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

Annotations already declare readOnly, idempotent, and non-destructive behavior, so the description only needs to add context beyond that. It adds the selection rule of 'newest saved revision' and 'latest review,' but says nothing about empty results or edge cases. This is acceptable but minimal.

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 with no wasted words. The action 'Get the latest review' comes first, and the revision qualifier is compact and necessary.

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 simple read-only lookup, the description, schema, and output schema together give an agent enough to call it correctly. The main gap is lack of explicit guidance distinguishing it from sibling review/revision tools, though the risk is low.

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?

Input schema coverage is 100%, so the schema already documents all parameters. The description does not add additional parameter-level detail beyond mapping contentType to 'post or page' and contentId to the revision target. Baseline 3 is appropriate.

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 precise verb-resource pair: fetches the latest review for the newest saved revision of a post or page. The 'newest saved revision' qualifier distinguishes it from list_content_reviews and get_content_revision without needing their schemas.

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 implies when to use it (when you want the review on the newest saved revision) but does not explicitly name alternatives or exclusion conditions. For example, it never says to use list_content_reviews for a broader view or get_content_revision for a specific revision.

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