game_center_activity_images_delete_instance

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It says nothing about whether deletion is permanent or reversible, what permissions are required, whether dependent localizations or version references are affected, or what a successful response looks like. For a destructive operation this is a serious gap.

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?

It is very short and the operation is front-loaded, but the parenthetical duplicates the identical string, which is pure waste rather than information. Brevity here reflects under-specification rather than disciplined conciseness.

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 delete tool with no annotations and no output schema, the description must explain destructiveness, recoverability, and side effects. It does none of these, so an agent cannot safely call it based on the definition alone.

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%, and the single 'id' parameter is documented in the schema as 'the id of the requested resource', so the baseline of 3 applies. The description adds no syntax, format, or constraint detail beyond what the schema already states.

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 is a verbatim restatement of the HTTP method and path, which duplicates the tool name rather than explaining what deleting a Game Center activity image means in domain terms. It names a verb (DELETE) and a resource, but adds nothing an agent couldn't derive from the name itself, so it sits below the 'clear' threshold.

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?

There is no guidance on when to use this tool, no mention of prerequisites, and no reference to sibling operations such as game_center_activity_images_update_instance or create_instance. The agent is left to infer everything from the tool name.

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