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

The description adds transparency beyond annotations by explaining the dual nature (permanent vs session) and that no args returns a link. It implies side effects (modifying server config) but does not contradict the idempotentHint and non-destructive annotations. The added context about permanent vs session is valuable.

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 somewhat lengthy but each sentence adds essential information: how to obtain the token, permanent vs session usage, and fallback to get the link. No superfluous content; it is appropriately detailed 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?

The description covers the main behavioral aspects: how to authenticate, what arguments to pass, and the distinction between permanent and session modes. Since there is no output schema, it does not need to explain return values, but it could have mentioned the expected response format for completeness. Overall, it is complete enough for typical usage.

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 single parameter `token` is clearly explained: it is the JWT to be used for session login, and the description notes that it is optional (can call with no args to get the link). This fully covers the schema's minimal definition.

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 tool's purpose: authenticating the user via a browser login and token, with options for permanent or session-based access. It distinguishes itself from sibling tools like 'connect' and 'marketplace' by focusing solely on authentication.

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 provides explicit usage instructions, explaining the best practice (adding token to server config for permanent connection), alternative (session-only login), and how to invoke (with or without args). It does not explicitly compare to other tools, but the usage context is clear and actionable.

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