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hardware

hardware is a skill for Claude Code, Codex from halfmoon-labs/halfmoon. It costs 31 tokens per session (680 once invoked), scanned B, a copy of hardware, MIT.

A skill for reading current weather and forecasts, with checks to ensure the requested place matches the returned location.

In plain words
What is it for?
Use it to get current conditions or forecasts for a city, including the matched region, country, and observation time.
Why use it?
It helps avoid reporting weather for the wrong city, especially when names are ambiguous or written in another script.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 11repo 6mo ago B scan 31 tokens copy · 100% MIT

Good fit Use it to get current conditions or forecasts for a city, including the matched region, country, and observation time.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/halfmoon-labs/halfmoon/hardware
View source ↗ halfmoon-labs/halfmoon
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add halfmoon-labs/halfmoon --skill hardware
Clone the repo
git clone --depth 1 https://github.com/halfmoon-labs/halfmoon

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for hardware

README.md
[![agentmods](https://agentmods.dev/badge/skills/halfmoon-labs/halfmoon/hardware/github.svg)](https://agentmods.dev/skills/halfmoon-labs/halfmoon/hardware)
Your own site
<a href="https://agentmods.dev/skills/halfmoon-labs/halfmoon/hardware"><img src="https://agentmods.dev/badge/skills/halfmoon-labs/halfmoon/hardware/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for hardware

Your own site · 80×15
<a href="https://agentmods.dev/skills/halfmoon-labs/halfmoon/hardware"><img src="https://agentmods.dev/badge/skills/halfmoon-labs/halfmoon/hardware.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 680 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00031 $0.00680
Opus 5.5 $0.00012 $0.00272
Sonnet 5.5 $0.00006 $0.00136
Haiku 4.5 $0.00003 $0.00068

Measured 2mo ago against content hash 5a8f519f2a81, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

hardware scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

| Permission denied | Run as root or add user to `i2c` group |
Origin

This is a copy

100% identical to hardware — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

workspace/skills/hardware/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hardware (I2C / SPI)

Use the i2c and spi tools to interact with sensors, displays, and other peripherals connected to the board.

Quick Start

# 1. Find available buses
i2c detect

# 2. Scan for connected devices
i2c scan  (bus: "1")

# 3. Read from a sensor (e.g. AHT20 temperature/humidity)
i2c read  (bus: "1", address: 0x38, register: 0xAC, length: 6)

# 4. SPI devices
spi list
spi read  (device: "2.0", length: 4)

Before You Start — Pinmux Setup

Most I2C/SPI pins are shared with WiFi on Sipeed boards. You must configure pinmux before use.

See references/board-pinout.md for board-specific commands.

Common steps:

  1. Stop WiFi if using shared pins: /etc/init.d/S30wifi stop
  2. Load i2c-dev module: modprobe i2c-dev
  3. Configure pinmux with devmem (board-specific)
  4. Verify with i2c detect and i2c scan

Safety

  • Write operations require confirm: true — always confirm with the user first
  • I2C addresses are validated to 7-bit range (0x03-0x77)
  • SPI modes are validated (0-3 only)
  • Maximum per-transaction: 256 bytes (I2C), 4096 bytes (SPI)

Common Devices

See references/common-devices.md for register maps and usage of popular sensors: AHT20, BME280, SSD1306 OLED, MPU6050 IMU, DS3231 RTC, INA219 power monitor, PCA9685 PWM, and more.

Troubleshooting

Problem Solution
No I2C buses found modprobe i2c-dev and check device tree
Permission denied Run as root or add user to i2c group
No devices on scan Check wiring, pull-up resistors (4.7k typical), and pinmux
Bus number changed I2C adapter numbers can shift between boots; use i2c detect to find current assignment
WiFi stopped working I2C-1/SPI-2 share pins with WiFi SDIO; can't use both simultaneously
devmem not found Download separately or use busybox devmem
SPI transfer returns all zeros Check MISO wiring and device power
SPI transfer returns all 0xFF Device not responding; check CS pin and clock polarity (mode)

Read the full file on GitHub · 65 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 65 lines · 31 tokens per session scan B 5a8f519f2a81

Subscribe to this mod's changes

hardware is a skill published in the GitHub repository halfmoon-labs/halfmoon (11 stars, last pushed 6mo ago), licensed MIT. It adds 31 tokens to every session and 680 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). It is 100% identical to hardware, differing in 0 lines, and is treated as a copy.

Hardware and IoT
Related

hardware compared with skills from other repositories

hardware next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
hardwarehalfmoon-labs/halfmoonSkill116mo agoMITB31Claude Code, Codex
gke-compute-classesgoogle/skillsSkill23ktodayApache-2.0A83Claude Code, Codex
jetson-diagnosticNVIDIA/skillsSkill3.9ktodayApache-2.0A30Claude Code, Codex
holoscan-install-wheelNVIDIA/skillsSkill3.9ktodayApache-2.0A34Claude Code, Codex
offensive-z-waveSnailSploit/Claude-RedSkill10k25d agoMITA113Claude Code, Codex
doca-socket-relayNVIDIA/skillsSkill3.9ktodayApache-2.0A236Claude Code, Codex
hsb-flashNVIDIA/skillsSkill3.9ktodayApache-2.0B94Claude Code