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SKILL verified MIT Self-run

Ssh Ops

skill-seokheejang-claude-ops-skills-ssh-ops · by seokheejang

SSH server inspection - check server status, logs, processes (read-only)

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Install

$ agentstack add skill-seokheejang-claude-ops-skills-ssh-ops

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • Prompt-injection patterns
  • Secret / credential exfiltration
  • Dangerous shell & filesystem operations
  • Untrusted network calls
  • Known-malicious package signatures

What it can access

  • Network access No
  • Filesystem access No
  • Shell / process execution No
  • Environment & secrets No
  • Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

Verified badge

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/skill-seokheejang-claude-ops-skills-ssh-ops)

Reliability & compatibility

Security review passed
0 installs to date
no reviews yet
2mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

SSH Operations Skill

서버 조회 전용 skill. SSH를 통한 READ-ONLY 인스펙션만 수행.

Safety: READ-ONLY

허용: uptime, free, df, du, ps, top, ss, systemctl status, journalctl, tail, cat, grep, find, stat. 금지: rm, mv, cp, systemctl start/stop/restart, apt/yum install, 파일 수정. 변경 필요시 명령어를 텍스트로 안내.

SSH 연결 정책

모든 SSH 호출은 아래 옵션을 반드시 포함. 대화형 prompt·행 걸림·MITM 위험 차단.

| 옵션 | 값 | 이유 | |------|-----|------| | BatchMode | yes | 비밀번호/passphrase prompt 차단. 키 인증 실패시 즉시 종료 (자동화 중 행 걸림 방지) | | ConnectTimeout | 10 | 네트워크 응답 없을 때 10초 내 실패 | | StrictHostKeyChecking | accept-new | 첫 접속 시 자동 known_hosts 추가(TOFU), 이후 호스트 키 변경되면 거부 | | ServerAliveInterval | 30 | 세션 중 연결 유지 |

표준 호출 패턴:

ssh -o BatchMode=yes -o ConnectTimeout=10 -o StrictHostKeyChecking=accept-new -o ServerAliveInterval=30 $ARGUMENTS ""

처리 분기:

  • 연결 실패 (exit 255): known_hosts 충돌이면 키 변경 가능성 — 재접속 전 사용자 확인 요청. 키 인증 실패면 ~/.ssh/config, 에이전트, 키 배포 상태 확인 안내
  • Permission denied: 사용자명/포트 재확인 안내, 쓰기 작업 금지
  • 장시간 명령 (tail -f, top without -bn1): 금지 — batch 종료형 플래그 사용 (journalctl -n 100, top -bn1)

Arguments

$ARGUMENTS = 접속 호스트 (예: user@host, user@10.0.0.1, user@host:2222 — 포트는 -p 2222로 변환).

Workflow

모든 명령은 위 SSH 연결 정책의 표준 호출 패턴 사용. 이하 표의 `` 부분만 치환.

| 단계 | 명령어 | 확인 사항 | |------|--------|-----------| | 기본 상태 | uptime, nproc | load average (vs CPU cores), uptime | | 메모리 | free -h | available, journalctl -u -n 100, tail -n 100 /var/log/ | 필요시 | | 네트워크 | ss -tlnp, ss -s` | 필요시, 리스닝 포트 확인 |

임계치

| 항목 | Warning | Critical | |------|---------|----------| | Load (1min) | > cores | > cores x 2 | | 메모리 available | 85% | > 95% | | Swap | > 50% | > 80% |

Troubleshooting

  • 높은 CPU: ps --sort=-%cpu, top -bn1. 특정 프로세스 비정상 여부
  • 메모리 부족: free -h, ps --sort=-%mem, dmesg | grep -i oom | tail -10
  • 디스크 풀: du -sh /var/log/* | sort -rh | head -10, journalctl --disk-usage
  • 서비스 장애: systemctl status, journalctl --since "1 hour ago", is-enabled

Output

접속 호스트 명시. 메트릭 정리. 임계치 초과 굵게. 조치는 텍스트 안내.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

Reviews

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Versions

  • v0.1.0 Imported from the upstream source.