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

Annotations already declare destructiveHint=false and readOnlyHint=false; the description reinforces this by stating the operation is non-destructive and leaves the source database unchanged, which is genuinely useful for an agent worried about data loss. It stops short of describing provisioning time, naming conflicts on newName, or auth requirements.

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 NEW-instance/non-destructive point front-loaded. Every clause earns its place.

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?

Covers the single most important semantic (a new instance is created and the source is safe) for a three-param mutation with no annotations on return behavior and no output schema. It omits any guidance on the undocumented identifiers or the expected result of the call, leaving the definition minimally viable.

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 only 33%: newName has a description, but snapshotId and managedDatabaseId are entirely undocumented, and the description adds nothing about any parameter. With the schema covering only one of three params, the description fails to compensate for the gap.

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 (Restore) and resource (snapshot into a managed database instance) plus the key qualifier that the target is a NEW instance. This differentiates it in spirit from the sibling restore tools (nexusai_db_restore, nexusai_db_restore_to), but it never names them, so the differentiation is implicit 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 implies when to use it (you want a copy of a snapshot in a separate instance rather than an in-place restore) but gives no explicit when-not conditions and does not point to alternatives such as nexusai_db_restore_to or nexusai_managed_db_snapshot_create. Usage is inferable, not stated.

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