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chaos-engineer
Designs chaos experiments, creates failure injection frameworks, and facilitates game day exercises for distributed systems — producing runbooks, experiment manifests, rollback procedures, and post-mortem templates. Use when designing chaos experiments, implementing failure injec
Ringkasan
Designs chaos experiments, creates failure injection frameworks, and facilitates game day exercises for distributed systems — producing runbooks, experiment manifests, rollback procedures, and post-mortem templates. Use when designing chaos experiments, implementing failure injection frameworks, or conducting game day exercises. Invoke for chaos experiments, resilience testing, blast radius control, game days, antifragile systems, fault injection, Chaos Monkey, Litmus Chaos.
Baca dokumentasi lengkap
Dokumentasi sumber, bukan instruksi untuk situs ini. Periksa izin sebelum menjalankan perintah.
Chaos Engineer
When to Use This Skill
- Designing and executing chaos experiments
- Implementing failure injection frameworks (Chaos Monkey, Litmus, etc.)
- Planning and conducting game day exercises
- Building blast radius controls and safety mechanisms
- Setting up continuous chaos testing in CI/CD
- Improving system resilience based on experiment findings
Core Workflow
- System Analysis - Map architecture, dependencies, critical paths, and failure modes
- Experiment Design - Define hypothesis, steady state, blast radius, and safety controls
- Execute Chaos - Run controlled experiments with monitoring and quick rollback
- Learn & Improve - Document findings, implement fixes, enhance monitoring
- Automate - Integrate chaos testing into CI/CD for continuous resilience
Reference Guide
Load detailed guidance based on context:
| Topic | Reference | Load When |
|---|---|---|
| Experiments | references/experiment-design.md | Designing hypothesis, blast radius, rollback |
| Infrastructure | references/infrastructure-chaos.md | Server, network, zone, region failures |
| Kubernetes | references/kubernetes-chaos.md | Pod, node, Litmus, chaos mesh experiments |
| Tools & Automation | references/chaos-tools.md | Chaos Monkey, Gremlin, Pumba, CI/CD integration |
| Game Days | references/game-days.md | Planning, executing, learning from game days |
Safety Checklist
Non-obvious constraints that must be enforced on every experiment:
- Steady state first — define and verify baseline metrics before injecting any failure
- Blast radius cap — start with the smallest possible impact scope; expand only after validation
- Automated rollback ≤ 30 seconds — abort path must be scripted and tested before the experiment begins
- Single variable — change only one failure condition at a time until behaviour is well understood
- No production without safety nets — customer-facing environments require circuit breakers, feature flags, or canary isolation
- Close the loop — every experiment must produce a written learning summary and at least one tracked improvement
Output Templates
When implementing chaos engineering, provide:
- Experiment design document (hypothesis, metrics, blast radius)
- Implementation code (failure injection scripts/manifests)
- Monitoring setup and alert configuration
- Rollback procedures and safety controls
- Learning summary and improvement recommendations
Concrete Example: Pod Failure Experiment (Litmus Chaos)
The following shows a complete experiment — from hypothesis to rollback — using Litmus Chaos on Kubernetes.
Step 1 — Define steady state and apply the experiment
# Verify baseline: p99 latency < 200ms, error rate < 0.1%
kubectl get deploy my-service -n production
kubectl top pods -n production -l app=my-service
Step 2 — Create and apply a Litmus ChaosEngine manifest
# chaos-pod-delete.yaml
apiVersion: litmuschaos.io/v1alpha1
kind: ChaosEngine
metadata:
name: my-service-pod-delete
namespace: production
spec:
appinfo:
appns: production
applabel: "app=my-service"
appkind: deployment
# Limit blast radius: only 1 replica at a time
engineState: active
chaosServiceAccount: litmus-admin
experiments:
- name: pod-delete
spec:
components:
env:
- name: TOTAL_CHAOS_DURATION
value: "60" # seconds
- name: CHAOS_INTERVAL
value: "20" # delete one pod every 20s
- name: FORCE
value: "false"
- name: PODS_AFFECTED_PERC
value: "33" # max 33% of replicas affected
# Apply the experiment
kubectl apply -f chaos-pod-delete.yaml
# Watch experiment status
kubectl describe chaosengine my-service-pod-delete -n production
kubectl get chaosresult my-service-pod-delete-pod-delete -n production -w
Step 3 — Monitor during the experiment
# Tail application logs for errors
kubectl logs -l app=my-service -n production --since=2m -f
# Check ChaosResult verdict when complete
kubectl get chaosresult my-service-pod-delete-pod-delete \
-n production -o jsonpath='{.status.experimentStatus.verdict}'
Step 4 — Rollback / abort if steady state is violated
# Immediately stop the experiment
kubectl patch chaosengine my-service-pod-delete \
-n production --type merge -p '{"spec":{"engineState":"stop"}}'
