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

Annotations cover the safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=false) but not the operational consequences. The description adds meaningful context beyond them: uploads leave the device, and the secret token is the sole credential and is unrecoverable. That credential-loss warning is a genuine behavioral disclosure.

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?

Three short sentences, front-loaded with the core action. The middle sentence is arguably process instruction for the agent rather than tool description, but it still earns its place by establishing the consent prerequisite.

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 a single-parameter schema, no output schema and clear annotations, the description supplies what is missing: the consent precondition, the data egress warning, and the irrecoverable credential. Only minor gaps remain, such as what identifier the caller receives back.

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?

One parameter at 0% schema description coverage; the schema only shows consentToUpload is a boolean const true. The description compensates partly by stating consent must be obtained, implying the flag's meaning, but it does not explain the const/true constraint explicitly.

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 (Create) and resource (workspace) with distinguishing qualifiers: private, temporary, no sign-in. This differentiates it from create_project, though it does not explicitly name that sibling.

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 'without signing in' and the consent workflow, but the description never says when to choose this tool over create_project or when a workspace is appropriate versus a project. No exclusions or alternative routing are given.

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