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

With no annotations, the description carries the full burden and discloses the authentication flow, the approval-page interaction, the 40-second wait, and the signed-in status behavior. It does not cover failure modes such as denied approval, expired codes, or timeout behavior beyond the wait duration, so it is strong but not exhaustive.

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 front-loaded with the main action and then walks through the stateful flow in clear steps. It is appropriately sized for an auth tool with no annotations, though the final 'Free.' sentence is unnecessary and could be dropped.

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 the authentication complexity and lack of annotations or output schema, the description explains the key return values (link, code, working site) and the multi-step approval process. It is nearly complete, with minor gaps around error handling and repeated-call semantics when already signed in.

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 100%; the single client parameter is fully documented in the schema with an enum and default. The description adds no additional meaning about the parameter, so the baseline of 3 is appropriate.

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?

States a specific verb and resource: signs the session in to Shipfound from the chat. It is clearly distinguishable from all sibling tools, which are analytics, content, or app-management operations, and no schema inspection is needed to understand its role.

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?

Gives explicit state-dependent instructions: when signed out, the first call returns a link and code and must be followed by a second call after the founder approves; later calls wait up to 40 seconds. When signed in, it reports the working site. There is no ambiguity about when or 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.