native parameters with matched factory knowledge and parameter-group coverage, and for third-party PluginDevice instances report exact control IDs. It implies a read operation rather than a mutation, and the factory/plugin focus distinguishes it from chain-topology or mixer siblings, though it does not explicitly contrast a sibling.

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 conveys when the tool is relevant by mentioning loaded devices and third-party PluginDevice behavior, but it never explicitly tells the agent when to choose this over alternatives such as get_factory_coverage or get_device_hierarchy. Usage context is implied rather than stated.

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