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

With no annotations, the description carries the full burden. It does disclose the core side effect (clearing the current session), but says nothing about whether auth is required, whether the operation is idempotent, whether it invalidates only this session vs. all tokens, or what failure looks like.

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?

A single front-loaded sentence with the action first and the effect second. Every word earns its place; no filler or redundancy.

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 parameterless, session-ending tool with no output schema and no annotations, the description conveys the essential behavior. Minor gap: it does not mention the return value or post-call state, though that is marginal for a logout action.

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 tool takes zero parameters, so per the baseline there is nothing for the description to document. No parameter information is needed or missing.

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 (log out) and resource (Liberty.win session), plus the effect ('clearing the current session'). The inverse relationship with the sibling 'login' is obvious, though the description never names an alternative or otherwise differentiates itself explicitly.

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?

Usage is implied by the verb and by the presence of sibling tools like 'login', 'register', and 'whoami'; an agent can infer this ends an authenticated session. However, there is no explicit when-to-use or when-not-to-use guidance, and no stated prerequisites (e.g., must be logged in).

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