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

The description adds a small behavioral detail by stating it also builds an X-Robots-Tag header. However, given readOnlyHint is present, the safety profile is already known. The description does not disclose how defaults are handled, validation, or output format, so it provides only modest transparency.

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?

The description is a single, front-loaded sentence that states the core function and scope. Every word earns its place, with no redundant or filler content.

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 8 parameters, no output schema, and minimal annotations, the description does not fully convey the tool's behavior. It omits what the generated tag looks like, how parameters interact, or any constraints on values. This is incomplete for a non-trivial generator tool.

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 description coverage is 0%, so the description must compensate. It only loosely references 'index/follow and snippet directives' without explaining each parameter's meaning, value formats (e.g., maxSnippet), or enum options. The description adds minimal value over the schema.

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 uses a specific verb ('Build') and clearly identifies the resource ('meta robots tag (and X-Robots-Tag header)'). It also mentions the input scope ('index/follow and snippet directives'), which differentiates it from sibling tools like robots-txt-generator and meta-tag-generator.

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 usage for generating a meta robots tag but provides no explicit guidance on when to use this tool versus alternatives. It does not mention any exclusions or alternative tools, leaving context-dependent decision making to the agent.

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