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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description earns credit for disclosing two behaviors not in the structured data: the result ordering (newest first) and the fact that an in-progress backup operation is included alongside the restore points. It omits pagination or result-size limits, which is the remaining gap.

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?

One sentence, no padding, and the resource and ordering are front-loaded before the secondary detail about the in-progress operation. Nothing here could be cut without losing information.

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?

There is no output schema, so the description must sketch the return shape — it does, naming restore points plus the in-progress backup operation, and gives the ordering. For a one-parameter read-only tool with rich annotations this is nearly sufficient; the missing piece is any hint about result limits or paging.

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% and the single 'id' parameter is typed only as a non-empty string, so the description carries the burden. Saying 'of a deployment' does tell the agent the id identifies a deployment rather than a backup, but it never states this explicitly and adds no format or example detail. Meaning is added, but thinly.

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 a specific verb and resource ('List the restore points of a deployment'), adds ordering ('newest first') and a secondary payload ('the backup operation in progress'), so the agent knows exactly what comes back. It stops short of differentiating itself from the sibling backups_get, which an agent could plausibly confuse with a restore-point read.

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 by the phrase 'of a deployment', which suggests a deployment id is required to scope the call. There is no explicit when-to-use statement, no mention of backups_get as the single-item alternative, and no note on prerequisites such as authentication or deployment state.

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