Embedded Firmware Engineer

Embedded Firmware Engineer is an agent for coding agents from andywxy1/ceo-plugin. It costs 51 tokens per session (1,644 once invoked), scanned A, original, GPL-3.0.

A specialist in firmware, the software built into electronic devices to control their hardware. It covers bare-metal systems, real-time operating systems, microcontrollers, and development tools for platforms such as ESP32, STM32, and Nordic chips.

In plain words
What is it for?
Use it to develop firmware for embedded devices, including systems based on ESP32, ARM Cortex-M, STM32, Nordic chips, FreeRTOS, or Zephyr.
Why use it?
It helps build device software that must interact directly with hardware and often respond within strict timing requirements.

Agent

Part of the ceo plugin — 148 agents shipped together

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.

agentmods
npx agentmods add agents/andywxy1/ceo-plugin/engineering-embedded-firmware-engineer
Clone the repo
git clone --depth 1 https://github.com/andywxy1/ceo-plugin

Or install ceo, the plugin that ships this one along with the rest of its 148 agents.

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 Firmware Engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/andywxy1/ceo-plugin/engineering-embedded-firmware-engineer.svg)](https://agentmods.dev/agents/andywxy1/ceo-plugin/engineering-embedded-firmware-engineer)
Your own site
<a href="https://agentmods.dev/agents/andywxy1/ceo-plugin/engineering-embedded-firmware-engineer"><img src="https://agentmods.dev/badge/agents/andywxy1/ceo-plugin/engineering-embedded-firmware-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,644 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00051 $0.01644
Opus 5 $0.00026 $0.00822
Sonnet 5 $0.00010 $0.00329
Haiku 4.5 $0.00005 $0.00164

Measured 5d ago against content hash cae3e05e9e71, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Embedded 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 5d 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.

agents/engineering-embedded-firmware-engineer.md · 175 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 5d ago First seen · 175 lines · 51 tokens per session scan A cae3e05e9e71

Subscribe to this mod's changes

Embedded Firmware Engineer is an agent published in the GitHub repository andywxy1/ceo-plugin (6 stars, last pushed 5mo ago), licensed GPL-3.0. It adds 51 tokens to every session and 1,644 once invoked, about $0.0003 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.