check_account

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

No annotations are supplied, so the description carries the disclosure burden. "Check" implies a read-only, self-scoped lookup and the field list tells the agent what comes back, but nothing is said about authentication requirements, whether plan limits or quota details are included, or rate limiting.

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?

A single tight sentence that front-loads the action and then the payload. Every clause earns its place and there is no redundancy or filler.

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?

There is no output schema, so the description usefully compensates by naming the returned fields. For a zero-param, self-scoped read this is close to complete; only auth/permission behavior and any plan-related caveats would have added value.

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 tool takes zero parameters, so there is no parameter semantics to document; baseline 4 applies. The description correctly does not invent arguments.

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 gives a specific verb+resource ("Check your Truelist account info") and enumerates the exact fields surfaced (name, email, plan, admin status), so an agent knows precisely what this returns. It does not explicitly contrast itself with the siblings, though those are email-validation tools in an adjacent domain, making the distinction fairly obvious.

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?

Usage is implied: call this to inspect the current account's profile and plan. There is no explicit when-to-use, when-not-to-use, or named alternative, but the sibling tools (validate_email/validate_emails) are functionally unrelated so no routing ambiguity is created.

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