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.
npx agentmods add skills/wangjianjq/skill/serial-debugnpx skills add wangjianjq/Skill --skill serial-debuggit clone --depth 1 https://github.com/wangjianjq/SkillWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00407 |
| Opus 5 | $0.00000 | $0.00204 |
| Sonnet 5 | $0.00000 | $0.00081 |
| Haiku 4.5 | $0.00000 | $0.00041 |
Grade A, and why
serial-debug 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 2d 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.
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.
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.
- 2d ago First seen · 32 lines · 0 tokens per session scan A 8c1ee181186e
serial-debug is a skill published in the GitHub repository wangjianjq/Skill (23 stars, last pushed 6mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 407 tokens. 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.
Other skills, from other repositories
hardware-iot-bus
Low-level I2C and SPI bus peripheral control for embedded Linux boards (Orange Pi, Raspberry Pi, RISC-V).
tuyaos-hardware-vibe-coding
Hardware-aware code generation for TuyaOS (tuyaos-legacy) apps. Confirms pins/instance with the user, writes tkl/tal driver code under apps/ /src, and registers sources/headers in local.mk when needed. Canonical demos: software/TuyaOS/apps/tuyaosdemoexamples/src/examples/. GPIO、PWM、I2C、SPI、ADC、定时器、看门狗、麦克风、喇叭、DVP…
tuyaopen/onchip-uart
On-chip UART (serial port) for TuyaOpen using the taluart API: init a user UART, send/receive bytes, RX interrupt callback. 串口、UART、串口收发、串口通信、taluart、用户串口。.
agentdeck-deploy
Build, install, launch, and configure AgentDeck on connected Android, Apple, ESP32, Stream Deck, or daemon targets. Use when the user asks to deploy AgentDeck or names target devices such as pantone, crema, lenovo, iphone, ipad, macos, esp32, tc001, bridge, daemon, or plugin.
esp32-heap-discipline
Memory-allocation discipline for AgentDeck ESP32 firmware (esp32/). Use whenever writing or reviewing firmware code that allocates — new / malloc / psmalloc / heapcapsalloc / std::vector / std::string / String / a buffer / a cache / anything held across a render loop. Covers the PSRAM-vs-no-PSRAM board split, the…
hardware-saas-gtm
🇺🇸 Hardware + SaaS GTM Playbook — End-to-end go-to-market for consumer hardware products with software subscription models. Covers crowdfunding engineering (Kickstarter/Indiegogo/Makuake), KOL matrix for physical products, hardware PMF validation metrics, device-as-funnel subscription design, localization entry…