playstore_upload_image

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

No annotations provided, so description must fully disclose behavior. It mentions 'Changes are committed immediately,' which is a key trait, but lacks details on side effects (e.g., overwrites?), authentication needs, rate limits, or error handling. Insufficient for a mutation tool with no annotation support.

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?

Extremely concise: two sentences with no redundancy. Front-loads the main action and includes key additional details (formats, immediacy) without waste.

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?

Fairly complete for a simple upload tool, but lacks explanation of the 'language' parameter's role for images (screenshots are language-specific) and does not mention that the image file must be accessible via the given path. With no output schema, more context on expected behavior would help.

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 parameters are already documented. Description adds minimal value: it mentions supported image formats (PNG, JPEG, WebP) not in schema, but does not provide context beyond the schema for individual parameters.

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's action ('Upload an image') and target resource ('to Google Play Store listing'), with specific examples (screenshot, icon, feature graphic) and supported formats. It effectively distinguishes from siblings like playstore_delete_images and playstore_list_images by focusing on the upload action.

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?

No explicit guidance on when to use this tool versus alternatives (e.g., generate_icon, generate_screenshot for creation; playstore_update_listing for other content). Does not mention prerequisites (e.g., image must exist at path) or when not to use it.

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