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

The description adds behavioral context beyond annotations by explaining the browser login flow, the permanent vs session-only distinction, and the config header option. It does not cover response details or error handling, but the key side effects are 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 information-dense and every sentence serves a purpose, though the phrasing is a bit run-on. It is not overly long and conveys necessary usage details.

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?

For a simple auth tool with no output schema, the description explains the main flows and configuration, but it omits explicit return values for token submission and potential error cases, leaving some inference required.

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 schema has one optional parameter with no description, and the description fully compensates by explaining that 'token' is a JWT used for session-only login and that no arguments returns the link. This gives complete parameter semantics.

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 an IDE agent via browser login and token submission. It distinguishes from siblings by being the dedicated auth tool, though it does not explicitly contrast with 'connect'.

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 provides explicit usage guidance: permanent configuration via Authorization header, session-only login via pasted token, and calling with no args to get the link. It does not mention alternatives like 'connect', but the two described modes give clear context.

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