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

The description adds meaningful behavioral context beyond the annotations by distinguishing permanent config-based auth from session-only login and by describing what the no-args call does. It does not contradict the idempotentHint, readOnlyHint, or destructiveHint annotations, though it could be more explicit about what state is stored when a token is pasted.

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, well-structured, and front-loaded with the primary action. Every sentence carries a distinct piece of information: the login flow, the configuration alternative, and the session-only invocation options.

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 optional-token authentication tool with no output schema, the description covers the main invocation modes and server configuration path well. It does not explain failure or return-value details, but it is sufficient for an agent to correctly select and invoke the tool in common cases.

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 description coverage is 0%, and this description fully compensates by documenting the token parameter as an optional JWT, showing the exact call shape, and explaining the no-args fallback. It directly tells the agent when token should be present and what to do if the user has not pasted it yet.

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 that this tool is for authentication/login for IDE agents by directing the user to log in via the browser, copy an access token, then either configure it or paste the token into the tool. This is specific enough to distinguish authentication from the listed sibling tools, especially '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?

The description explicitly explains when to use which approach: adding the token to server config for a permanent, non-expiring connection, and pasting it into this tool for a session-only login. It also says that calling with no arguments returns the login link, which lets an agent choose the right invocation path.

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