# Confirm all pods are healthy
kubectl rollout status deployment/my-service -n production
Concrete Example: Network Latency with toxiproxy
# Install toxiproxy CLI
brew install toxiproxy # macOS; use the binary release on Linux
# Start toxiproxy server (runs alongside your service)
toxiproxy-server &
# Create a proxy for your downstream dependency
toxiproxy-cli create -l 0.0.0.0:22222 -u downstream-db:5432 db-proxy
# Inject 300ms latency with 10% jitter — blast radius: this proxy only
toxiproxy-cli toxic add db-proxy -t latency -a latency=300 -a jitter=30
# Run your load test / observe metrics here ...
# Remove the toxic to restore normal behaviour
toxiproxy-cli toxic remove db-proxy -n latency_downstream
Concrete Example: Chaos Monkey (Spinnaker / standalone)
# chaos-monkey-config.yml — restrict to a single ASG
deployment:
enabled: true
regionIndependence: false
chaos:
enabled: true
meanTimeBetweenKillsInWorkDays: 2
minTimeBetweenKillsInWorkDays: 1
grouping: APP # kill one instance per app, not per cluster
exceptions:
- account: production
region: us-east-1
detail: "*-canary" # never kill canary instances
# Apply and trigger a manual kill for testing
chaos-monkey --app my-service --account staging --dry-run false
Metadata berkas
name: chaos-engineer description: Designs chaos experiments, creates failure injection frameworks, and facilitates game day exercises for distributed systems — producing runbooks, experiment manifests, rollback procedures, and post-mortem templates. Use when designing chaos experiments, implementing failure injection frameworks, or conducting game day exercises. Invoke for chaos experiments, resilience testing, blast radius control, game days, antifragile systems, fault injection, Chaos Monkey, Litmus Chaos. license: MIT metadata: author: https://github.com/Jeffallan version: "1.1.0" domain: devops triggers: chaos engineering, resilience testing, failure injection, game day, blast radius, chaos experiment, fault injection, Chaos Monkey, Litmus Chaos, antifragile role: specialist scope: implementation output-format: code related-skills: sre-engineer, devops-engineer, kubernetes-specialist
Lihat teks asli
---
name: chaos-engineer
description: Designs chaos experiments, creates failure injection frameworks, and facilitates game day exercises for distributed systems — producing runbooks, experiment manifests, rollback procedures, and post-mortem templates. Use when designing chaos experiments, implementing failure injection frameworks, or conducting game day exercises. Invoke for chaos experiments, resilience testing, blast radius control, game days, antifragile systems, fault injection, Chaos Monkey, Litmus Chaos.
license: MIT
metadata:
author: https://github.com/Jeffallan
version: "1.1.0"
domain: devops
triggers: chaos engineering, resilience testing, failure injection, game day, blast radius, chaos experiment, fault injection, Chaos Monkey, Litmus Chaos, antifragile
role: specialist
scope: implementation
output-format: code
related-skills: sre-engineer, devops-engineer, kubernetes-specialist
---
# Chaos Engineer
## When to Use This Skill
- Designing and executing chaos experiments
- Implementing failure injection frameworks (Chaos Monkey, Litmus, etc.)
