Open Single Send Stats

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is well covered. The description adds a meaningful behavioral clue that this opens a UI page rather than returning data, which is useful for distinguishing it from data-fetching siblings. It does not mention browser-session requirements or what the caller receives, but annotations carry most of the burden.

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 sentence with no filler and front-loads the action and resource. It loses a point because the trailing phrase 'for a specific campaign' is somewhat redundant with the parameter and could have been more precise.

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 one-parameter navigation tool with rich annotations and full schema coverage, the description is minimally adequate. It does not explain what the agent should expect after invoking it—such as a URL, success flag, or browser navigation—which would improve completeness given there is no output schema.

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 input schema fully documents singlesend_id with a clear description, so the baseline is 3. The description adds no additional meaning about the ID format, where to find it, or expected values, and 'specific campaign' is slightly misaligned with the parameter's 'single send' terminology.

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 ('Open') and the resource ('single send stats page'), which distinguishes it from sibling open_* tools like open_single_send_creator and open_automation_editor. The phrase 'for a specific campaign' is slightly imprecise compared to the parameter name singlesend_id but does not obscure the purpose.

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 conveys an implied usage: when you need to open the stats page for a particular single send. However, it does not explicitly state when not to use it or mention alternatives such as get_single_send or get_global_stats, leaving usage guidance largely to inference.

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