inventory_history

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

The description discloses that the tool is gated behind a higher plan, which is a behavioral restriction. It also suggests checking license_status. However, it fails to describe what the tool actually does or what happens when called. With no annotations, this is minimal but non-zero transparency.

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 and front-loaded with a warning, but it is under-specified and lacks any functional description. It is concise in length but not in substance, providing only a licensing notice rather than a useful tool description.

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 no output schema, no annotations, and zero parameters, the description is the only source of contextual information. It fails to state what inventory_history does, when to use it, or what it returns, making it fundamentally incomplete for an agent to correctly select or invoke the tool.

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 tool has zero parameters, and the schema is empty. The description adds no parameter semantics, but with no params to explain, the baseline of 4 applies. The description's silence on params is acceptable.

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 does not state what inventory_history does. It is entirely a licensing notice ('requires a higher plan') with no mention of the tool's function or resource. The name suggests inventory history, but the description is misleading as a tool purpose.

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 directs users to 'use "license_status" to see options', which is an explicit alternative, but it does not explain when to use inventory_history itself. The guidance is about license escalation, not about the tool's intended use case, so it offers little usage context.

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