esp32-firmware-engineer

esp32-firmware-engineer is a skill for Codex from adamlipecz/esp32-firmware-engineer-skill. It costs 204 tokens per session (3,215 once invoked), scanned A, original, no licence file.

A skill for developing ESP32 firmware with Espressif's ESP-IDF tools. ESP32 is a family of microcontrollers, and firmware is the software that runs directly on hardware.

In plain words
What is it for?
Use it for ESP-IDF C or C++ projects involving FreeRTOS tasks, hardware interfaces, Wi-Fi or Bluetooth, updates, device security, displays, and build or flashing workflows.
Why use it?
It helps organize and troubleshoot embedded software that controls hardware, communicates over networks, and uses device peripherals.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it for ESP-IDF C or C++ projects involving FreeRTOS tasks, hardware interfaces, Wi-Fi or Bluetooth, updates, device security, displays, and build or flashing workflows.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer
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 adamlipecz/esp32-firmware-engineer-skill --skill esp32-firmware-engineer
Clone the repo
git clone --depth 1 https://github.com/adamlipecz/esp32-firmware-engineer-skill

Made for: 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 esp32-firmware-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer/github.svg)](https://agentmods.dev/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer)
Your own site
<a href="https://agentmods.dev/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer"><img src="https://agentmods.dev/badge/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer/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 esp32-firmware-engineer

Your own site · 80×15
<a href="https://agentmods.dev/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer"><img src="https://agentmods.dev/badge/skills/adamlipecz/esp32-firmware-engineer-skill/esp32-firmware-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 204 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,215 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. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk warn 25 Feb 2026
How audits are shown
Origin unknown No closer match found 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 $0.00204 $0.03215
Opus 5 $0.00102 $0.01607
Sonnet 5 $0.00041 $0.00643
Haiku 4.5 $0.00020 $0.00321

Measured 11d ago against content hash 547d2304125b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

esp32-firmware-engineer 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 11d ago.

The scan reads SKILL.md. This mod also ships 9 executable files (assets/templates/shell/zshrc-esp-idf-snippet.zsh, scripts/build.sh, scripts/check_plugin_compatibility.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

esp32-firmware-engineer/SKILL.md · 166 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

38 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. 11d ago First seen · 166 lines · 204 tokens per session scan A 547d2304125b

Subscribe to this mod's changes

esp32-firmware-engineer is a skill published in the GitHub repository adamlipecz/esp32-firmware-engineer-skill (8 stars, last pushed 6mo ago), with no licence file. It adds 204 tokens to every session and 3,215 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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