get_user_stats

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

Discloses read-only nature, API key requirement, and rate limit (30/min per user). No annotations exist, so the description carries full burden; it adequately covers behavioral traits for a safe read operation.

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?

Three concise sentences front-load the purpose and add necessary behavioral info without redundancy. Every sentence adds value.

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?

Provides enough context for a parameterless tool: what it reads, when to use it, and constraints. Lacks details on return format, but acceptable for simple stats retrieval.

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?

No parameters in input schema, so baseline score is 4. Description does not need to add parameter information.

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 it reads usage counters (searches, emails, quota). It distinguishes itself from siblings 'search_leads' and 'verify_email' by specifying a different resource and action.

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?

Explicitly advises to use before batch operations to check allowance. While it doesn't discuss when not to use or alternatives, the provided context is sufficient for a simple read tool.

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