What is ecs-operation-review?

A read-only review of Amazon ECS services, which run containerized applications on AWS. It examines reliability, monitoring, security, operations, performance, and related settings using AWS APIs and seven days of CloudWatch metrics.

Use it to assess ECS services or clusters for reliability, security, observability, and readiness for operations onboarding.

It provides a structured assessment without changing the AWS environment. It helps identify operational gaps and suggest useful alarm thresholds.

ecs-operation-review — Skill for Claude Code and Codex by aws

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.

Any agent

npx skills add aws/tools-for-devops-agent --skill ecs-operation-review

Clone the repo

git clone --depth 1 https://github.com/aws/tools-for-devops-agent

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aws/tools-for-devops-agent/ecs-operation-review/github.svg)](https://agentmods.dev/skills/aws/tools-for-devops-agent/ecs-operation-review)

Your own site

<a href="https://agentmods.dev/skills/aws/tools-for-devops-agent/ecs-operation-review"><img src="https://agentmods.dev/badge/skills/aws/tools-for-devops-agent/ecs-operation-review/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aws/tools-for-devops-agent/ecs-operation-review"><img src="https://agentmods.dev/badge/skills/aws/tools-for-devops-agent/ecs-operation-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 134 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,505 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00134	$0.04505
Opus 5.5	$0.00054	$0.01802
Sonnet 5.5	$0.00027	$0.00901
Haiku 4.5	$0.00013	$0.00451

Measured 21d ago against content hash e3f269a2f8a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ecs-operation-review 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 21d 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.

skills/ecs-operation-review/SKILL.md · 247 lines

How it starts

The opening of the file, as written. The whole thing — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ECS Operations Review Skill

Overview

Execute a comprehensive Amazon ECS operations review across the 6 review pillars with ✓/✗/N/A observations, 7-day CloudWatch baseline metrics, and alarm threshold recommendations for IDR onboarding.

Usage

User mentions "ECS operations review", "ECS assessment", "ECS review"
User provides ECS service ARN(s) for operations review
User asks to review ECS services for a workload
User requests ECS reliability or security review
Delegated ECS service assessment from UOPS

Core Concepts

Review Pillars: Six assessment dimensions — Resiliency & HA, Observability, Security, Operations, Performance, Additional Analysis
ECS Service/Cluster: The primary resources assessed — includes tasks, services, and cluster configuration
AWS API: Public AWS service APIs used for all data collection, called read-only (describe/list/get) via the AWS CLI, an AWS SDK, or an AWS API MCP
Baseline Metrics: 7-day CloudWatch metric history used to establish normal operating patterns

Prerequisites

Read-only AWS API access (describe/list/get) for ECS, CloudWatch, IAM, Application Auto Scaling, ELB, ECR, EC2 APIs — via AWS CLI, an AWS SDK, or an AWS API MCP
AWS Knowledge MCP access (search_documentation, read_documentation, recommend, list_regions, get_regional_availability)
AWS account ID and region
CloudWatch metrics access (7-day minimum for baseline)
ECS service ARN — format: arn:aws*:ecs:::service//

Skill Files

references/checks.md — Checks index: pillar→file map, check-ID ranges, counts, and the access-limitation / minimum-baseline rules. Read this FIRST.
references/pillars/resiliency.md — Resiliency & HA checks (REL1-REL14). Read only when running the Resiliency pillar.
references/pillars/observability.md — Observability checks (OBS1-OBS9). Read only when running the Observability pillar.
references/pillars/security.md — Security checks (SEC1-SEC20). Read only when running the Security pillar.
references/pillars/operations.md — Operations checks (OPS1-OPS9). Read only when running the Operations pillar.
references/pillars/performance.md — Performance checks (PERF1-PERF11). Read only when running the Performance pillar.
references/pillars/additional-analysis.md — Additional Analysis checks (ADD1-ADD7). Read only when running the Additional pillar.
references/alarm-thresholds.md — Recommended CloudWatch alarm thresholds for IDR onboarding.
references/common-checks-coverage.md — Crosswalk proving the review covers the shared review-common baseline (tagging, encryption, IAM least-privilege, alarms, logging, cost) via existing ECS check IDs. Read for any full review / CWR.
references/report-format.md — Required report/artifact structure, severity model, finding-block format, and the coverage gate. Read before generating the report.

Read the full file on GitHub · 247 lines

Files

What ships with it

17 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.

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.

21d ago First seen · 247 lines · 134 tokens per session scan A e3f269a2f8a5

Subscribe to this mod's changes

ecs-operation-review is a skill published in the GitHub repository aws/tools-for-devops-agent (107 stars, last pushed today), licensed Apache-2.0. It adds 134 tokens to every session and 4,505 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-09-25.

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