ping_pong

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

No annotations are provided, but the description discloses internal behavior in detail: continuous fire-and-forget SET_RELAY_MASK commands, automatic disconnection at start/end, compatibility with TCP transparent devices (V4/V5), and a final status read to confirm the endpoint. This is strong behavioral transparency beyond what schema or annotations would provide.

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 compact yet dense; every sentence adds value: behavior, internal mechanics, compatibility, parameters, and natural language mapping. It is well-structured and front-loaded with the core purpose.

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?

The description covers purpose, mechanism, parameter defaults, and usage triggers, which is substantial for a tool without an output schema. However, it does not explicitly state what the tool returns, leaving some ambiguity about the result of the call. Minor gap but overall quite 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?

Schema description coverage is 100%, with rich per-parameter documentation including constraints (e.g., end cannot be less than start) and examples. The description's parameter list mostly restates names/defaults without adding new semantic information, so the baseline of 3 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 explicitly states it performs a single-light ping-pong bounce animation between start and end circuits, providing a specific verb and resource. It also lists natural language aliases ('跑马灯、ping-pong、来回弹跳、弹弹球'), which clearly distinguishes it from siblings like blink_multi or momentary tools.

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 maps natural language phrases to the tool, giving clear trigger conditions for when to use it. However, it does not explicitly state when not to use it or mention alternatives, so guidance is partial but useful.

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