- Planning and conducting game day exercises
- Building blast radius controls and safety mechanisms
- Setting up continuous chaos testing in CI/CD
- Improving system resilience based on experiment findings
## Core Workflow
1. **System Analysis** - Map architecture, dependencies, critical paths, and failure modes
2. **Experiment Design** - Define hypothesis, steady state, blast radius, and safety controls
3. **Execute Chaos** - Run controlled experiments with monitoring and quick rollback
4. **Learn & Improve** - Document findings, implement fixes, enhance monitoring
5. **Automate** - Integrate chaos testing into CI/CD for continuous resilience
## Reference Guide
Load detailed guidance based on context:
| Topic | Reference | Load When |
|-------|-----------|-----------|
| Experiments | `references/experiment-design.md` | Designing hypothesis, blast radius, rollback |
| Infrastructure | `references/infrastructure-chaos.md` | Server, network, zone, region failures |
| Kubernetes | `references/kubernetes-chaos.md` | Pod, node, Litmus, chaos mesh experiments |
| Tools & Automation | `references/chaos-tools.md` | Chaos Monkey, Gremlin, Pumba, CI/CD integration |
| Game Days | `references/game-days.md` | Planning, executing, learning from game days |
## Safety Checklist
Non-obvious constraints that must be enforced on every experiment:
- **Steady state first** — define and verify baseline metrics before injecting any failure
- **Blast radius cap** — start with the smallest possible impact scope; expand only after validation
- **Automated rollback ≤ 30 seconds** — abort path must be scripted and tested before the experiment begins
- **Single variable** — change only one failure condition at a time until behaviour is well understood
- **No production without safety nets** — customer-facing environments require circuit breakers, feature flags, or canary isolation
- **Close the loop** — every experiment must produce a written learning summary and at least one tracked improvement
## Output Templates
When implementing chaos engineering, provide:
1. Experiment design document (hypothesis, metrics, blast radius)
2. Implementation code (failure injection scripts/manifests)
3. Monitoring setup and alert configuration
4. Rollback procedures and safety controls
5. Learning summary and improvement recommendations
## Concrete Example: Pod Failure Experiment (Litmus Chaos)
The following shows a complete experiment — from hypothesis to rollback — using Litmus Chaos on Kubernetes.
### Step 1 — Define steady state and apply the experiment
```bash
# Verify baseline: p99 latency < 200ms, error rate < 0.1%
kubectl get deploy my-service -n production
kubectl top pods -n production -l app=my-service
```
### Step 2 — Create and apply a Litmus ChaosEngine manifest
```yaml
# chaos-pod-delete.yaml
apiVersion: litmuschaos.io/v1alpha1
kind: ChaosEngine
metadata:
name: my-service-pod-delete
namespace: production
spec:
appinfo:
appns: production
applabel: "app=my-service"
appkind: deployment
# Limit blast radius: only 1 replica at a time
engineState: active
chaosServiceAccount: litmus-admin
experiments:
- name: pod-delete
spec:
components:
env:
- name: TOTAL_CHAOS_DURATION
value: "60" # seconds
- name: CHAOS_INTERVAL
value: "20" # delete one pod every 20s
- name: FORCE
value: "false"
- name: PODS_AFFECTED_PERC
value: "33" # max 33% of replicas affected
```
```bash
# Apply the experiment
kubectl apply -f chaos-pod-delete.yaml
# Watch experiment status
kubectl describe chaosengine my-service-pod-delete -n production
kubectl get chaosresult my-service-pod-delete-pod-delete -n production -w
```
### Step 3 — Monitor during the experiment
```bash
# Tail application logs for errors
kubectl logs -l app=my-service -n production --since=2m -f
# Check ChaosResult verdict when complete
kubectl get chaosresult my-service-pod-delete-pod-delete \
-n production -o jsonpath='{.status.experimentStatus.verdict}'
```
### Step 4 — Rollback / abort if steady state is violated
```bash
# Immediately stop the experiment
kubectl patch chaosengine my-service-pod-delete \
-n production --type merge -p '{"spec":{"engineState":"stop"}}'
# Confirm all pods are healthy
kubectl rollout status deployment/my-service -n production
```
## Concrete Example: Network Latency with toxiproxy
```bash
# Install toxiproxy CLI
brew install toxiproxy # macOS; use the binary release on Linux
# Start toxiproxy server (runs alongside your service)
toxiproxy-server &
# Create a proxy for your downstream dependency
toxiproxy-cli create -l 0.0.0.0:22222 -u downstream-db:5432 db-proxy
# Inject 300ms latency with 10% jitter — blast radius: this proxy only
toxiproxy-cli toxic add db-proxy -t latency -a latency=300 -a jitter=30
# Run your load test / observe metrics here ...
# Remove the toxic to restore normal behaviour
toxiproxy-cli toxic remove db-proxy -n latency_downstream
```
## Concrete Example: Chaos Monkey (Spinnaker / standalone)
```bash
# chaos-monkey-config.yml — restrict to a single ASG
deployment:
enabled: true
regionIndependence: false
chaos:
enabled: true
meanTimeBetweenKillsInWorkDays: 2
minTimeBetweenKillsInWorkDays: 1
grouping: APP # kill one instance per app, not per cluster
exceptions:
- account: production
region: us-east-1
detail: "*-canary" # never kill canary instances
# Apply and trigger a manual kill for testing
chaos-monkey --app my-service --account staging --dry-run false
```
[Documentation](https://jeffallan.github.io/claude-skills/skills/devops/chaos-engineer/)
Tinjau sumber
Harga dan biaya penggunaan
- Dapatkan skill
- Harga belum dikonfirmasi
- Jalankan
- Persyaratan belum dikonfirmasi. Periksa biaya agen, API, dan layanan di sumbernya.
