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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description adds little beyond that – no mention of error behavior for invalid or non-existent ids, no rate-limit or pagination context.

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?

Two compact sentences with the core action front-loaded and examples inline; nothing is padded. The trailing 'Returns id, title, text, and url' sentence is largely redundant given the output schema exists.

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 annotations covering safety and an output schema covering return values, the description only needs to convey the resource and id semantics, which it does. The remaining gap is the absence of sibling disambiguation among the many get_* tools.

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 100% and the single 'id' parameter is already documented with the same URL/path examples the description repeats. Baseline 3 applies since the schema does all the work and the description adds no extra format or validation detail.

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 ('Retrieve the full text of a myaiguide.co document by id') and clarifies the id format, so the action is unambiguous. It does not, however, differentiate itself from similar-looking siblings such as get_page or get_blog_post, which also appear to fetch site content.

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: the description signals this is a generic by-id fetch that accepts any site path or URL, which hints at broader applicability than the typed getters. There is no explicit statement of when to choose fetch over get_page/get_tool, nor any exclusion or precondition.

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