list_backups

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

With no annotations, the description carries the full burden: it implies a read of backup jobs and hints that each job comes with its last run, but says nothing about permissions, ordering, volume of results, or error behavior. The second sentence adds domain vocabulary about volume jobs but no operational behavior.

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?

It is short and front-loads the resource, which is good. However, the second sentence is a dangling clarification that references 'the service' without ever establishing context, so part of the limited space is spent on an ambiguous aside.

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?

No output schema exists, so the description should explain what a call returns, yet it only vaguely mentions 'last run' without field names or shape. For a zero-parameter list tool with no annotations, the agent is left without enough to predict the response or confirm read-only safety.

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 tool takes zero parameters, so the schema-side baseline is 4. The description instead spends its words on interpreting a returned field (volume being a named volume or a server path), which is useful but does not substitute for parameter documentation since none exists.

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 noun phrase "Backup jobs with their last run" identifies the resource and a bit of content, but there is no verb and no differentiation from siblings run_backup and backup_run. An agent can guess this is a read/list of backup jobs, but the description never says 'list' explicitly.

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?

There is no indication of when to call this versus run_backup (which presumably triggers a backup) or backup_run (which presumably fetches a single run). No prerequisites, no contexts, no exclusions are given.

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