generate_8_rotations

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

With no annotations provided, the description carries full responsibility. It discloses the output (8 directional views) and size range, but does not mention whether the tool is read-only or mutating, what permissions are needed, or whether it's synchronous/asynchronous. The description is adequate but lacks depth on behavioral traits.

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 exceptionally concise—only three sentences that immediately convey the core purpose and key distinctions. Every sentence adds value without unnecessary detail.

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 (9 parameters, multiple methods, nested objects), the description provides a high-level overview but does not map methods to their required parameters. While the schema is detailed, the description could better guide users on which parameters are needed for each method, especially since required parameters vary.

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 baseline is 3. The description adds value by grouping methods with their sources (e.g., 'rotate_character (from existing sprite)'), which clarifies the intended use of associated parameters like 'reference_image'. This extra context justifies a higher score.

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 generates 8 directional views from various sources, and distinguishes from a sibling tool (create_character_8dir) that creates a persistent character. The verb 'generate' and resource '8 directional views' are specific and unambiguous.

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 explicitly says when not to use the tool and provides a direct alternative ('use create_character_8dir instead'). It also outlines the three methods, helping users choose the right approach. However, it could be more explicit about when to use each method based on the user's input type.

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