host_printer_read

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

No annotations are provided, so the description carries the full burden. It adds useful behavioral signals by implying read-only access and explicitly stating 'No credentials or commands,' which tells the agent no auth or command execution is involved. It still does not explain failure behavior when data is not exposed, nor what side effects, if any, exist.

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 a single efficient sentence with no redundant filler. The only weakness is that 'if exposed' is slightly cryptic and could be clarified without adding much length.

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?

An output schema exists, so return-value details need not be in the description. Still, for a parameterless read tool, the description should clarify what 'selected printer' means and how it relates to overlapping siblings such as printer_status; those gaps make it only minimally 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?

The tool has zero parameters, so there are no parameter semantics to explain. The schema is empty and fully described by its structure; the baseline for a parameterless tool applies.

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 names a read operation and a set of printer attributes (agent/link/online/firmware), so the basic purpose is inferable. However, 'if exposed' leaves the scope vague, and it does not distinguish this tool from closely named siblings such as printer_status or printer_capabilities.

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 guidance on when to use this tool, when not to use it, or which sibling to choose instead. The phrase 'No credentials or commands' implies a safe read context, but it is not framed as usage guidance or as an alternative-selection rule.

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