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

The annotations already establish this as a safe, idempotent read operation, and the description adds useful behavioral detail about the returned timeline, included timestamps, delay information, and data source. It does not discuss auth, rate limits, or exact response shape, but those gaps are less critical for a simple read tool with annotations.

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 front-loaded sentence with no wasted framing. The timeline list and source clarification both earn their place.

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 two-parameter read tool with full schema coverage and no output schema, the description sufficiently explains what the returned timeline contains and what source it reflects. It could be slightly more complete by clarifying when to choose it over the other status-related siblings.

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%, so both shop and order_id are already well documented in the schema. The description adds little parameter-specific meaning beyond saying the status is for an order.

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 that this returns an order's current status as a timeline and enumerates the stages returned, including times and delays. It also scopes the source as the shop rather than live courier tracking, but it does not name any sibling tool it should be preferred over.

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?

It gives a clear usage boundary: use this for shop-sourced order status, not live courier tracking. However, it does not explicitly compare against nearby siblings such as order_status, check_delivery, or get_delivery_eta.

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