send_enter

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

With no annotations, the description carries the full burden and does a good job: it states the primary action and the outcome ('Returns the resulting screen'). This goes beyond the name by confirming the tool both sends the key and waits for/returns the updated screen state.

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 containing exactly two pieces of information: what is sent and what is returned. There is no filler, repetition, or ambiguity.

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?

For a parameterless action with an output schema, the description covers the essential call semantics — the specific key and the response. It doesn't mention preconditions like an active connection, but that is plausibly handled by the broader tool set and the simplicity of the operation.

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 input schema is empty, and the parameter count is 0, so there are no parameters to describe. The baseline for 0 params is 4, and the description adds no unnecessary parameter detail.

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?

Identifies the exact action (send the ENTER AID key) and specifies the resource (the ENTER AID key), clearly differentiating it from siblings like send_pf, send_pa, and send_clear. Also states the resulting action returns the screen, which adds operational clarity.

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?

No guidance on when to use this tool instead of alternatives such as send_pf or send_keys. The context of the tool is implied by the name, but the description does not provide explicit when-to-use or exclusions.

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