embedded-verification

embedded-verification is a skill for Claude Code, Codex from lhbsaa/embedded-dev-skill. It costs 26 tokens per session (1,085 once invoked), scanned A, original, MIT.

A verification workflow for embedded software, which is code that runs on physical devices such as microcontrollers. It requires a fresh build, device upload, and runtime monitor check before declaring the work complete.

In plain words
What is it for?
Use it to build firmware, flash it onto an ESP32 or similar board, monitor its output, and verify that it runs without crashes or incorrect behavior.
Why use it?
It prevents completion claims based only on code inspection or an old test result. Problems that appear only after the program runs on the device can be caught.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to build firmware, flash it onto an ESP32 or similar board, monitor its output, and verify that it runs without crashes or incorrect behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lhbsaa/embedded-dev-skill/embedded-verification
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 lhbsaa/embedded-dev-skill --skill embedded-verification
Clone the repo
git clone --depth 1 https://github.com/lhbsaa/embedded-dev-skill

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-verification

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/lhbsaa/embedded-dev-skill/embedded-verification"><img src="https://agentmods.dev/badge/skills/lhbsaa/embedded-dev-skill/embedded-verification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,085 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 original 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 $0.00026 $0.01085
Opus 5.5 $0.00010 $0.00434
Sonnet 5.5 $0.00005 $0.00217
Haiku 4.5 $0.00003 $0.00109

Measured 1mo ago against content hash 31b355d5de96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

embedded-verification 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 1mo 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.

skills/embedded-verification/SKILL.md · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Embedded Verification

Overview

The Iron Law enforcement phase. No completion claims without fresh verification evidence.

Core principle: Evidence before claims, always.

Context: Run after embedded-implementation completes all tasks.

The Iron Law

NO COMPLETION CLAIMS WITHOUT BUILD-FLASH-MONITOR VERIFICATION

Verification Gate

BEFORE claiming ANY status:

1. IDENTIFY: What command proves this claim?
2. RUN: Execute FULL command (fresh, complete)
3. READ: Full output, check exit code, errors
4. VERIFY: Does output confirm?
5. ONLY THEN: Make the claim

Verification Types

Type Command Expected
Build idf.py build Exit 0, no errors
Flash idf.py -p COM3 flash Exit 0, flash success
Monitor idf.py monitor No crash, correct output
Full Loop idf.py build flash monitor All pass

Platform Commands

Windows PowerShell

# Build
idf.py build
if($LASTEXITCODE -eq 0) { echo "Build PASS" } else { echo "Build FAIL" }

# Flash + Monitor
idf.py -p COM3 flash; if($?) { idf.py monitor }

Linux/macOS Bash

# Build
idf.py build && echo "Build PASS"

# Flash + Monitor
idf.py -p /dev/ttyUSB0 flash monitor

Process

1. Build Verification

Run: idf.py build

Check:
- Exit code = 0
- No errors in output
- No unexpected warnings

If FAIL:
- Analyze error
- Fix
- Re-build

2. Flash Verification

Run: idf.py -p [PORT] flash

Check:
- Flash successful message
- No timeout errors

If FAIL:
- Check port (COMx / /dev/ttyUSBx)
- Check connection
- Re-flash

3. Monitor Verification

Run: idf.py monitor

Duration: 30-60 seconds minimum

Check:
- No Guru Meditation Error
- No assertion failures
- Expected log output present
- Initialization sequence logged

Use: scripts/serial_monitor.py for structured output

4. Runtime Behavior Check

Based on design spec:

Feature Verification
Display driver Monitor shows init success
Sensor Correct readings in log
Wi-Fi Connected to AP
Protocol Data transmission logged

Read the full file on GitHub · 211 lines

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. 1mo ago First seen · 211 lines · 26 tokens per session scan A 31b355d5de96

Subscribe to this mod's changes

embedded-verification is a skill published in the GitHub repository lhbsaa/embedded-dev-skill (10 stars, last pushed 2mo ago), licensed MIT. It adds 26 tokens to every session and 1,085 once invoked, about $0.0001 per session on Opus 5.5. 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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