trigger_enter

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It implies a state change by saying "Enter," but does not state whether the device mode changes, whether it is reversible, what permissions are needed, or what happens on failure.

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 front-loaded sentence with no filler, and the protocol list is placed where the agent will see it. Its brevity is efficient, though the protocol abbreviations are cryptic.

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 annotations and no output schema, the description needs to explain side effects and return behavior, but it does not. It also leaves the optional timeout_s parameter undocumented, making it insufficient for an agent to call this confidently.

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 0%, so the description must compensate. It does list allowed protocol strings, which is useful beyond the schema, but it never explains what pd, ufcs, qc, or the other abbreviations mean, and it completely omits the timeout_s parameter.

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 a specific action and resource ("Enter a trigger protocol") and lists protocol identifiers, so the agent can infer this selects a trigger protocol mode. However, "enter" is vague about what actually happens, and it does not distinguish this tool from siblings such as trigger_fast_charge, trigger_pd_request, or trigger_reset.

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?

The description provides no guidance on when to use this tool versus the many sibling trigger_* tools, nor any prerequisites or when-not conditions. It only enumerates protocol values, leaving selection between alternatives to inference.

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