fly_list_volumes

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is fully covered elsewhere. The description adds only the app-scoping context and says nothing about result volume, pagination, or auth needs beyond what annotations imply.

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?

A single efficient sentence with the resource and scope front-loaded and no filler. It is perhaps too terse given the documentation gaps, but there is no structural waste.

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 simple read-only list tool with a 2-parameter schema and no output schema, the description covers the core operation but omits the api_key parameter, any auth expectation, and whether results are paginated or complete.

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%, so the description must carry the parameter burden. It implicitly maps to 'app_name' via the phrase 'attached to a Fly.io app', but the second parameter, api_key, is never mentioned, leaving authentication semantics entirely undocumented.

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 ('List') and resource ('volumes') scoped to a Fly.io app, so the operation is unambiguous. It does not distinguish itself from nearby siblings such as fly_list_apps or fly_list_machines beyond the resource noun in the name.

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: you would call it when you need volume information for an app. There is no statement about when to prefer this over fly_list_machines, fly_get_app, or other Fly.io inventory tools, and no prerequisites such as auth requirements.

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