ebay_end_campaign

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

With no annotations, the description must fully disclose behavior. It states the permanent outcome but omits details about side effects (e.g., impact on ads, budget, or associated data). No permission or confirmation requirements are mentioned.

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 two short sentences with no redundancy. It front-loads the key action and the critical constraint of permanence. Every word contributes meaning.

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 simple tool with one parameter and no output schema, the description adequately covers the core action and its irreversibility. However, additional context about what happens to campaign constituents (e.g., ads, budget) 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?

Schema coverage is 100% for the single parameter 'campaignId', with a description 'Campaign ID'. The tool description does not add extra meaning about format or how to obtain the ID, so it meets baseline but adds no value beyond 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 clearly states the action ('Permanently end a marketing campaign') and the resource ('marketing campaign'). It distinguishes from sibling tools like 'pause_campaign' and 'delete_campaign' by emphasizing irreversibility.

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 use for permanent termination by stating 'Cannot be restarted after ending', but does not explicitly compare with alternatives like 'pause_campaign' or 'delete_campaign'. No when-to-use or when-not-to-use guidance is provided.

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