Get a packing list

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

With no annotations provided, the description carries the full burden. It states that the tool returns data ('Returns full detail') and includes computed totals, but it does not explicitly confirm this is a read-only operation or mention error/not-found behavior or permission requirements. The read intent is clear, but some transparency gaps remain.

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 that immediately states the tool's purpose and then enumerates the return contents. Every word earns its place with no repetition or fluff.

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, the description does a good job of explaining what the response contains: categories, items with weight/price/qty and flags, and computed totals. It omits minor details like item names/IDs or error behavior, but for a simple get-by-detail tool this is largely complete.

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 input schema has 0% description coverage for the single parameter listId. The description never explicitly mentions this parameter or explains that listId identifies the target packing list. It only says 'one packing list', which lightly implies this but does not adequately compensate for the lack of schema documentation.

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 uses a specific verb and resource: 'Returns full detail for one packing list'. It clearly distinguishes from siblings like list_lists by emphasizing 'full detail' and 'one packing list'.

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 clearly implies when to use this tool: when you need the full detail of a single packing list. It does not explicitly name alternatives or exclusions, but the scope is evident from 'one packing list' contrasted with the sibling tool list_lists.

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