set_sealed_inventory

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

Despite no annotations, the description discloses it is a real write, Premium-gated, and requires an API key. It explains the upsert behavior (absolute quantity). Does not mention return values or error handling, but adequate for a mutation with simple params.

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?

Three sentences, no wasted words. The main action is front-loaded, followed by behavioral notes and a sibling reference. Perfectly concise for the tool's complexity.

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?

For a simple 2-param mutation with no output schema, the description covers purpose, usage, gating, and an alternative. Missing error conditions or rate limits, but these are acceptable gaps given the tool's simplicity.

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 descriptions. The description adds value by clarifying 'absolute quantity' and 'upserts', reinforcing the schema's 'Absolute quantity to set' and providing operational context. No additional param info needed.

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 it adds or updates a sealed product by setting absolute quantity, using 'upserts' to describe the operation. It distinguishes from the sibling remove_sealed_inventory by explicitly mentioning it for deletion.

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?

Provides when to use (add/update sealed product) and an alternative (remove_sealed_inventory for deletion). Also mentions Premium-gated and requires IWMM_API_KEY as prerequisites. However, does not differentiate from similar tools like add_inventory or update_inventory for non-sealed items.

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