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

The description discloses the side effects: the grant is made and an email is sent. It does not mention reversibility, permission requirements beyond 'Owners and tool admins', or what happens if the request is already processed. With no annotations, this is adequate but not rich.

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, each adding distinct information: the action, the effects, and the audience. No filler or repetition.

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 simple two-parameter action with no output schema, the description covers the core behavior and the actor. It could mention error cases or idempotency, but the essentials are present.

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 coverage is 100%, so the schema already documents both parameters. The description adds no extra meaning about the id or workspace beyond what the schema provides, so the baseline 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 clearly states the action ('Let a waiting person in'), the resource ('at the tier they asked for'), and the immediate effects (tool grant made, email sent). It also names the intended audience ('Owners and tool admins'), which distinguishes it from request_access and access_requests.

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 description implies the context: use this when someone is waiting for access and you are an owner/admin. It does not explicitly say when not to use it or name alternatives like set_access, but the sibling context and the phrase 'waiting person' make the usage clear.

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