sylvia-iot-mcp

network_send_uldata

Simulate uplink data from a device on a network by providing network ID, device ID, and hexadecimal payload. Use it to test IoT data ingestion and processing workflows without physical hardware.

Instructions

Simulate uplink data from a device via a network.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "networkId": "<networkId>",
      "deviceId": "<deviceId>",
      "payload": "<payload>"
    },
    "name": "network_send_uldata"
  }
}

Input Schema

Name	Required	Description
`payload`	Yes	Data payload in hexadecimal string format.
`deviceId`	Yes	Source device ID.
`networkId`	Yes	The network ID.

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Sep 6, 2026

TDQS

B3.1/5.0

Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden. It only says 'simulate' without disclosing side effects such as whether the data is stored, whether it appears in uplink data lists, whether the network/device must already exist, or what the response looks like. This is too sparse for an action that creates data.

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

Conciseness4/5

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

The definition is a single front-loaded sentence with no filler words. It is easy to parse and appropriately short, though it is slightly too terse to fully support an agent's decision-making.

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

Completeness2/5

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

For a 3-parameter simulation action with no annotations and no output schema, the description is under-specified. It does not explain return values, prerequisites, verification steps, or whether the simulated data can later be read via sibling tools like data_network_uldata_list.

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%, and the schema already documents payload, deviceId, and networkId, including the hexadecimal payload format. The description adds no additional parameter-level meaning, so it earns the baseline score for high schema coverage.

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

Purpose4/5

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

The description uses a specific verb ('Simulate') and identifies the resource/action ('uplink data from a device via a network'). It clearly conveys the tool's operation and is distinguishable from downlink-oriented siblings such as application_send_dldata because it explicitly targets uplink.

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

Usage Guidelines3/5

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

The word 'Simulate' implies the tool is for testing or injecting uplink data rather than sending real traffic. However, it does not explicitly state when to prefer this over alternatives, nor does it mention exclusions or selection criteria.

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

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