hcloud_obs_cat

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

Annotations already declare readOnlyHint=true, idempotentHint=true and openWorldHint=true, so the safety profile is covered and the bar is lower. The description's one added behavior fact is the 'text object' restriction, which usefully implies binary or oversized objects may not be viewable, but it says nothing about encoding, truncation, size limits, or access permissions on the bucket.

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 the verb and resource front-loaded and zero filler. It is efficient but borders on under-specified rather than tightly structured, since no clause addresses scope or limits.

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?

With three required, fully documented parameters, no output schema, and annotations covering read-only/idempotent behavior, the definition is minimally viable. It leaves out the details an agent would want before calling — output format for the object body, encoding, and any size or content-type constraints — which matters for a content-retrieval tool.

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%, with region, bucket and key each documented in the input schema, so the baseline of 3 applies. The description adds no meaning beyond the schema — it does not clarify key path conventions, region format, or how the three parameters jointly identify the object.

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 uses a specific verb ('View content') with a named resource ('text object in OBS'), so an agent can tell this reads object bodies rather than listing buckets (hcloud_obs_ls) or returning metadata (hcloud_obs_stat). It stops short of explicitly naming those siblings, so differentiation is implied by the word 'content' rather than stated.

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 explicit when-to-use or when-not-to-use guidance and no mention of alternatives such as hcloud_obs_ls or hcloud_obs_stat, even though they sit in the same OBS family. The only usable signal is the word 'content', which lets the agent infer this is the read-body tool, but nothing prevents misuse on non-text objects or very large keys.

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