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

With no annotations, the description carries the full burden and does well: it discloses the required permission level, the caller's resulting role ('You become an admin'), the side effect on the target ('any agent limit on them is removed'), and the email notification. It omits reversibility/confirmation requirements, which keeps it from a 5.

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 clauses, front-loaded with the permission gate before the effect and notification. No filler and every sentence carries distinct information.

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 an unannotated mutation with no output schema, the description supplies permission requirements, role side effects, and a notification side effect. It lacks any statement about irreversibility or required confirmation, but that is the only notable gap.

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 0% and neither of the two UUID parameters (workspaceId, accountId) is explained in the description. The agent can infer that accountId is the member being promoted from 'make another member the owner', but the mapping is left implicit, so the description does not compensate for the coverage gap.

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 precise verb and resource — making another member the owner — which is a unique action distinct from members_update, members_invite, and members_remove in the sibling list. An agent can identify the operation without opening the schema.

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?

Sets an explicit precondition: 'Owner only, signed-in session', telling the agent when this call is permitted. It does not name alternatives (e.g., members_update for non-ownership role changes) or state when not to use it, so it falls short of a 5.

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