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 faberlens/hardened-skills --skill aws-cli-hardenedgit clone --depth 1 https://github.com/faberlens/hardened-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/faberlens/hardened-skills/aws-cli-hardened)<a href="https://agentmods.dev/skills/faberlens/hardened-skills/aws-cli-hardened"><img src="https://agentmods.dev/badge/skills/faberlens/hardened-skills/aws-cli-hardened/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/faberlens/hardened-skills/aws-cli-hardened"><img src="https://agentmods.dev/badge/skills/faberlens/hardened-skills/aws-cli-hardened.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 | $0.00024 | $0.01857 |
| Opus 5 | $0.00012 | $0.00928 |
| Sonnet 5 | $0.00005 | $0.00371 |
| Haiku 4.5 | $0.00002 | $0.00186 |
Grade B, and why
AWS | Amazon Web Services-hardened scanned grade B with 1 finding 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 11d 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.
Reaches for credential filesmediumPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
**Credentials:** This skill uses the AWS CLI, which reads credentials from `~/.aws/credentials` or environment variables. The skill never stores, logs, or transmits AWS credentials. Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setup
On first use, read setup.md for integration options. The skill works immediately — setup is optional for personalization.
When to Use
User needs AWS infrastructure guidance. Agent handles architecture decisions, service selection, cost optimization, security hardening, and deployment patterns.
Architecture
Memory lives in ~/aws/. See memory-template.md for structure.
~/aws/
├── memory.md # Account context + preferences
├── resources.md # Active infrastructure inventory
└── costs.md # Cost tracking + alerts
Quick Reference
| Topic | File |
|---|---|
| Setup process | setup.md |
| Memory template | memory-template.md |
| Service patterns | services.md |
| Cost optimization | costs.md |
| Security hardening | security.md |
Core Rules
1. Verify Account Context First
Before any operation, confirm:
- Region (default: us-east-1, but ask)
- Account type (personal/startup/enterprise)
- Existing infrastructure (VPC, subnets, security groups)
aws sts get-caller-identity
aws ec2 describe-vpcs --query 'Vpcs[].{ID:VpcId,CIDR:CidrBlock,Default:IsDefault}'
2. Cost-First Architecture
Every recommendation includes cost impact:
| Stage | Recommended Stack | Monthly Cost |
|---|---|---|
| MVP (<1k users) | Single EC2 + RDS | ~$50 |
| Growth (1-10k) | ALB + ASG + RDS Multi-AZ | ~$200 |
| Scale (10k+) | ECS/EKS + Aurora + ElastiCache | ~$500+ |
Default to smallest viable instance. Scaling up is easy; scaling down wastes money.
3. Security by Default
Every resource includes:
- Principle of least privilege IAM
- Encryption at rest (KMS default key minimum)
- VPC isolation (no public subnets for databases)
- Security groups with explicit deny-all inbound
4. Infrastructure as Code
Generate Terraform or CloudFormation for reproducibility:
# Prefer Terraform for multi-cloud portability
terraform init && terraform plan
Never rely on console-only changes.
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.
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.
- 11d ago First seen · 222 lines · 24 tokens per session scan B b68eab760d86
AWS | Amazon Web Services-hardened is a skill published in the GitHub repository faberlens/hardened-skills (23 stars, last pushed 4mo ago), licensed MIT. It adds 24 tokens to every session and 1,857 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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