Create Tinku illustrations

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

No annotations are provided, so the description carries the burden. It discloses that the server applies the Tinku character, conceptual engine, and house style automatically, and that an interactive viewer opens. However, it does not mention potential side effects (e.g., file creation, cost, wait time) or any rate limits, leaving some behavioral gaps.

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 three sentences, front-loaded with the core purpose, followed by prompt composition guidance and usage context. Every sentence adds value with no redundancy or filler.

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?

Given the tool's complexity (multiple illustrations, prompt rules, style references), the description covers the essential aspects: output format (16:9, optional 21:9), viewer behavior, and server-side defaults. It does not describe return values, but the viewer aspect covers the output experience, and no output schema exists. Sibling tools are not explicitly differentiated, but the description is reasonably complete for a create operation.

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 a baseline of 3 applies. The description adds meaningful context for the prompt parameter, explaining what it should contain and that the server handles character/style automatically. This goes beyond the schema's field descriptions, justifying a 4.

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 the tool renders a set of hand-drawn Tinku illustrations and opens an interactive viewer. It specifies the resource and action (render + open viewer), and distinguishes from siblings by focusing on creation of a set, though it does not explicitly name alternative tools.

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?

Explicitly states when to use the tool: 'Use this when the user wants hand-drawn illustrations for an article, post, or explainer.' It also provides guidance on supplying prompts. It lacks explicit exclusions or when to prefer get_illustration/regenerate_illustration, but the context is clear.

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