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mcp-divoom-lan

mcp-divoom-lan

Official

pixoo64_clear_text

Clears HTTP text and display-list overlays on PIXOO64 devices (hardware 90/92/96) over LAN, removing leftover on-screen messages using a direct target or discovered hardware profile.

Instructions

Clear all HTTP text and display-list overlays using Draw/ClearHttpText. PIXOO64 Hardware 90/92/96 only. Provide target.hardware for direct LAN use, or resolve it using device discovery.

Input Schema

NameRequiredDescriptionDefault
targetNoOptional per-call target override. If omitted, environment variables are used.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.3.0

TDQS

A4/5.0
Behavior3/5

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

With no annotations, the description carries the full behavioral burden. It usefully discloses what is cleared and the hardware scope, but it does not describe whether the clear is reversible, what response is returned, or any auth/error behavior. This is adequate but leaves meaningful behavioral gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three short sentences front-load the action and then cover hardware scope and target setup. There is no redundant or filler text, and every sentence contributes useful information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a zero-required-parameter tool with a richly documented nested target schema and no output schema, the description covers purpose, hardware constraints, and target resolution. It is only missing explicit return/error behavior, which is a minor gap given the absence of an output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the nested target fields are already documented. The description adds minor guidance by pointing at target.hardware for direct LAN use and device discovery, but most parameter semantics remain in the schema, making baseline 3 appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description gives a specific verb ('Clear'), an explicit resource ('all HTTP text and display-list overlays'), and the underlying command ('Draw/ClearHttpText'). It also scopes the operation to particular PIXOO64 hardware profiles, so an agent can immediately distinguish it from text-sending siblings like pixoo64_send_text.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The hardware restriction ('PIXOO64 Hardware 90/92/96 only') acts as a clear when-not condition, and the description tells the agent how to supply or resolve the target. It does not explicitly name alternative tools such as timegate_clear_text or describe sibling selection, but the operational context is clear.

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