pbs_tape_media_sets

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

Without annotations, the description transparently declares the tool is READ-ONLY, details the absence of a label-text field, and explains how media-set-name is generated. It also notes a config requirement. This adds significant behavioral context beyond the name and schema.

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?

The description is relatively concise, front-loading the core purpose. However, the formatting with caps and inline dash-clauses makes it slightly harder to parse, though it remains informative without unnecessary words.

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?

Given the presence of an output schema and the relatively simple nature of a list tool, the description adequately covers behavioral traits and prerequisites. It could add more detail on error conditions or scope, but it is largely complete for agent usage.

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 100%, so the baseline is 3. The description adds no additional meaning to the single optional parameter (proximo_target), which is already adequately described in the schema.

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 clearly states 'READ-ONLY: list media sets', identifying the action and resource. It explicitly differentiates from sibling pbs_tape_media_list by noting the absence of a label-text field and explaining the naming origin, distinguishing between the two tools.

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 this tool (for listing media sets without physical labels) and mentions the prerequisite 'Needs PROXIMO_PBS_* config'. However, it does not explicitly state when not to use it or name alternative tools beyond the implicit comparison.

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