a5c-ai/network-simulation
library/specializations/network-programming/skills/network-simulation/SKILL.md
Skill for network condition simulation, emulation, and chaos engineering
$ install --global
skillsauthnpx skillsauth add a5c-ai/babysitter network-simulationInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
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mcp-scan (Snyk)Model Context Protocol security validation
95%
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Snyk (dep)Open source security scanning
50%
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Socket.devSupply chain security analysis
50%
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VirusTotalMulti-engine malware detection
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CrowdStrikeAdvanced threat intelligence
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OSV-ScannerOpen Source Vulnerability database check
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OWASP Dep-Check
50%
Last scanned: Apr 2, 2026, 12:50 PM60.9s2 files scanned
SKILL.md
- name:
- network-simulation
- description:
- Skill for network condition simulation, emulation, and chaos engineering
Network Simulation Skill
Expert skill for network condition simulation, emulation, and chaos engineering testing environments.
Capabilities
- Traffic Control: Configure tc (traffic control) for latency, bandwidth, and packet loss simulation
- Network Namespaces: Set up network namespaces for network isolation testing
- WAN Emulation: Emulate WAN conditions with netem (delay, jitter, loss, corruption)
- Virtual Topologies: Create virtual network topologies for testing
- Packet Manipulation: Simulate packet loss, reordering, duplication, and corruption
- Degraded Conditions Testing: Test applications under degraded network conditions
- Chaos Scenarios: Generate chaos engineering scenarios for resilience testing
- Container Networking: Configure Docker/Kubernetes network simulation
Tools and Dependencies
tc- Traffic control for Linuxnetem- Network emulatorip netns- Network namespacesmininet- Network emulatortoxiproxy- TCP proxy for chaos testingcomcast- Network simulation toolpumba- Container chaos testing
Target Processes
- network-testing-framework.js
- load-testing-tool.js
- protocol-fuzzer.js
- tcp-socket-server.js
Usage Examples
Latency Simulation
tc qdisc add dev eth0 root netem delay 100ms 20ms distribution normal
tc qdisc change dev eth0 root netem delay 200ms 40ms 25% correlation
Packet Loss Simulation
tc qdisc add dev eth0 root netem loss 5% 25%
tc qdisc add dev eth0 root netem loss gemodel 1% 10% 70% 0.1%
Bandwidth Limiting
tc qdisc add dev eth0 root tbf rate 1mbit burst 32kbit latency 400ms
Network Namespace Isolation
ip netns add test_ns
ip link add veth0 type veth peer name veth1
ip link set veth1 netns test_ns
ip netns exec test_ns ip addr add 10.0.0.2/24 dev veth1
ip netns exec test_ns ip link set veth1 up
Toxiproxy Chaos
toxiproxy-cli create -l localhost:6379 -u localhost:6380 redis_proxy
toxiproxy-cli toxic add -t latency -a latency=1000 redis_proxy
Quality Gates
- Network conditions applied correctly
- Application behavior under degraded conditions verified
- Chaos scenarios executed successfully
- Recovery testing completed
- Performance baselines established
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