hcloud_list_flavors

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

Annotations already declare readOnlyHint, openWorldHint and idempotentHint, so the safety profile is covered externally. The description adds nothing beyond the name: no indication of whether results are region-scoped, whether deprecated or unavailable flavors are included, or how large the result set typically is.

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 short sentence with zero filler, which is structurally clean. However, brevity here crosses into under-specification rather than efficient communication, leaving no front-loaded operational detail.

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 fully described two-parameter schema and no output schema, the minimum an agent needs is present via annotations and schema. Still, given the crowded family of flavor-listing siblings, a sentence on scope and return content would materially help correct invocation.

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 100%, so both parameters (region, availability_zone) are documented in the schema and the baseline of 3 applies. The description does not clarify the region semantics (which region's catalog is queried) or the filtering behavior of availability_zone, so it adds no meaning beyond 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 gives a specific verb plus resource ("List available ECS instance flavors/specs"), which is enough to know it returns instance type catalog data. It is less explicit about which of the many sibling flavor tools (dcs, mrs, dws, gaussdb, elb, rds, dds) it contrasts with, relying on the tool name's prefix for differentiation.

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?

No guidance on when to use this versus the other *_list_*_flavors siblings or versus hcloud_list_servers. There is no mention of prerequisites, such as needing a region or that a region is required.

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