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

Annotations already declare readOnlyHint, non-destructive and closed-world, so 'Read-only' adds nothing. What does add value is the return-content disclosure (plain text with ## headings, translation state), which matters because no output schema exists. Missing are the not-found behavior and any permission/visibility constraints.

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?

One dense, front-loaded sentence with no padding; the returned-field list is long but each item is informative. The trailing 'Read-only' is the one redundant fragment given the annotations.

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 one-parameter read tool, the description covers the resource, the return payload, and (via annotations) the safety profile. It falls short on id discovery and error behavior, but nothing critical to invoking it is absent.

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?

The single parameter is documented only as an integer with no schema description (0% coverage). The description confirms 'by id' is the post id and that it is a singular lookup, but it adds nothing about where the id comes from or its format.

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 states a specific verb (get) and resource (one blog post) and enumerates exactly what comes back: full text, excerpt, SEO fields, status, publish time, public address, translation state. That clearly separates it from blog_list_posts, though no sibling is named explicitly.

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?

Usage is only implied by the name and the 'by id' phrasing. There is no explicit statement that this is for fetching a single known post, no pointer to blog_list_posts for discovering an id, and no note about whether drafts/unpublished posts are retrievable despite the status field.

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