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

The description discloses the main behavioral aspects: it can return a link when called without arguments, and it accepts a token for authentication. However, it does not mention potential errors (e.g., invalid token) or side effects beyond authentication, which would be transparent. Still, it provides more detail than typical annotations.

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 informative and well-structured, but slightly verbose. It could be condensed without losing key information. However, it is not excessively long and each sentence adds value, so it is still concise enough.

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 all necessary context for an agent: authentication methods, permanent vs. session options, and the no-args case. It does not require an output schema since the tool's behavior is fully described. It is complete for the intended use.

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 only parameter, 'token', is not described in the schema, but the description clarifies its purpose: it can be pasted for a session-only login or added to the server config for a permanent connection. This gives complete meaning to the parameter, fully compensating for the lack of schema description.

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: authentication for IDE agents. It provides specific instructions on how to authenticate, distinguishing it from sibling tools like connect or report_bug.

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?

It explicitly explains when to use the tool (for authentication) and gives three clear usage scenarios: adding token to config for permanent connection, pasting token for session, or calling with no args to get the link. This is more than sufficient for an agent to decide when and how to invoke it.

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