sendook_create_inbox

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

Annotations show readOnlyHint=false (mutation) and destructiveHint=false (not destructive). Description adds that inbox is managed, unique email, independent storage, webhooks, and returns JSON with details. No contradictions.

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?

Well-structured with summary, args, returns, examples. Front-loaded with purpose. Slightly verbose in middle paragraph but overall efficient for the complexity.

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 simple input (1 param with 2 optional properties) and output schema implied, description covers purpose, parameters, return format, and examples. Lacks error handling discussion but acceptable for this tool.

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 descriptions for name and email are already detailed and cover 100% of properties. Description adds examples but does not significantly extend beyond schema. Baseline 3 is appropriate.

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?

Clearly states 'Create a new inbox for an AI agent to send and receive emails' with specific verb and resource. Distinguishes from sibling tools like get_inbox and list_inboxes. Includes key differentiator: each inbox has independent storage and webhooks.

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?

Provides examples for creating with name or custom email, and notes email auto-generation. Implicitly guides when to use (inbox creation) but lacks explicit when-not-to-use or alternatives among siblings.

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