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

Annotations only declare the non-read-only, idempotent, non-destructive profile; the description adds the materially important behavior that nothing is enrolled without an explicit owner click in the browser and that the runner self-enrolls afterward. That is exactly the kind of consequence disclosure annotations cannot carry. It omits what a denied request or an in-flight request looks like, which keeps it short of 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?

Front-loaded with the access restriction, then the two action modes in quoted form, then the approval consequence. Dense but every sentence carries information. The quoted action labels make it slightly choppy to read, though nothing is redundant.

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 2-parameter tool with full schema coverage, no output schema, and annotations present, the description covers scope, preconditions, and the approval lifecycle. The main remaining gap is outcome detail (what list returns for already-pending requests, what happens on denial), which is a modest omission rather than a blocker.

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 both parameters are already documented with enums and defaults. The description restates the action semantics ("list" shows what could be connected; "request" asks the owner to approve) with only marginal added meaning beyond the schema's own glosses, so 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 names both operations concretely: "list" shows unenrolled coding CLIs on this computer plus pending owner requests, and "request" files an approval request. That is a specific verb+resource pairing an agent can act on, though the tool's underlying subject (what the CLIs get enrolled into) is only implied by the name rather than stated.

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?

It states a hard precondition ("Primary agent only") and an explicit sequencing rule ("confirm with your owner first" before requesting), which is real when-to-use guidance. It does not name sibling alternatives such as find_agents or the access_request_* family, so routing between similar-looking tools is left to inference.

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