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-icsgit 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-ics)<a href="https://agentmods.dev/skills/dslsdzc/rev-skills/re-ics"><img src="https://agentmods.dev/badge/skills/dslsdzc/rev-skills/re-ics/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-ics"><img src="https://agentmods.dev/badge/skills/dslsdzc/rev-skills/re-ics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
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 Privilege Escalation · line 26 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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 | $0.00046 | $0.03430 |
| Opus 5 | $0.00023 | $0.01715 |
| Sonnet 5 | $0.00009 | $0.00686 |
| Haiku 4.5 | $0.00005 | $0.00343 |
Grade B, and why
re-ics scanned grade B with 1 finding 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 9d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- Linux: `apt install wireshark tshark` / `dnf install wireshark-cli wireshark` / `pacman -S wireshark-cli wireshark-qt`（Arch 已拆分为 wireshark-cli + wireshark-qt；Debian 安装时选"允许非 root 抓包"，或 `sudo dpkg-reconfigure wireshark- How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
工控协议逆向（ICS/SCADA）
何时使用 / 何时不用
- 用：拿到工控（ICS/SCADA）流量（pcap / 实时抓包）需要解析 Modbus / DNP3 / OPC UA 语义
- 用：从流量重建 PLC/RTU 的点表（线圈/寄存器/对象映射）
- 用：工控设备（PLC/HMI/RTU）固件与通信分析（配合 [[re-firmware]]）
- 用：授权范围内的 ICS 安全测试（见步骤 5 边界）
- 不用：流量是密文/带加密层（先 [[re-crypto-id]] → [[re-crypto-keys]] → [[re-crypto-decrypt]]）
- 不用：非工控自定义协议（那是 [[re-proto-rev]]）
- 不用：只需要抓包（那是 [[re-netcap]]）
工具准备
所有工具先验证再使用。ICS 分析红线：只测授权系统、默认隔离网络（[[platform-tips]] 最高原则）——测试环境严禁接生产 OT 网络（见步骤 5）。
wireshark / tshark —— ICS 解析器主力（modbus/dnp3/opcua dissector 内置）
- Linux:
apt install wireshark tshark/dnf install wireshark-cli wireshark/pacman -S wireshark-cli wireshark-qt（Arch 已拆分为 wireshark-cli + wireshark-qt；Debian 安装时选"允许非 root 抓包"，或sudo dpkg-reconfigure wireshark-common后把用户加入 wireshark 组） - macOS:
brew install --cask wireshark（含 tshark CLI；或brew install wireshark仅 CLI） - Windows:
choco install wireshark（或官方安装包）；WSL 内用 Linux 版 - 验证:
tshark --version；tshark -G fields | grep -iE 'modbus|dnp3|opcua'列出 ICS 字段名（各版本字段名可能有微调，以该输出为准）
scapy —— modbus 层解析与构造（contrib 层）
- 全平台:
pip install scapy（Python 3，推荐） - Linux:
apt install python3-scapy（Debian 系；含 contrib 层） - 验证:
python3 -c "from scapy.contrib.modbus import ModbusADURequest, ModbusADUResponse; print('ok')" - 注意：modbus 层在
scapy.contrib.modbus（非默认层，需显式 import，ModbusADURequest/ModbusADUResponse+ModbusPDU0X*Request/Response各功能码类）；scapy 各版本均无 DNP3 / OPC UA 层 → DNP3/OPC UA 用 Wireshark 解析或写自定义解析器（见步骤 4） - 读 pcap 用
rdpcap（纯 Python 解析，无需 libpcap）
python3 —— 解析脚本运行环境
- 安装与验证见 [[re-proto-rev]] 工具准备
操作步骤
按顺序执行，每步记下结果。前提：流量已捕获（[[re-netcap]]）且为明文（密文先走 [[re-crypto-decrypt]]）。
- 协议识别（端口 + 特征）：
tshark -r cap.pcap -T fields -e tcp.dstport | sort | uniq -c | sort -rn # 端口统计 tshark -r cap.pcap -q -z io,phs # 协议分层统计（dissector 命中情况）- 端口速查：Modbus/TCP 502（Modbus over TLS 802）、DNP3 20000/TCP,UDP,SCTP（安全 DNP3 dnp-sec 19999/TCP,UDP,SCTP）、OPC UA 二进制 4840/TCP、S7comm 102、EtherNet/IP 44818、BACnet/IP 47808/UDP
- 端口仅作初判（工控常走非标端口），用特征确认：Modbus/TCP 事务 = transId(2) + protoId 0x0000(2) + len(2) + unitId(1) + 功能码(1)；DNP3 链路帧首 2 字节固定
05 64；OPC UA 二进制头 3 字节消息类型（HEL/ACK/OPN/CLO/MSG）
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.
- 9d ago First seen · 114 lines · 46 tokens per session scan B 709a462a1b2e
re-ics is a skill published in the GitHub repository dslsdzc/rev-skills (54 stars, last pushed 14d ago), licensed Apache-2.0. It adds 46 tokens to every session and 3,430 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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