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

No annotations are provided, so the description carries full responsibility. It discloses that the tool can create, shuffle, and optionally draw/deal, but does not explain state changes, return format, or side effects of creation. It adds basic behavioral detail but lacks depth for a mutating tool.

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?

A single 10-word sentence efficiently conveys the core operations without redundancy or unnecessary details.

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?

Despite the low required parameter count, the tool supports multiple operations and has no output schema or annotations to fall back on. The description doesn't explain what 'create' returns, how hands and per_hand interact, or default behavior, leaving a substantial gap.

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%, so the schema already documents all four parameters. The description adds no additional parameter semantics beyond the general 'draw/deal' concept, leaving the baseline at 3.

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 specific verbs (create, shuffle, draw/deal) with a clear resource (card deck), making its purpose immediately evident. It distinguishes from sibling tools like coin_flip or dice_roll by focusing on card deck operations.

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 provides context for card deck operations but does not explicitly state when to prefer this over alternatives, nor does it mention exclusions or prerequisites. Usage is implied from the tool name and description, not explicitly guided.

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