cisco-ios-patterns
Cisco IOS and IOS-XE review patterns for show commands, config hierarchy, wildcard masks, ACL placement, interface hygiene, and safe change-window verification. Use when reading, writing, or reviewing Cisco IOS / IOS-XE configuration or planning a change window.
- Kind
- Skill
- Works with
- Claude Code, Codex
- Languages
- Swift
- Source
- affaan-m/ECC @ d3b8a3e90890
- Path
- skills/cisco-ios-patterns/SKILL.md
- License
- MIT
- Jobs
- Review, Planning, Documentation
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# Cisco IOS Patterns Use this skill when reviewing Cisco IOS or IOS-XE snippets, building a change-window checklist, or explaining how to collect evidence from a router or switch without making the incident worse. ## When to Use - Reviewing IOS or IOS-XE configuration before a planned change. - Choosing read-only `show` commands for troubleshooting. - Checking ACL wildcard masks and interface direction. - Explaining global, interface, routing process, and line configuration modes. - Verifying that a change landed in running config and was saved intentionally. ## Operating Rules Treat IOS examples as patterns, not paste-ready production changes. Confirm the platform, interface names, current config, rollback path, and out-of-band access before making changes on a real device. Prefer this workflow: 1. Capture current state with read-only commands. 2. Review the exact candidate config. 3. Confirm management access cannot be locked out. 4. Apply the smallest change in a maintenance window. 5. Re-read state, compare to the baseline, then save only after validation. ## Mode Reference ```text Router> enable Router# show running-config Router# configure terminal …