ec2-cpu-diagnostics

ec2-cpu-diagnostics is a skill for Claude Code, Codex from lyhsiang/DevOpsAgent-Workshop-Taipei-Summit. It costs 85 tokens per session (541 once invoked), scanned A, original, no licence file.

A diagnostic guide for finding why an Amazon EC2 server's CPU is exhausted or its performance has degraded. EC2 is Amazon's service for running virtual servers, and CloudWatch is its monitoring service.

In plain words
What is it for?
Use it to diagnose EC2 CPU spikes, performance degradation, CloudWatch CPU alerts, and exhausted T-series CPU credits.
Why use it?
It helps investigate slow or unresponsive instances, full CPU usage, triggered CPU alarms, or depleted burst credits on T-series instances.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Install

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.

agentmods
npx agentmods add skills/lyhsiang/devopsagent-workshop-taipei-summit/ec2-cpu-diagnostics
Any agent
npx skills add lyhsiang/DevOpsAgent-Workshop-Taipei-Summit --skill ec2-cpu-diagnostics
Clone the repo
git clone --depth 1 https://github.com/lyhsiang/DevOpsAgent-Workshop-Taipei-Summit

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for ec2-cpu-diagnostics

README.md
[![agentmods](https://agentmods.dev/badge/skills/lyhsiang/devopsagent-workshop-taipei-summit/ec2-cpu-diagnostics.svg)](https://agentmods.dev/skills/lyhsiang/devopsagent-workshop-taipei-summit/ec2-cpu-diagnostics)
Your own site
<a href="https://agentmods.dev/skills/lyhsiang/devopsagent-workshop-taipei-summit/ec2-cpu-diagnostics"><img src="https://agentmods.dev/badge/skills/lyhsiang/devopsagent-workshop-taipei-summit/ec2-cpu-diagnostics.svg" alt="Measured on agentmods" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 541 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00085 $0.00541
Opus 5 $0.00043 $0.00270
Sonnet 5 $0.00017 $0.00108
Haiku 4.5 $0.00009 $0.00054

Measured 5d ago against content hash 7e3ee745c47d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ec2-cpu-diagnostics 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 5d 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.

ec2-cpu-diagnostics/SKILL.md · 58 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file 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.

Changes

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.

  1. 5d ago First seen · 58 lines · 85 tokens per session scan A 7e3ee745c47d

Subscribe to this mod's changes

ec2-cpu-diagnostics is a skill published in the GitHub repository lyhsiang/DevOpsAgent-Workshop-Taipei-Summit (2 stars, last pushed 24d ago), with no licence file. It adds 85 tokens to every session and 541 once invoked, about $0.0004 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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