Create a VWO campaign goal

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

Annotations indicate non-read-only and non-destructive behavior. The description adds beyond this by warning that goals on a running campaign affect reported results and can invalidate conclusions, disclosing side effects.

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 sentences efficiently convey the main action and an important caveat. No wasted words, and the critical warning is front-loaded.

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?

The description explains the goal's purpose and warns of consequences, but lacks information on the return value (e.g., created goal object). Given no output schema, a brief mention of typical response would improve completeness.

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?

All four parameters are described with schema coverage at 100%. The body parameter points to external docs and explains it's sent as-is. accountId and workspaceName provide usage guidance, and campaignId recommends prior listing.

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?

Description clearly states 'Add a new goal to a VWO campaign,' using a specific verb and resource. It distinguishes from sibling tools like vwo_get_campaign_goal and vwo_delete_campaign_goal by focusing on creation.

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 warns that changing goals on a running campaign affects results and can invalidate conclusions, providing clear context for cautious use. However, it does not explicitly state when not to use or list alternative tools.

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