Device Eventlog Add

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

Annotations (readOnlyHint=false, idempotentHint=false, destructiveHint=false) already establish this as a non-idempotent write that is not destructive. The description adds essentially nothing beyond that — no mention of device-existence requirements, payload limits, side effects, or whether entries are appended. All-false annotations carry the behavioral burden and the description does not enrich them.

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 front-loaded sentence with zero filler. Every word adds meaning, and the size is proportionate to a two-parameter tool.

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?

Although the output schema covers return values and the input schema documents parameters, the description is incomplete for a mutation tool: it does not state that the hostname must reference an existing device, how this relates to logs_eventlog, or what happens on repeated calls. An agent is left to infer operational context.

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 the schema documents hostname and payload (including text/type/severity sub-fields). The description contributes no parameter information, so the baseline of 3 is appropriate; a small gap is that the severity range (1-5) direction is not clarified anywhere.

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 ('Add') with a specific resource ('custom event log entry') and target ('a device'). The write polarity clearly separates it from read-oriented siblings like logs_eventlog, though it does not explicitly name an alternative.

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 guidance on when to use this tool versus alternatives, no prerequisites (e.g., the device must already exist), and no conditions or exclusions. The only implied usage is the verb itself, which does not rise to real guidance.

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