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 skills add dslsdzc/rev-skills --skill re-uefigit clone --depth 1 https://github.com/dslsdzc/rev-skillsWrote 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.
[](https://agentmods.dev/skills/dslsdzc/rev-skills/re-uefi)<a href="https://agentmods.dev/skills/dslsdzc/rev-skills/re-uefi"><img src="https://agentmods.dev/badge/skills/dslsdzc/rev-skills/re-uefi/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.
<a href="https://agentmods.dev/skills/dslsdzc/rev-skills/re-uefi"><img src="https://agentmods.dev/badge/skills/dslsdzc/rev-skills/re-uefi.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00051 | $0.03470 |
| Opus 5 | $0.00026 | $0.01735 |
| Sonnet 5 | $0.00010 | $0.00694 |
| Haiku 4.5 | $0.00005 | $0.00347 |
Grade A, and why
re-uefi 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UEFI 固件逆向（DXE 驱动 / UEFI 模块 / bootkit）
何时使用 / 何时不用
- 用：固件镜像内含 EFI 结构（Firmware Volume / FFS 文件 / DXE 驱动）——BIOS 更新包（.fd/.rom/.bin）、UEFI 驱动、EFI 应用
- 用：bootkit 定位（SMM handler、定时器回调、启动路径挂钩）与验证
- 用：Secure Boot / 启动链相关分析（签名、证书、NVRAM 变量）——需合法授权，见坑 4
- 不用：固件是传统 Linux 嵌入式 rootfs（走 [[re-fw-extract]] / [[re-fw-rootfs]]；[[re-firmware]] 网关先判定）
- 不用：Legacy BIOS Option ROM / 非 EFI 传统固件（binwalk 走 [[re-fw-extract]]）
- 不用：只需整体解包看内容（先 [[re-fw-extract]] 初判，确认是 UEFI 结构再进本技能）
- 注意：静态分析先行（大型固件原则）；仿真 bootkit = 运行恶意代码，默认沙箱（[[platform-tips]] 最高原则）
工具准备
所有工具先验证再使用。固件镜像解析/模块静态分析可免沙箱；OVMF 仿真（步骤 5）是动态执行，默认沙箱 + 网络隔离（[[platform-tips]] 最高原则）。
UEFITool / UEFIExtract（固件解析主力）
- Debian/Ubuntu:
apt install uefitool uefitool-cli（官方包：GUI + CLI；CLI 含 UEFIExtract/UEFIFind） - Arch: AUR
yay -S uefitool（或uefitool-git；非官方仓库） - Fedora: 无官方包 → GitHub releases 的 Linux x64 二进制（https://github.com/LongSoft/UEFITool/releases）或源码构建（qmake + Qt6）
- macOS: GitHub releases 的 universal macOS 二进制（同上页面）
- Windows: GitHub releases 的 win64 二进制（或
choco install uefitool如镜像可用） - 验证:
uefiextract --help输出用法；GUIuefitool能打开固件镜像
UEFIFind（按模式串定位文件，随 uefitool-cli）
- NE 版只有位置参数语法：
uefifind imagefile {header|body|all} {list|count} pattern，无 -g/-t 选项 - 按 GUID 定位改用 UEFIExtract 的 GUID 参数模式：
uefiextract fw.bin <GUID>（见下） - 装法同上（Debian/Ubuntu 的 uefitool-cli 内含）
- 验证:
uefifind --help
ghidra / ida（模块反编译；装法见 [[re-ghidra]] / [[re-ida]]）
- .efi 模块是 PE/COFF（subsystem EFI_BOOT_SERVICE_DRIVER / EFI_APPLICATION），两家都能直接导入
- EfiRom 插件（可选）：EDK2 工具，用于 ROM 文件与 .efi 互转/体积查询
- 验证: 导入提取出的 .efi 能自动识别 subsystem 为 EFI boot service driver
ovmf —— OVMF（Open Virtual Machine Firmware，UEFI 仿真固件）
- Debian/Ubuntu:
apt install ovmf（/usr/share/OVMF/OVMF_CODE.fd、OVMF_VARS.fd） - Fedora/RHEL:
dnf install edk2-ovmf（路径 /usr/share/edk2/ovmf/OVMF_CODE.fd——旧 /usr/share/OVMF 布局已废弃） - Arch:
pacman -S edk2-ovmf（仅装 /usr/share/edk2/x64/OVMF_CODE.4m.fd，4m 格式） - macOS:
brew install qemu自带固件（$(brew --prefix)/share/qemu/edk2-x86_64-code.fd，随 qemu 包） - Windows: QEMU 安装包自带（share/qemu/ 下 edk2-x86_64-code.fd）
- 验证: 按发行版查对应路径——Debian/Ubuntu
ls /usr/share/OVMF/OVMF_CODE.fd；Fedora/RHELls /usr/share/edk2/ovmf/OVMF_CODE.fd；Archls /usr/share/edk2/x64/OVMF_CODE.4m.fd；macOS 用 brew 前缀路径
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.
- 7d ago First seen · 134 lines · 51 tokens per session scan A c4f529ec37c0
re-uefi is a skill published in the GitHub repository dslsdzc/rev-skills (52 stars, last pushed 12d ago), licensed Apache-2.0. It adds 51 tokens to every session and 3,470 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 2026-09-03.
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