embedded-systems

embedded-systems is a skill for Claude Code, Codex from eric861129/SKILLS_All-in-one. It costs 59 tokens per session (1,486 once invoked), scanned A, a copy of embedded-systems, MIT.

A guide for writing firmware and real-time software for microcontrollers such as STM32 and ESP32, including systems that run without a full operating system.

In plain words
What is it for?
Use it to build device drivers, configure peripherals, write interrupt handlers, implement DMA transfers and FreeRTOS tasks, and investigate timing or power issues.
Why use it?
It helps manage tight limits on memory, timing, power use, and hardware access where small mistakes can cause missed deadlines or unreliable devices.

Skill for Claude CodeCodex

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

Good fit Use it to build device drivers, configure peripherals, write interrupt handlers, implement DMA transfers and FreeRTOS tasks, and investigate timing or power issues.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eric861129/skills_all-in-one/embedded-systems
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 eric861129/SKILLS_All-in-one --skill embedded-systems
Clone the repo
git clone --depth 1 https://github.com/eric861129/SKILLS_All-in-one

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 embedded-systems

README.md
[![agentmods](https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/embedded-systems/github.svg)](https://agentmods.dev/skills/eric861129/skills_all-in-one/embedded-systems)
Your own site
<a href="https://agentmods.dev/skills/eric861129/skills_all-in-one/embedded-systems"><img src="https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/embedded-systems/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 embedded-systems

Your own site · 80×15
<a href="https://agentmods.dev/skills/eric861129/skills_all-in-one/embedded-systems"><img src="https://agentmods.dev/badge/skills/eric861129/skills_all-in-one/embedded-systems.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,486 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 95% 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 $0.00059 $0.01486
Opus 5 $0.00030 $0.00743
Sonnet 5 $0.00012 $0.00297
Haiku 4.5 $0.00006 $0.00149

Measured 9d ago against content hash cfafb2c335cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

embedded-systems scanned grade A with 0 findings 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 9d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

95% identical to embedded-systems — 2 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.

public/SKILLS/Development & Code Tools/embedded-systems/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Embedded Systems Engineer

Senior embedded systems engineer with deep expertise in microcontroller programming, RTOS implementation, and hardware-software integration for resource-constrained devices.

Core Workflow

  1. Analyze constraints - Identify MCU specs, memory limits, timing requirements, power budget
  2. Design architecture - Plan task structure, interrupts, peripherals, memory layout
  3. Implement drivers - Write HAL, peripheral drivers, RTOS integration
  4. Validate implementation - Compile with -Wall -Werror, verify no warnings; run static analysis (e.g. cppcheck); confirm correct register bit-field usage against datasheet
  5. Optimize resources - Minimize code size, RAM usage, power consumption
  6. Test and verify - Validate timing with logic analyzer or oscilloscope; check stack usage with uxTaskGetStackHighWaterMark(); measure ISR latency; confirm no missed deadlines under worst-case load; if issues found, return to step 4

Reference Guide

Load detailed guidance based on context:

Topic Reference Load When
RTOS Patterns references/rtos-patterns.md FreeRTOS tasks, queues, synchronization
Microcontroller references/microcontroller-programming.md Bare-metal, registers, peripherals, interrupts
Power Management references/power-optimization.md Sleep modes, low-power design, battery life
Communication references/communication-protocols.md I2C, SPI, UART, CAN implementation
Memory & Performance references/memory-optimization.md Code size, RAM usage, flash management

Constraints

MUST DO

  • Optimize for code size and RAM usage
  • Use volatile for hardware registers and ISR-shared variables
  • Implement proper interrupt handling (short ISRs, defer work to tasks)
  • Add watchdog timer for reliability
  • Use proper synchronization primitives
  • Document resource usage (flash, RAM, power)
  • Handle all error conditions
  • Consider timing constraints and jitter

Read the full file on GitHub · 168 lines

Files

What ships with it

5 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. 9d ago First seen · 168 lines · 59 tokens per session scan A cfafb2c335cf

Subscribe to this mod's changes

embedded-systems is a skill published in the GitHub repository eric861129/SKILLS_All-in-one (52 stars, last pushed 4mo ago), licensed MIT. It adds 59 tokens to every session and 1,486 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to embedded-systems, differing in 2 lines, and is treated as a copy.

Related

Other skills, from other repositories

agopengps-knowledge-patch

Use this skill when designing, extending, deploying, or diagnosing AgOpenGPS, AgIO, AgValoniaGPS, AgOpenWeb, GNSS correction paths, autosteer hardware, or machine-control hardware. Start by identifying the exact application release, codebase, board revision, firmware source commit, and operating mode.

Nevaberry/nevaberry-plugins · 12 tokens

homekit

Skill "homekit" from rodaddy/mcp2cli, covering homekit, quick reference and usage.

rodaddy/mcp2cli · 9 tokens

dashiai-ppt

A presentation-making add-on that creates an HTML slide deck from preset visual page designs. The result can open offline in a browser and can be exported as a PowerPoint or PDF file.

huangrichao2020/pretty-skills · 62 tokens

skillnote

Self-hosted skill registry for OpenClaw. Stores procedures your team writes (name, description, body), syncs them to disk before each task, and collects which-helped/which-failed signals from the agent so the registry improves over time.

luna-prompts/skillnote · 54 tokens

bitcoin-hardware-trezor

Trezor hardware wallets: Model T, Model One, Trezor Safe 3, Safe 5. Trezor Suite, trezorctl, USB protocol, BIP32 derivation, passphrase support, Shamir Backup. USE WHEN: integrating with Trezor, supporting Trezor in app, troubleshooting Trezor signing.

claude-dev-suite/claude-dev-suite · 81 tokens

deno-knowledge-patch

Use this skill when choosing current Deno runtime APIs, CLI options, configuration, dependency behavior, Node compatibility, or deployment workflows. Open the topic reference before changing a project because several commands, flags, APIs, and defaults changed more than once.

Nevaberry/nevaberry-plugins · 9 tokens