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

With no annotations, the description carries the full burden, and it does disclose genuine behavioral traits: role-based visibility (owner and office see any, a field worker only their own) and that the action result exists only after approval and execution. It says nothing about what happens for a nonexistent or unauthorized id (error vs. not-found), which matters for a permission-scoped read.

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, both load-bearing, with the return content front-loaded and the access rule second. It opens with a noun phrase rather than a verb, but there is no filler at all.

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 read with no annotations and no output schema, the description covers what is returned and the visibility model behind it. The remaining gap is error/permission-failure behavior, which is minor given the tool's simplicity.

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% for the single approval_id parameter, and the description adds no clarification about it. The parameter is nonetheless self-evident from its name and the schema's `format: uuid`, so the practical gap is small rather than severe.

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 identifies a specific resource (one approval request) and states what comes back (status, plus the action's result once approved and run). The word "One" implicitly distinguishes it from approvals_list, but the sibling is never named, so the differentiation is inferred 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?

Usage is only implied: a singular-resource tool taking an approval_id is obviously the lookup-by-id counterpart to approvals_list. The only explicit guidance is about visibility scoping, not about when to choose this tool over approvals_list or audit_list.

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