get_status

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

With no annotations, the description carries the full disclosure burden and does meaningfully discharge it by listing the exact returned fields and the recommended call timing. It stops short of stating read-only/non-mutating behavior or any cost/latency characteristics, which would be the remaining gap for a zero-annotation tool.

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?

Three short sentences, front-loaded with usage guidance and then the return contents. There is mild redundancy between 'any time you need to see the physical hardware,' 'Do not wait until the end of a task,' and 'Always call this first,' which slightly dilutes the emphasis.

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 no output schema and no parameters, the description must explain returns, and it does so exhaustively; it also supplies call-timing guidance. Missing only error/edge-case behavior (e.g., what happens when the daemon is unreachable), a minor gap for such a simple read 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?

The tool takes no parameters, so the schema cannot document anything further; per the baseline for zero-parameter tools, the description is not required to compensate and a 4 is appropriate.

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 states the resource (physical hardware status) and enumerates exactly what is returned: daemon version, uptime, camera states, pause flag, buffer fill, adapters, system warnings. That lets an agent distinguish it from action-oriented siblings like capture_image, measure, or watch, though no sibling is named explicitly.

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?

Gives concrete timing context (while debugging, after reboots, during serial output, mid-process) plus an imperative 'Always call this first' and 'Do not wait until the end of a task.' It never states when NOT to use it or names an alternative, which keeps it short of a 5.

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