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

Annotations already establish that this is read-only, idempotent, non-destructive, and closed-world. The description adds two useful behavioral facts: no selected workspace is required and no quota is reserved. It still does not explain return behavior or error conditions.

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 short and front-loads its main claims without excessive text. It is appropriately sized, though the phrase "fresh credential/workspace discovery" remains vague rather than fully informative.

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?

With no output schema, the description should clarify what the tool actually returns, such as workspace details or credential/account information, and how it relates to sibling discovery tools. It does not provide that, leaving an important gap for an agent trying to invoke it correctly.

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%, so both the account and workspace parameters are already well documented in the schema. The description does not add parameter-specific meaning beyond that, so the baseline of 3 applies.

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 says this is for "fresh credential/workspace discovery," which gives a general purpose but does not specify exactly what is returned or how it differs from siblings such as list_workspaces, list_accounts, or whoami. It is more than a pure tautology, but the purpose remains vague.

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 statement that it "does not require a selected workspace or reserve quota" implies it can be called before workspace selection, which is useful usage context. However, it gives no explicit when-to-use guidance versus alternatives and no exclusions.

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