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

It discloses important behavior beyond annotations: browser login, copying an access token, session-only vs permanent config-based authorization, the use of `Authorization: Bearer`, and the no-args behavior that returns a login link. This aligns with the idempotentHint=annotation and gives agents useful expectations about side effects and persistence.

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 compact and dense with useful information: the authentication flow, config vs session option, and invocation guidance. It's somewhat long and run-on, but every part contributes value and it front-loads the main purpose.

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?

Given a single optional parameter, no output schema, and the listed annotations, this description covers the workflows well. It details the practical options and the login sequence, although it doesn't specify what the tool returns on success, failure, or when the token is invalid.

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%, but the description compensates by explaining what the `token` parameter should contain (a pasted JWT) and that omitting the parameter means 'get the login link'. It does not give token format details or describe any other semantics, but the single optional parameter is well contextualized.

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 identifies an authentication/login operation: 'log in... copy the access token' and gives specific invocation modes, including both token-paste and no-argument link retrieval. It distinguishes itself from the sibling tools by describing the IDE auth workflow rather than a generic connect or toolkit action.

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 explicit use-case context: prefer adding the token to config for a permanent connection, or use the session-only token call after the user pastes a JWT, or call with no args to retrieve a login link. It explains the main modes clearly, though it doesn't explicitly describe when not to use this tool relative to sibling tools like 'connect'.

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