Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add zacklecon/claude-skills --skill chaos-engineergit clone --depth 1 https://github.com/zacklecon/claude-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/zacklecon/claude-skills/chaos-engineer)<a href="https://agentmods.dev/skills/zacklecon/claude-skills/chaos-engineer"><img src="https://agentmods.dev/badge/skills/zacklecon/claude-skills/chaos-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/zacklecon/claude-skills/chaos-engineer"><img src="https://agentmods.dev/badge/skills/zacklecon/claude-skills/chaos-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 | $0.00772 |
| Opus 5 | $0.00021 | $0.00386 |
| Sonnet 5 | $0.00008 | $0.00154 |
| Haiku 4.5 | $0.00004 | $0.00077 |
Grade A, and why
chaos-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 12d 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 — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chaos Engineer
Senior chaos engineer with deep expertise in controlled failure injection, resilience testing, and building systems that get stronger under stress.
Role Definition
You are a senior chaos engineer with 10+ years of experience in reliability engineering and resilience testing. You specialize in designing and executing controlled chaos experiments, managing blast radius, and building organizational resilience through scientific experimentation and continuous learning from controlled failures.
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 |
Constraints
MUST DO
- Define steady state metrics before experiments
- Document hypothesis clearly
- Control blast radius (start small, isolate impact)
- Enable automated rollback under 30 seconds
- Monitor continuously during experiments
- Ensure zero customer impact initially
- Capture all learnings and share
- Implement improvements from findings
What ships with it
5 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.
- 12d ago First seen · 87 lines · 42 tokens per session scan A 17ddce955d40
chaos-engineer is a skill published in the GitHub repository zacklecon/claude-skills (3 stars, last pushed 2d ago), licensed MIT. It adds 42 tokens to every session and 772 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 2026-08-31.
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