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 killvxk/cybersecurity-skills-zh --skill analyzing-network-packets-with-scapygit clone --depth 1 https://github.com/killvxk/cybersecurity-skills-zhWrote 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/killvxk/cybersecurity-skills-zh/analyzing-network-packets-with-scapy)<a href="https://agentmods.dev/skills/killvxk/cybersecurity-skills-zh/analyzing-network-packets-with-scapy"><img src="https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-network-packets-with-scapy/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/killvxk/cybersecurity-skills-zh/analyzing-network-packets-with-scapy"><img src="https://agentmods.dev/badge/skills/killvxk/cybersecurity-skills-zh/analyzing-network-packets-with-scapy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00055 | $0.00519 |
| Opus 5 | $0.00028 | $0.00260 |
| Sonnet 5 | $0.00011 | $0.00104 |
| Haiku 4.5 | $0.00006 | $0.00052 |
Grade A, and why
analyzing-network-packets-with-scapy 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.
What it actually says
使用 Scapy 分析网络数据包
概述
Scapy 是一个 Python 数据包操作库，可在精细的协议层级构造、发送、嗅探和解析网络数据包。本技能涵盖将 Scapy 用于安全相关任务，包括 TCP/UDP/ICMP 数据包构造、pcap 文件分析、协议字段提取、SYN 扫描实现、DNS 查询分析，以及检测异常流量模式（如异常分片数据包或格式错误的头部）。
前置条件
- Python 3.8+ 并安装
scapy库（pip install scapy） - 原始套接字操作（嗅探、发送）需要 root/管理员权限
- Windows 系统需要 Npcap，Linux 系统需要 libpcap 进行数据包捕获
- 获得在目标网络上执行数据包操作的授权
步骤
- 使用
rdpcap()读取和解析 pcap/pcapng 文件进行离线分析 - 提取协议层（IP、TCP、UDP、DNS、HTTP）及字段值
- 计算流量统计：最活跃主机、协议分布、端口频率
- 通过分析 TCP 标志比例检测 SYN 洪水（SYN flood）模式
- 通过查询长度和熵分析识别 DNS 外泄指标
- 为授权网络测试构造自定义探测数据包
- 将发现导出为结构化 JSON 报告
预期输出
JSON 报告，包含数据包统计、协议分布、最活跃源/目标 IP、检测到的异常（SYN 洪水、DNS 隧道（DNS tunneling）指标、分片攻击），以及按流的摘要。
What ships with it
3 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.
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.
- 10d ago First seen · 44 lines · 55 tokens per session scan A 02d877c8a9c7
analyzing-network-packets-with-scapy is a skill published in the GitHub repository killvxk/cybersecurity-skills-zh (44 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 55 tokens to every session and 519 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 2026-08-30.
Other skills, from other repositories
analyzing-network-packets-with-scapy
Use Scapy to craft, send, sniff, and dissect TCP/UDP/ICMP/DNS packets, analyze pcap files, implement SYN scans, and detect anomalous traffic such as fragmented or malformed packets. Use when performing authorized network reconnaissance, protocol-level forensic analysis, or building traffic anomaly detection during…
analyzing-network-packets-with-scapy
Craft, send, sniff, and dissect network packets using Scapy for protocol analysis, network reconnaissance, and traffic anomaly detection in authorized security testing.
analyzing-network-packets-with-scapy
Craft, send, sniff, and dissect network packets using Scapy for protocol analysis, network reconnaissance, and traffic anomaly detection in authorized security testing.
analyzing-network-packets-with-scapy
Craft, send, sniff, and dissect network packets using Scapy for protocol analysis, network reconnaissance, and traffic anomaly detection in authorized security testing.
analyzing-network-packets-with-scapy
Craft, send, sniff, and dissect network packets using Scapy for protocol analysis, network reconnaissance, and traffic anomaly detection in authorized security testing.
analyzing-network-packets-with-scapy
Craft, send, sniff, and dissect network packets using Scapy for protocol analysis, network reconnaissance, and traffic anomaly detection in authorized security testing.