wetrack_sign_in

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

With no annotations, the description carries the full burden. It explicitly states that it returns a JWT token and stores it for all future requests, which is a key side effect. It also mentions the .env condition, indicating when it's needed. It doesn't cover error cases or token overwrite behavior, but the main behavioral trait is disclosed.

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 three short sentences, each adding value. The first states purpose, the second states the return and side effect, and the third gives usage context. No fluff, front-loaded, and well-structured.

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?

The description is quite complete for a simple authentication tool. It covers the usage condition, the return value, and the storage behavior. It doesn't mention error handling or session replacement, but those are minor for a sign-in tool, especially since an output schema exists that likely describes the JWT response.

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 coverage is 0%, so the description must compensate. It directly links the parameters to the action: 'Sign in to WeTrack with email and password.' This clarifies the purpose of both fields. While it doesn't add extra format hints, the mapping is obvious given the parameter names.

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 verb (sign in) and resource (WeTrack), and explicitly mentions the credential type (email/password). It distinguishes itself from siblings like wetrack_sign_out and wetrack_set_token by focusing on email/password authentication and token storage.

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 gives an explicit condition: 'Use this first if you haven't set WETRACK_EMAIL/PASSWORD in .env.' This provides clear when-to-use guidance. However, it doesn't mention alternatives like Microsoft sign-in or token-based auth, which are present among siblings, so it's not fully comprehensive.

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