Wireshark Analysis
zebbern/claude-code-guide
This skill should be used when the user asks to "analyze network traffic with Wireshark", "capture packets for troubleshooting", "filter PCAP files", "follow TCP/UDP streams", "detect network…
CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis.
Install Cml Packet Capture
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install automateyournetwork/netclaw cml-packet-capture --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/workspace/skills/cml-packet-capture .claude/skills/cml-packet-capture && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .claude/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-captureType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install automateyournetwork/netclaw cml-packet-capture --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .agents/skills && cp -r skills-src/workspace/skills/cml-packet-capture .agents/skills/cml-packet-capture && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .agents/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install automateyournetwork/netclaw cml-packet-capture --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/workspace/skills/cml-packet-capture .cursor/skills/cml-packet-capture && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .cursor/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/automateyournetwork/netclaw.git --path workspace/skills/cml-packet-capture--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install automateyournetwork/netclaw cml-packet-capture --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/workspace/skills/cml-packet-capture .gemini/skills/cml-packet-capture && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .gemini/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install automateyournetwork/netclaw cml-packet-captureInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .github/skills && cp -r skills-src/workspace/skills/cml-packet-capture .github/skills/cml-packet-capture && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .github/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install automateyournetwork/netclaw cml-packet-capture --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/workspace/skills/cml-packet-capture .opencode/skills/cml-packet-capture && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cml-packet-capture" agent skill from https://github.com/automateyournetwork/netclaw/tree/main/workspace/skills/cml-packet-capture into .opencode/skills/cml-packet-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cml-packet-capture", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
cml-packet-capture- GitHub stars
- 676
- Token cost
- ~1.6k tokens
- SKILL.md length
- 585 words
- Files
- 1
- Skills in repo
- 120
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis.
- Works in 7 steps: Find the link: Use get_links (from… → Start capture: start_capture with… → Generate traffic: Tell the user to… → …
- Capturing packets in a CML lab
- SKILL.md covers MCP Server, Available Tools, Workflow: Capture and Analyze… and Workflow: Targeted Protocol…, plus 5 more sections
- Needs CML_PASSWORD
What it does
Cml Packet Capture is an agent skill from automateyournetwork/netclaw. CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis. Use when capturing packets in a CML lab, troubleshooting BGP or OSPF with packet analysis, or downloading pcap files for Wireshark review.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Security, covering Network security. It works with Wireshark. The repository describes itself as: An AI agent that claws through your network. The licence is Apache-2.0.
When your agent uses it
- Capturing packets in a CML lab
- Troubleshooting BGP
- OSPF with packet analysis
- Downloading pcap files for Wireshark review
Example prompts
- “/cml-packet-capture”
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Find the link: Use get_links (from cml-topology-builder) to find the link ID between R1 and R2
- Start capture: start_capture with optional filter (e.g., "icmp", "tcp port 179")
- Generate traffic: Tell the user to generate traffic (or use execute_command to ping)
- Stop capture: stop_capture after sufficient traffic is collected
- Download pcap: download_capture to save the pcap file locally
- Analyze with Packet Buddy: Hand off to the packet-analysis skill
- Report findings: Summarize the analysis in plain English
What it can do on your machine
Read from SKILL.md and the folder at commit aa90e7d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
CML_PASSWORD
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Cml Packet Capture loads about 1.6k tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 585 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from automateyournetwork/netclaw at commit aa90e7d, republished under its Apache-2.0 licence (© automateyournetwork). 585 words, ~1,551 tokens.
Download SKILL.mdSave it as
.claude/skills/cml-packet-capture/SKILL.md (or your agent's skills folder).- name
- cml-packet-capture
- description
- CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis. Use when capturing packets in a CML lab, troubleshooting BGP or OSPF with packet analysis, or downloading pcap files for Wireshark review.
