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

With no annotations, the description carries the full burden. It usefully discloses the auth context ("Platform staff only (account session)") and that it acts only on the caller's own access, but says nothing about reversibility, idempotency, or what happens to the underlying access after ending it.

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 short sentences, zero filler, with the permission scope front-loaded ahead of the action. Nothing can be trimmed without losing meaning.

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 one-parameter mutation with no annotations and no output schema, the description covers permission scope and target scope adequately. It leaves the id's referent and the post-termination state unspecified, which is a meaningful gap for a destructive-style operation.

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 single id parameter has 0% schema description coverage, so the description is the only clue to its meaning. "Your own pending request or active support access" implies the id identifies that request/access, but it never states which entity the UUID refers to or whether the same id space covers both pending and active records.

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 ("End") and a clearly bounded resource ("your own pending request or active support access early"), which an agent can distinguish from the sibling platform_access_request (create) and platform_access_list (view). It does not explicitly name those siblings, 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 through the precondition "Platform staff only (account session)" and the scope "your own pending request or active support access," which tells the agent this terminates rather than creates access. However, it never names alternatives such as support_revoke or platform_access_list, nor states when-not to use it.

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