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

Annotations already declare destructiveHint=true and a title, so the safety profile is partly covered. The description adds little beyond that: it does not say what happens to an image when unpublished (does the public URL break? are existing views removed?), whether a share link is generated, or what permissions are required. For a mutation flagged destructive, this is thin.

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 a single short sentence with no waste and the action is front-loaded. However, the terseness is under-specification rather than genuine economy – there is simply not enough content for the task's complexity.

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 two-parameter mutation tool with destructiveHint=true, no output schema, and only half its parameters documented, the description should carry more weight. It does not explain the toggle's effects, the accepted id format, or the return behavior, leaving the agent under-equipped to call it correctly.

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 only 50%: the required 'id' parameter has an empty description, and the 'public' boolean's schema text simply repeats the tool description. The description adds no meaning beyond the schema, and it fails to compensate for the undocumented id parameter (which image identifier? slug, numeric id, URL?).

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 names a specific verb pair (publish/unpublish) and resource (image), so the core action is inferable. However, it does not explain how this relates to the tool's own name 'share' or differentiate it from siblings such as images_update, images_delete, or files_share. An agent could plausibly conflate it with a general update operation.

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 versus alternatives, and no prerequisites or conditions are stated. The agent is left to infer that 'sharing' an image means toggling its public visibility, which it must reconstruct from the tool name and the boolean parameter.

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