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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint. The description adds meaningful context beyond annotations: it specifies the output consists of writer-approved public share URLs, indicating an approval filter and public visibility constraint. No contradiction with annotations.

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?

A single, front-loaded sentence that is both specific and concise. Every word earns its place; no redundant 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 simplicity (one parameter, no output schema, strong annotations), the description is largely sufficient. It clearly states that the tool returns a list of URLs, though it could optionally note the output type (e.g., array of strings) or any pagination behavior, but 'all' already implies comprehensive results.

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 0%, so the description must compensate. It says 'for a writer,' which maps writerSlug to the intended entity, but it does not explain the slug format, how to obtain it, or any constraints. The parameter name itself already conveys the semantics, so the description adds only marginal value.

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 uses a specific verb ('List') and identifies the exact resource ('writer-approved public share URLs') plus the scope ('for a writer'). This clearly distinguishes it from siblings like list_project_assets (project assets) and get_public_pitch_assets (pitch assets).

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 provides clear context for when to use this tool: when you need public share URLs approved by a writer. It does not explicitly mention alternatives or 'when not to use,' but the clarifying phrase 'for a writer' implies it should not be used for other asset categories.

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