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

The annotations already establish that this is a read-only, non-open-world operation, lowering the disclosure burden. The description adds that the result includes the signed-in user and their organizations, but it does not mention authentication requirements, error behavior, or any structural detail about the returned data.

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 a single, front-loaded sentence with no wasted words. It immediately conveys the core identity and scope of the operation.

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 no-parameter identity tool, the description covers the essential purpose, but with no output schema it only minimally describes return values and does not clarify relationships to sibling tools or authentication context. It is adequate but leaves meaningful gaps for an agent deciding between this and org_get or org_list.

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 has zero parameters, so parameter semantics are inherently simple and the baseline is 4. The description does not need to explain any input parameters, and the empty schema is consistent with the no-argument nature of the tool.

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 states a specific verb ('Returns') and resource ('the signed-in user and the organizations they belong to'), making the tool's purpose immediately clear. It does not explicitly differentiate itself from nearby siblings like org_get, org_list, or org_member_list, so it falls short of a 5.

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 description: call this when you need the current signed-in identity and its organization memberships. However, there is no explicit when-to-use guidance, no exclusions, and no reference to alternative tools such as org_get or org_list.

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