- Lisensi
- MIT
- Harga belum dikonfirmasi
- Harga belum dikonfirmasi. Tautan sumber dan instalasi yang ada tetap tersedia.
Gratis diperoleh bukan berarti gratis dijalankan. Harga bukan penilaian keamanan. Kirim informasi harga →
Sumber skill tercatat
Jalur instruksi telah dicatat. Ini bukan uji eksekusi, jaminan keamanan, atau sertifikasi kompatibilitas.
Tinjau sebelum memasang: Hindari pemasangan otomatis
Lisensi: MIT
- Dependency or permission surface needs review
- Permission surface may require sandboxing
- Reference examples contain intentionally destructive commands (e.g., AWS instance termination, pod deletion, CPU injection); these are appropriate for chaos engineering but could be dangerous if copied without the skill's own safety checklist.
- The SKILL.md excerpt appears to end mid-command in the monitoring example, so verify the full file is not truncated in the repository.
- Quality score needs review
- Permission surface needs review: secrets or environment access, shell or command execution
- Dependency/runtime risk: command execution surface, credential or environment access
- Permission surface: secrets or environment access, shell or command execution
Daftar alat adalah petunjuk metadata, bukan kompatibilitas teruji. Prompt adalah saran.
Mulai dengan tugas kecil
- 1Baca sumber dan pastikan masukan, keluaran, dependensi, serta izin.
- 2Minta rencana dari agent. Setujui pengaturan dan biaya sebelum uji terisolasi.
- 3Periksa hasil dan berkas yang berubah. Laporkan hanya yang dijalankan dan simpan revisi sumber.
Periksa dependensi, kunci API, dan biaya layanan pihak ketiga pada sumber. Repositori publik tidak berarti semua layanan gratis.
Sumber dan catatan penggunaan
Metadata dan tinjauan bersifat saran. Popularitas, penemuan sumber, dan keberhasilan eksekusi adalah fakta berbeda.
- Repositori sumber
- Jeffallan/claude-skills
- Lisensi
- MIT
- Versi
- 1.0.0
- Push GitHub terakhir
- 7 Agu 2026
- Direktori diperbarui
- 2 Sep 2026
- Jalur instruksi
- skills/chaos-engineer/SKILL.md @ 882ef55e377d
Versi dilaporkan dalam metadata direktori; periksa rilis sumber.
Kualitas
85/100
Sangat baik
Kepercayaan
64/100
Hanya sandbox
Audit
80/100
Perlu ditinjau
- Dependency or permission surface needs review
- Permission surface may require sandboxing
- Reference examples contain intentionally destructive commands (e.g., AWS instance termination, pod deletion, CPU injection); these are appropriate for chaos engineering but could be dangerous if copied without the skill's own safety checklist.
- The SKILL.md excerpt appears to end mid-command in the monitoring example, so verify the full file is not truncated in the repository.
- Quality score needs review
- Permission surface needs review: secrets or environment access, shell or command execution
- Dependency/runtime risk: command execution surface, credential or environment access
- Permission surface: secrets or environment access, shell or command execution
- Verified installs
- —
- Hasil
- —
Menyalin bukan memasang. Jumlah instalasi memerlukan laporan berhasil dan bukan jaminan kualitas menyeluruh.
Akses agent
API Registry menyediakan sinyal keputusan, kepercayaan, audit, use case, dan pemasangan tanpa mengikis UI.
