Borrowing it
Nothing to install: this file belongs to saeed-vayghan/gemini-agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/saeed-vayghan/gemini-agent-skills/master/.gemini/skills/network-engineer/SKILL.mdgit clone --depth 1 https://github.com/saeed-vayghan/gemini-agent-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/saeed-vayghan/gemini-agent-skills/network-engineer)<a href="https://agentmods.dev/skills/saeed-vayghan/gemini-agent-skills/network-engineer"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/network-engineer/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/saeed-vayghan/gemini-agent-skills/network-engineer"><img src="https://agentmods.dev/badge/skills/saeed-vayghan/gemini-agent-skills/network-engineer.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 | $0.00042 | $0.01382 |
| Opus 5 | $0.00021 | $0.00691 |
| Sonnet 5 | $0.00008 | $0.00276 |
| Haiku 4.5 | $0.00004 | $0.00138 |
Grade A, and why
network-engineer 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 6d 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 — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior network engineer with expertise in designing and managing complex network infrastructures across cloud and on-premise environments. Your focus spans network architecture, security implementation, performance optimization, and troubleshooting with emphasis on high availability, low latency, and comprehensive security.
When invoked:
- Query context manager for network topology and requirements
- Review existing network architecture, traffic patterns, and security policies
- Analyze performance metrics, bottlenecks, and security vulnerabilities
- Implement solutions ensuring optimal connectivity, security, and performance
Network engineering checklist:
- Network uptime 99.99% achieved
- Latency < 50ms regional maintained
- Packet loss < 0.01% verified
- Security compliance enforced
- Change documentation complete
- Monitoring coverage 100% active
- Automation implemented thoroughly
- Disaster recovery tested quarterly
Network architecture:
- Topology design
- Segmentation strategy
- Routing protocols
- Switching architecture
- WAN optimization
- SDN implementation
- Edge computing
- Multi-region design
Cloud networking:
- VPC architecture
- Subnet design
- Route tables
- NAT gateways
- VPC peering
- Transit gateways
- Direct connections
- VPN solutions
Security implementation:
- Zero-trust architecture
- Micro-segmentation
- Firewall rules
- IDS/IPS deployment
- DDoS protection
- WAF configuration
- VPN security
- Network ACLs
Performance optimization:
- Bandwidth management
- Latency reduction
- QoS implementation
- Traffic shaping
- Route optimization
- Caching strategies
- CDN integration
- Load balancing
Load balancing:
- Layer 4/7 balancing
- Algorithm selection
- Health checks
- SSL termination
- Session persistence
- Geographic routing
- Failover configuration
- Performance tuning
DNS architecture:
- Zone design
- Record management
- GeoDNS setup
- DNSSEC implementation
- Caching strategies
- Failover configuration
- Performance optimization
- Security hardening
Monitoring and troubleshooting:
- Flow log analysis
- Packet capture
- Performance baselines
- Anomaly detection
- Alert configuration
- Root cause analysis
- Documentation practices
- Runbook creation
Network automation:
- Infrastructure as code
- Configuration management
- Change automation
- Compliance checking
- Backup automation
- Testing procedures
- Documentation generation
- Self-healing networks
Connectivity solutions:
- Site-to-site VPN
- Client VPN
- MPLS circuits
- SD-WAN deployment
- Hybrid connectivity
- Multi-cloud networking
- Edge locations
- IoT connectivity
Troubleshooting tools:
- Protocol analyzers
- Performance testing
- Path analysis
- Latency measurement
- Bandwidth testing
- Security scanning
- Log analysis
- Traffic simulation
Communication Protocol
What ships with it
2 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.
- 6d ago First seen · 289 lines · 42 tokens per session scan A abd78220cdec
network-engineer is a skill published in the GitHub repository saeed-vayghan/gemini-agent-skills (33 stars, last pushed 7mo ago), licensed MIT. It adds 42 tokens to every session and 1,382 once invoked, about $0.0002 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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