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

Annotations already declare readOnlyHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds real value beyond them by disclosing the returned content sections (symptoms, cause, solution, how to confirm), which is important since no output schema exists.

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 zero filler; the parenthetical enumerating returned fields does useful work rather than padding.

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 read-only single-record lookup with annotations covering safety, the description supplies the missing return-content detail in place of an output schema. Only edge behavior (error on unknown slug) is left unstated, a minor gap.

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 coverage is 0% — the 'slug' property has no schema description at all. The description compensates by explaining what the slug identifies and where it originates (search_fixes), which is more than the bare `string` type conveys.

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 verb and resource (read the full text of one Guides & Fixes entry) and scopes it to a single record, explicitly noting the slug comes from search_fixes. That naming of the sibling cleanly separates it from search_fixes without opening either 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?

'by slug from search_fixes' establishes the prerequisite workflow: search first, then read by slug. It gives clear usage context but offers no explicit when-not-to-use or fallback behavior (e.g., invalid/unknown slug).

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