Detail lainnya
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"Permission surface may require sandboxing",
"Reference examples contain intentionally destructive commands (e.g., AWS instance termination, pod deletion, CPU injection); these are appropriate for chaos engineering but could be dangerous if copied without the skill's own safety checklist.",
"The SKILL.md excerpt appears to end mid-command in the monitoring example, so verify the full file is not truncated in the repository.",
"Quality score needs review",
"Permission surface needs review: secrets or environment access, shell or command execution",
"Dependency/runtime risk: command execution surface, credential or environment access",
"Permission surface: secrets or environment access, shell or command execution"
]
},
"safety_gate": {
"tier": "blocked",
"label": "Blocked for auto-install",
"auto_install_policy": "block",
"auto_install_allowed": false,
"human_review_required": true,
"blocked": true,
"recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
},
"quality": {
"score": 85,
"label": "Excellent"
},
"supply": {
"track": "Coding and developer agents",
"scenario": "Coding agents",
"maintenance": "2mo since push",
"risk": "Needs review"
},
"alternative_skills": [],
"do_not_use_when": [
"teams that need a vendor-supported SLA",
"production agents without a repository review",
"Reference examples contain intentionally destructive commands (e.g., AWS instance termination, pod deletion, CPU injection); these are appropriate for chaos engineering but could be dangerous if copied without the skill's own safety checklist.",
"High-risk permission hints: Shell or command execution, Secrets or environment access",
"Dependency or permission surface needs review",
"Permission surface may require sandboxing",
"The SKILL.md excerpt appears to end mid-command in the monitoring example, so verify the full file is not truncated in the repository.",
"Quality score needs review"
],
"agent_contract": {
"task_input": "Use chaos-engineer in an agent workflow",
"recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first.",
"install_policy": "block",
"minimum_review_before_use": [
"Trust: 72/100 Strong shortlist",
"Audit: 80/100 Needs review",
"Safety: 40/100 Avoid automatic install",
"Review repository, license, install command, and permission surface before production use."
],
"expected_agent_output": {
"selected_skill": "jeffallan-chaos-engineer (chaos-engineer)",
"install_command": "npx skills add Jeffallan/claude-skills --skill chaos-engineer",
"risk_summary": "Needs review; Blocked for auto-install; Review before production",
"verification_result": "Report the smallest successful task, files touched, warnings, and any missing setup."
}
},
"outcome_feedback": {
"endpoint": "https://www.openagentskill.com/api/agent/outcome",
"method": "POST",
"requires_resolve_event_id": true,
"event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
"expected_outcomes": [
"success",
"failed",
"not_relevant",
"blocked_by_risk",
"setup_required"
],
"payload_template": {
"event_id": "<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>",
"skill_slug": "jeffallan-chaos-engineer",
"task": "Use chaos-engineer in an agent workflow",
"agent": "codex",
"outcome": "success",
"install_used": true,
"risk_blocked": false,
"setup_required": false,
"task_success": true,
"output_quality": 4,
"error_type": null,
"human_review_required": false,
"workspace": "sandbox",
"time_to_useful_ms": 120000,
"notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
}
},
"endpoints": {
"web": "https://www.openagentskill.com/skills/jeffallan-chaos-engineer",
"api": "https://www.openagentskill.com/api/agent/skills/jeffallan-chaos-engineer",
"audit": "https://www.openagentskill.com/skills/jeffallan-chaos-engineer/audit",
"eval": "https://www.openagentskill.com/api/agent/evals?slug=jeffallan-chaos-engineer&task=Use%20chaos-engineer%20in%20an%20agent%20workflow&max_risk=medium",
"resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20chaos-engineer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
"receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20chaos-engineer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
"install": "https://www.openagentskill.com/api/skills/jeffallan-chaos-engineer/install",
"manifest": "https://www.openagentskill.com/api/registry/manifest/jeffallan-chaos-engineer"
}
}Untuk kreator
Sumber listing
Diindeks Registry
Listing ini diindeks dari sumber publik dan belum ditandai resmi hingga klaim pemelihara disetujui.
- Kreator
- Jeffallan
- Sumber
- Jeffallan/claude-skills
- Diindeks oleh
- Indeks komunitas OpenAgentSkill
Atribusi menautkan ke repositori publik atau profil kreator. Kreator dapat mengklaim listing untuk memperbarui sinyal kepemilikan.
Klaim skill iniKlaim pemilik
Klaim listing skill ini
Listing Diindeks Registry ini dikaitkan dengan Jeffallan, tetapi belum ditandai resmi. Klaim untuk menambahkan sinyal pemilik terverifikasi dan membuat pembaruan peluncuran, pemasangan, serta audit berikutnya lebih tepercaya.
Kit berbagi
Kit backlink kreator
Tambahkan badge bukti ke README Anda
Tampilkan listing kanonis, sinyal kepercayaan dan audit saat ini, serta bukti Agent-Proven nyata di tempat pengembang mengevaluasi repositori.
[](https://www.openagentskill.com/skills/jeffallan-chaos-engineer?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[](https://www.openagentskill.com/skills/jeffallan-chaos-engineer?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[](https://www.openagentskill.com/skills/jeffallan-chaos-engineer/audit)
[](https://www.openagentskill.com/skills/jeffallan-chaos-engineer?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)Sinyal komunitas
Bagikan apakah skill ini bermanfaat untuk alur kerja Agent Anda. Masukan gabungan meningkatkan peringkat dari waktu ke waktu.
