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

Annotations only indicate idempotent/non-destructive/non-read-only; the description adds useful behavioral context: browser login requirement, permanent non-expiring vs session-only access, and token-based invocation. It does not contradict annotations and explains the underlying auth mechanism well.

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 dense but front-loaded with the core action ('log in in the browser, copy the access token'). Each sentence adds distinct value, though the final sentence is slightly run-on and could be clearer with tighter formatting.

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 one-parameter authentication tool with no output schema, the description covers the essential flow: browser login, token capture, permanent vs session-only options, and how to invoke. It could mention what exact response to expect, but the link-generation behavior is stated sufficiently.

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 fully: it explains that the single optional 'token' parameter is a JWT, shows the exact call shape ({ token: "<jwt>" }), and clarifies that calling with no args returns the login link. This goes well beyond the bare schema.

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 defines an authentication flow: log in via browser, retrieve an access token, and either configure it permanently or pass it for a session. It uses concrete verbs and describes the auth resource, though it does not explicitly distinguish itself from sibling tools like '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 gives explicit invocation guidance: add the token to server config for a permanent connection, or paste it for session-only login, with no args to get the link. It does not explicitly state when to use an alternative sibling tool, but it clearly covers the tool's own modes.

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