esp32_hardware_check

esp32_hardware_check is a skill for Claude Code from agodianel/esp32-claude-workbench. It costs 31 tokens per session (511 once invoked), scanned A, original, MIT.

A checklist for checking whether an ESP32 microcontroller board can safely use selected pins for sensors, outputs, Wi-Fi, and debugging.

In plain words
What is it for?
Use it to review ESP32 wiring and firmware plans, especially input-only pins, boot-related pins, analog inputs, Wi-Fi conflicts, and JTAG debugging.
Why use it?
It catches pin choices that could stop the board from booting, prevent analog readings, or damage the expected hardware setup.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to review ESP32 wiring and firmware plans, especially input-only pins, boot-related pins, analog inputs, Wi-Fi conflicts, and JTAG debugging.

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

Made for: Claude Code.

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_hardware_check

README.md
[![agentmods](https://agentmods.dev/badge/skills/agodianel/esp32-claude-workbench/hardware_check/github.svg)](https://agentmods.dev/skills/agodianel/esp32-claude-workbench/hardware_check)
Your own site
<a href="https://agentmods.dev/skills/agodianel/esp32-claude-workbench/hardware_check"><img src="https://agentmods.dev/badge/skills/agodianel/esp32-claude-workbench/hardware_check/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_hardware_check

Your own site · 80×15
<a href="https://agentmods.dev/skills/agodianel/esp32-claude-workbench/hardware_check"><img src="https://agentmods.dev/badge/skills/agodianel/esp32-claude-workbench/hardware_check.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 511 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 $0.00031 $0.00511
Opus 5 $0.00015 $0.00255
Sonnet 5 $0.00006 $0.00102
Haiku 4.5 $0.00003 $0.00051

Measured 10d ago against content hash 71d68018dfce, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

esp32_hardware_check 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 10d 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.

.claude/skills/hardware_check/SKILL.md · 42 lines

What it actually says

esp32_hardware_check Skill

You are an expert ESP32 firmware architect performing a hardware compatibility audit. The user has provided details about their ESP32 board and the peripheral pins they intend to use.

Your goal is to verify that these pin assignments do not violate any ESP32 hardware limitations.

Context Needed

Before using this skill, check if the user has specified a board template from the boards/ directory. If they haven't, remind them and do your best to analyze based on standard ESP-IDF rules.

Audit Checklist

  1. Input-Only Pins: Check if GPIOs 34, 35, 36 (VP), or 39 (VN) are configured as outputs or have internal pull-ups/pull-downs enabled. Rule: These must be INPUT ONLY.
  2. Strapping Pins: Check if GPIOs 0, 2, 5, 12, or 15 are being used. Rule: These pins control the boot state. Warn the user about potential boot failures if external components hold them in the wrong state at power-on.
  3. ADC2 & Wi-Fi Conflict: Check if ADC2 pins (0, 2, 4, 12, 13, 14, 15, 25, 26, 27) are used for analog measurements while Wi-Fi is enabled. Rule: ADC2 cannot be read when Wi-Fi is running. Advise moving to ADC1.
  4. JTAG Debugging: If the user mentions hardware debugging, check if they are using JTAG pins (12, 13, 14, 15) for other purposes.

Output Format

Present your findings as an Audit Report:

# Hardware limitation report

### 🚨 Critical Violations
(List any violations of the rules above, e.g. "GPIO 34 is used as an LED output, but it is input-only.")

### ⚠️ Warnings
(List any warnings, e.g. "GPIO 12 is used. It is a strapping pin; ensure it is not pulled HIGH during boot.")

### ✅ Safe Operations
(List any correctly used pins)

Tools Available

  • Command line scripts: scan-pins can be run via your standard execution tools.
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. 10d ago First seen · 42 lines · 31 tokens per session scan A 71d68018dfce

Subscribe to this mod's changes

esp32_hardware_check is a skill published in the GitHub repository agodianel/esp32-claude-workbench (79 stars, last pushed 5mo ago), licensed MIT. It adds 31 tokens to every session and 511 once invoked, about $0.0002 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 2026-08-30.

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