- version
- 1.0.0
- license
- Apache-2.0
- tags
- cml, pcap, capture, troubleshooting, wireshark
CML Packet Capture
MCP Server
- Command:
cml-mcp(pip-installed, stdio transport) - Requires:
CML_URL,CML_USERNAME,CML_PASSWORDenvironment variables
Available Tools
Packet Capture Operations
| Tool | Parameters | What It Does |
|---|---|---|
start_capture | lab_id/lab_title, link_id, max_packets?, pcap_filter? | Start capturing packets on a link |
stop_capture | lab_id/lab_title, link_id | Stop an active capture |
get_capture_status | lab_id/lab_title, link_id | Check capture status (running, packet count) |
download_capture | lab_id/lab_title, link_id, file_path? | Download the captured pcap file |
list_captures | lab_id/lab_title | List all active and completed captures in a lab |
Workflow: Capture and Analyze (Full Pipeline)
When a user says "capture traffic between R1 and R2 and analyze it":
- Find the link: Use
get_links(from cml-topology-builder) to find the link ID between R1 and R2 - Start capture:
start_capturewith optional filter (e.g., "icmp", "tcp port 179") - Generate traffic: Tell the user to generate traffic (or use
execute_commandto ping) - Stop capture:
stop_captureafter sufficient traffic is collected - Download pcap:
download_captureto save the pcap file locally - Analyze with Packet Buddy: Hand off to the packet-analysis skill:
pcap_summary— overviewpcap_protocol_hierarchy— protocol breakdownpcap_conversations— who talked to whompcap_expert_info— errors, retransmissionspcap_filter— drill into specific traffic
- Report findings: Summarize the analysis in plain English
Workflow: Targeted Protocol Capture
When troubleshooting a specific protocol:
BGP Troubleshooting
1. start_capture with pcap_filter="tcp port 179"
2. Wait for BGP events (or trigger with clear ip bgp)
3. stop_capture
4. download_capture
5. Analyze: Look for OPEN, KEEPALIVE, UPDATE, NOTIFICATION messages
6. Check for: hold timer expiry, capability mismatch, prefix limit exceededOSPF Troubleshooting
1. start_capture with pcap_filter="ospf"
2. Wait for OSPF events (or trigger with clear ip ospf process)
3. stop_capture
4. download_capture
5. Analyze: Look for Hello, DBD, LSR, LSU, LSAck packets
6. Check for: area mismatch, auth failure, MTU mismatch, dead timer expiryICMP / Connectivity
1. start_capture (no filter, or pcap_filter="icmp")
2. execute_command on source node: "ping {destination}"
3. stop_capture
4. download_capture
5. Analyze: Look for echo request/reply, unreachable, TTL exceeded
6. Check for: asymmetric routing, ACL drops, MTU issuesSpanning Tree
1. start_capture with pcap_filter="stp"
2. Wait for STP convergence or trigger topology change
3. stop_capture
4. download_capture
5. Analyze: BPDUs, topology change notifications, root bridge electionsCapture Filters
CML uses BPF (Berkeley Packet Filter) syntax for capture filters:
| Filter | Captures |
|---|---|
icmp | ICMP (ping) traffic |
tcp port 179 | BGP traffic |
ospf | OSPF traffic |
tcp port 22 | SSH traffic |
udp port 53 | DNS traffic |
arp | ARP requests/replies |
stp | Spanning Tree BPDUs |
tcp port 80 or tcp port 443 | HTTP/HTTPS traffic |
host 10.0.0.1 | Traffic to/from specific host |
net 10.0.0.0/24 | Traffic to/from specific subnet |
vlan 100 | Traffic on VLAN 100 |
Workflow: Compare Before/After
When verifying a configuration change:
- Capture before: Start capture, collect baseline traffic
- Stop and download: Save as
before.pcap - Make the change: Apply configuration via cml-node-operations
- Capture after: Start new capture, collect post-change traffic
- Stop and download: Save as
after.pcap - Compare: Analyze both pcaps with Packet Buddy
- Report: Document the differences (e.g., "BGP converged in 3s after route-map change")
Show full SKILL.md (238 more words)Show less
Integration with Packet Buddy
After downloading a pcap from CML, use these Packet Buddy tools for analysis:
| Step | Packet Buddy Tool | Purpose |
|---|---|---|
| 1 | pcap_summary | Big picture: packet count, duration, size |
| 2 | pcap_protocol_hierarchy | What protocols are present |
| 3 | pcap_conversations | Who is talking to whom |
| 4 | pcap_expert_info | Errors, warnings, retransmissions |
| 5 | pcap_filter | Focus on specific traffic |
| 6 | pcap_packet_detail | Deep dive into a single packet |
| 7 | pcap_dns_queries | DNS resolution analysis |
| 8 | pcap_http_requests | HTTP traffic analysis |
Important Rules
- Lab must be running — captures only work on links in a started lab
- One capture per link — stop an existing capture before starting a new one
- Use filters for busy links — unfiltered captures on high-traffic links can be large
- Set max_packets — prevent runaway captures; 10000 packets is usually enough
- Download before stopping — some CML versions clear the capture buffer on link state change
- File naming: Save pcaps with descriptive names like
r1-r2-bgp-capture.pcap - Record in GAIT — log captures and findings for audit trail
Failure Behavior
- On a tool error (timeout, unreachable host, malformed response), report the failure and its error message directly to the user rather than fabricating or guessing at results.
