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 strongly conveys the deterministic, read-oriented nature of the result and lists what the plan contains, but says nothing about permissions, rate limits, caching, or failure modes for an invalid/unknown device id.

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?

Front-loaded with the purpose, and the second sentence is a compact input spec. The middle enumeration of plan contents is a long run-on list, but each item does convey real scope rather than 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?

With an output schema present, the description need not detail return values, yet it usefully summarizes the plan's sections. For a single-parameter read tool, the definition is essentially complete; only routing guidance against siblings is absent.

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% for the single device_id parameter, so the schema already documents type and length constraints. The description merely restates 'Input: device_id 1-200 chars', adding no meaning beyond the structured field.

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?

States a specific verb and resource ('Return the complete deterministic build plan') and enumerates the plan's contents, so the agent knows exactly what it gets back. It does not, however, differentiate itself from siblings like plan_gadget or assess_hackability, which is the remaining gap.

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?

There is no guidance on when to call this versus plan_gadget or the other siblings, and no prerequisites or exclusions are stated. The agent must infer that a catalog device_id is the trigger condition.

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