Resume Newsletter

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

Annotations already indicate the tool is not read-only, not destructive, and idempotent. The description adds minimal extra behavioral context beyond stating it resumes delivery; it does not describe side effects or prerequisites beyond confirmation.

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 exceptionally concise: two short sentences that convey the purpose and a usage note. No extraneous information, perfectly 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?

Given the presence of output schema, annotations, and full schema coverage, the description is sufficient. It provides the essential context for a simple resume action and includes a cautionary note, though it lacks details about what happens after resumption.

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 covers both parameters with detailed descriptions (pattern, optionality). The tool description adds no additional parameter meaning, so the score is at baseline as per guidelines.

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 ('Resume') and the resource ('a paused newsletter delivery'). It distinguishes from sibling tools like cancel_newsletter or schedule_newsletter by specifically targeting paused deliveries.

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 includes the guideline 'Use only after confirming delivery should continue,' which advises when to use the tool. However, it does not explicitly mention when not to use it or provide alternatives, leaving room for improvement.

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