Copywriter brief

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

Beyond the annotations, the description adds one useful behavioral note: the operation may consume SEO Intellect account limits. However, it does not disclose the async task pattern visible in the schema—first call can return a task_id, and the second variant resumes waiting—which is important for a non-readonly operation. No contradiction with the annotations.

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 short and front-loads the primary purpose in the first sentence. The 'Upstream API tool: copyrighters' sentence adds little actionable value, but the overall length is appropriate and there is no fluff.

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 tool with a two-mode async schema and no output schema, the description is too thin: it omits that a task_id can be returned and later reused, what the return value looks like, and which inputs are required. An agent would need to inspect the schema closely to invoke this tool correctly, and even then several parameters are not described.

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 description only loosely maps to parameters: 'keyword signals' hints at keywords, and 'SERP competitors' hints at SERP-related inputs, but it does not explain required inputs like se, region, or the task_id continuation mode. Since the schema provides some parameter descriptions for timeout_ms, wait_for_result, poll_interval_ms, and task_id, the baseline is acceptable, but the description adds little 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 states a specific action—'Build a content brief'—and names the inputs ('SERP competitors and keyword signals'), which clearly identifies the tool's resource and output. It does not explicitly contrast with sibling tools, but the content-brief deliverable is distinctive enough among the listed siblings.

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 purpose implies the tool should be used when a content brief is needed from SERP and keyword data, but there is no explicit when-to-use versus alternatives or any exclusion guidance. Despite many sibling SEO tools, the description does not say when to prefer this over related tools like competitors or lsi.

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