designing-hardware-products

designing-hardware-products is a skill for Claude Code from telagod/code-abyss. It costs 58 tokens per session (879 once invoked), scanned A, original, MIT.

A workflow for designing complete connected or embedded hardware products, from system requirements through circuit-board files, device firmware, a mobile app, testing, and release packaging. It covers ESP-IDF, KiCad, and UniApp as parts of that workflow.

In plain words
What is it for?
Use it to start an IoT product, add a Bluetooth app to existing hardware, redesign a circuit board while keeping existing firmware, or produce manufacturing files, compiled firmware, an app build, and a release package.
Why use it?
It brings the major parts of a hardware product into one repeatable process and allows already completed phases to be skipped or rerun. This helps keep the device, firmware, board, app, and release files aligned.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the code-abyss plugin — 39 skills shipped together

Good fit Use it to start an IoT product, add a Bluetooth app to existing hardware, redesign a circuit board while keeping existing firmware, or produce manufacturing files, compiled firmware, an app build, and a release package.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/telagod/code-abyss/designing-hardware-products
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 telagod/code-abyss --skill designing-hardware-products
Clone the repo
git clone --depth 1 https://github.com/telagod/code-abyss

Made for: Claude Code.

Or install code-abyss, the plugin that ships this one along with the rest of its 39 skills.

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 designing-hardware-products

README.md
[![agentmods](https://agentmods.dev/badge/skills/telagod/code-abyss/designing-hardware-products/github.svg)](https://agentmods.dev/skills/telagod/code-abyss/designing-hardware-products)
Your own site
<a href="https://agentmods.dev/skills/telagod/code-abyss/designing-hardware-products"><img src="https://agentmods.dev/badge/skills/telagod/code-abyss/designing-hardware-products/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 designing-hardware-products

Your own site · 80×15
<a href="https://agentmods.dev/skills/telagod/code-abyss/designing-hardware-products"><img src="https://agentmods.dev/badge/skills/telagod/code-abyss/designing-hardware-products.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 879 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
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 73
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00058 $0.00879
Opus 5.5 $0.00023 $0.00352
Sonnet 5.5 $0.00012 $0.00176
Haiku 4.5 $0.00006 $0.00088

Measured 1mo ago against content hash ce9eaf89546e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

designing-hardware-products 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/designing-hardware-products/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Designing Hardware Products

判断先于执行:决定「是否做 / 选什么 / 如何取舍」(栈、方案、架构、权衡)前,先读领域判断内核 skills/_kernel/hardware/SKILL.md——它管 judgment,本秘典管 execution;冲突时以内核判断为准。

From empty directory to shippable product. Requirements in, Gerber + .bin + .apk out.

When to use

Scenario Use Why
New IoT / embedded product from scratch Yes Full pipeline
Adding BLE app to existing hardware Partial Phase 4 only
PCB redesign with existing firmware Partial Phase 3 only
One-off breadboard prototype No Overkill, just wire it

Pipeline phases

Phase 1: System Design    → DESIGN.md (architecture, topology, protocol)
Phase 2: Firmware          → ESP-IDF components, FreeRTOS tasks, BLE GATT
Phase 3: Hardware          → KiCad schematic → PCB → route → DRC → Gerber
Phase 4: Mobile App        → UniApp (BLE, i18n, dev mode, SVG icons)
Phase 5: Verify + Package  → build all → zip release

Each phase is independently re-runnable. Skip phases that already exist.

Key decision points

  1. MCU selection — ESP32-C3 (BLE+WiFi, RISC-V, cheap) vs ESP32-S3 (AI, USB) vs STM32 (low power) vs nRF (BLE-only)
  2. HV topology — if product needs high voltage (mosquito swatter, taser), see references/hv-design.md
  3. PCB form factor — match physical product shape, not default rectangle
  4. App framework — UniApp (WeChat+Android+iOS) vs React Native vs Flutter

Companion skills

  • operating-kicad-eda — Phase 3 detail, KiCad MCP tool routing
  • developing-software — firmware language patterns (C for ESP-IDF)
  • developing-mobile-apps — app framework patterns

Usage

/designing-hardware-products "BLE mosquito swatter with kill counting, ESP32-C3, 30x100mm PCB strip"

References

Topic File
Phase execution details pipeline-phases.md
KiCad 9 gotchas kicad9-quirks.md
ESP-IDF patterns esp-idf-patterns.md
HV circuit design hv-design.md
UniApp patterns uniapp-patterns.md

Read the full file on GitHub · 75 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. 1mo ago First seen · 75 lines · 58 tokens per session scan A ce9eaf89546e

Subscribe to this mod's changes

designing-hardware-products is a skill published in the GitHub repository telagod/code-abyss (242 stars, last pushed 3mo ago), licensed MIT. It adds 58 tokens to every session and 879 once invoked, about $0.0002 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 2026-08-30.

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