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 well covered without the description. The description adds only the word "public," hinting that no authentication is required, but says nothing about the format, freshness, or version-specificity of the returned guidance.

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 short sentence, front-loaded with the verb and resource, with no filler or redundant restatement of the tool name. Every word carries information.

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 trivial one-enum-parameter read-only tool with no output schema, the definition covers the essential who/what. The main remaining gap is that, absent an output schema, it never indicates what form the guidance takes (e.g., markdown text, steps, config snippets).

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?

There is a single required parameter with 0% schema description coverage, but its enum of traefik, win-acme and certbot is self-documenting. The description's phrase "a supported ACME client" adds the useful constraint that only enum values are valid, yet it does not say how unsupported clients are handled or what each client's guidance contains.

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 pairs a specific verb ("Get") with a specific resource ("public integration guidance") and scopes it to "a supported ACME client." This is clearly distinguishable from sibling tools like build_client_config and generate_update_script, though it never names those siblings 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?

The phrase "public integration guidance" implies the tool is for retrieving documentation rather than generating or configuring anything, which indirectly separates it from its siblings. However, there is no explicit when-to-use statement, no mention of the alternative tools, and no prerequisites or exclusions.

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