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

Annotations cover the safety profile (readOnlyHint=false, idempotentHint=false, destructiveHint=false), and the description adds genuinely non-obvious behavior: the grant is request-based (an author must approve) and, once approved, persists to presentations added later. It does not say how the request is surfaced to the author or what happens while it is pending, which keeps it below 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?

Two sentences, front-loaded with the action and target, then the role semantics, then the scope-of-approval consequence. No filler, no restatement of the title, and every clause carries information an agent needs.

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 an output schema present, return values need not be described, and the description covers the action, both parameter effects, and the durable scope of the grant. It stops short of stating that access is not immediate (pending author approval) or how the requester learns of the outcome, which a request-style tool with idempotentHint=false would ideally clarify.

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 baseline is 3, but the description adds meaning beyond the enum labels: "view" grants read of private presentations rather than mere metadata visibility, and the role applies project-wide rather than to a single item. It says nothing about the optional message parameter, but the schema already documents it.

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 and resource (ask the project's author for access) and defines the scope of what is being requested, including that it covers every presentation of the project. It implicitly contrasts with the sibling request_access (per-presentation) via "access to all of it" and "counts for every presentation", but never names that sibling, so the differentiation is inference rather than explicit.

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 explains what the two roles mean and what approval grants (including future presentations), which implies when each role is appropriate. However, it gives no explicit when-to-use guidance relative to request_access, get_access, or set_access, and no preconditions such as needing to know the project slug or that a human must approve.

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