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

Annotations already declare readOnly, idempotent, non-destructive, closed-world. The description adds that visibility is scoped to the caller's account permissions and that org-configured approval requirements may apply, which is genuine context. It omits pagination behavior even though limit/offset exist.

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 with the operation stated first, so it is compact. However, the second sentence is about organization approval policy and does not help an agent decide or invoke, making it filler relative to the missing filtering/pagination detail.

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?

An output schema exists so return values need not be described, but for a list tool with three undocumented parameters and ~300 siblings the description leaves out scope of results, ordering, and list-vs-get distinction. It is not sufficient to call the tool confidently.

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%: limit, offset, and search carry only types and defaults. The description does not mention any of them, so an agent gets no guidance on page size limits, search semantics, or result ordering — the schema-alone baseline does not apply at this coverage level.

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?

"Read approval flow" names a verb and resource, but the name says list while the prose says read, and a sibling get_approval_flow and list_pending_approval_requests exist. An agent cannot tell from this text whether the tool returns one flow or a collection.

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 never says when to use this versus get_approval_flow, list_pending_approval_requests, or the create/update/delete siblings. The second sentence addresses permission policy rather than selection, so no routing guidance is given.

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