- For a confirmed read-only call, check connectivity and retry once if appropriate. For any call that changes state or sends a message, a timeout does not prove the action failed: inspect current state or delivery status before retrying, preserve the required approval/change gates, and do not repeat an action whose outcome is unknown.
© automateyournetwork, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in workspace/skills/cml-packet-capture of automateyournetwork/netclaw.
Open the folder on GitHubat commit aa90e7d
Compare with similar skills
Cml Packet Capture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cml Packet Capture this skillautomateyournetwork/netclaw | 676 | — | ~1.6k | Automated safety check: Pass | Apache-2.0 | |
| Wireshark Analysiszebbern/claude-code-guide | 4.7k | 8 repos | ~3k | Automated safety check: Pass | MIT | |
| IotnetBrownFineSecurity/iothackbot | 859 | 1 repos | ~1k | Automated safety check: Notes | MIT | |
| Netzhinkgit/embeddedskills | 734 | — | ~1.1k | Automated safety check: Pass | MIT | |
| Performing Network Forensics With Wiresharkmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3k | Automated safety check: Notes | Apache-2.0 | |
| Performing Network Traffic Analysis With Zeekmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~3.2k | Automated safety check: Notes | Apache-2.0 |
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Iotnet
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Net
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嵌入式网络调试工具，用于发现接口、抓包、分析 pcap/pcapng、做连通性测试、端口扫描和流量统计. An agent skill from zhinkgit/embeddedskills.
Performing Network Forensics With Wireshark
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Questions about Cml Packet Capture
What does Cml Packet Capture do?
CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis. Cml Packet Capture is an agent skill from automateyournetwork/netclaw. CML packet capture — start, stop, download pcaps from CML lab links, integrate with Packet Buddy for analysis.
When should I use Cml Packet Capture?
Cml Packet Capture fits situations like: capturing packets in a CML lab; troubleshooting BGP; OSPF with packet analysis; downloading pcap files for Wireshark review.
How do I install Cml Packet Capture in Claude Code?
Run `npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a claude-code`. Or copy the skill folder (workspace/skills/cml-packet-capture in automateyournetwork/netclaw) into .claude/skills/cml-packet-capture in your project. Claude Code loads it when a task matches its description.
How do I install Cml Packet Capture in Codex?
Run `npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a codex`. Or copy the skill folder (workspace/skills/cml-packet-capture in automateyournetwork/netclaw) into .agents/skills/cml-packet-capture in your project. Codex loads it when a task matches its description.
Can I use Cml Packet Capture in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add automateyournetwork/netclaw --skill cml-packet-capture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cml-packet-capture, .gemini/skills/cml-packet-capture, .github/skills/cml-packet-capture and .opencode/skills/cml-packet-capture in your project.
What does Cml Packet Capture need to run?
Going by SKILL.md and its folder, Cml Packet Capture needs credentials named CML_PASSWORD.
Does Cml Packet Capture access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Cml Packet Capture safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Cml Packet Capture use?
Cml Packet Capture is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Cml Packet Capture use?
About 1.6k tokens (SKILL.md is roughly 6.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Cml Packet Capture?
Skills that share tags, products or a category with Cml Packet Capture: Wireshark Analysis (zebbern/claude-code-guide, 4.7k stars), Iotnet (BrownFineSecurity/iothackbot, 859 stars), Net (zhinkgit/embeddedskills, 734 stars) and Performing Network Forensics With Wireshark (mukul975/Anthropic-Cybersecurity-Skills, 34k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cml Packet Capture?
automateyournetwork (a GitHub user) maintains it in automateyournetwork/netclaw, which has 676 GitHub stars. The repository holds 120 skills in this directory. The repository was last updated on October 9, 2026.
Source: automateyournetwork/netclaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.