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

Goes well beyond the annotations (readOnlyHint=false, idempotentHint=true, destructiveHint=false) by disclosing that nothing is actually published, the two possible return modes (a confirmable review vs a browser link), and how the output must be presented. This is the rare case where the description adds real behavioral context rather than restating structured fields.

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?

Front-loaded with the core action and the 'publishes nothing' guard, but it runs six sentences and partly restates itself ('Returns exactly what would become public' vs 'The returned preview is the exact public content'). The presentation rules earn their place but could be tightened.

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?

With no output schema, the description carries the full burden of explaining return values and does so: it specifies the preview content, the confirmable review, and the browser-link fallback, plus the follow-up tool to call. Nothing an agent needs to invoke or act on the result is missing.

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?

Only one parameter with 100% schema description coverage, so the schema already fully documents 'list' (slug, handle, or id). The description adds no further parameter-level meaning, which is the correct baseline of 3 when the schema does the heavy lifting.

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?

States a specific action ('Prepare first publication or a list-wide update') on a specific resource, and immediately disambiguates from the real write by saying 'Publishes nothing.' An agent can distinguish this from confirm_publication and review_items/confirm_items without opening any schema.

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?

Explicitly routes the agent: use review_items and confirm_items when adding new picks, use confirm_publication after the owner agrees when chat publishing is allowed, otherwise fall back to a browser link. Both the when and the alternatives are named.

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