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 agentmods add skills/cookiemonsterdev/agents-skills/aws-s3-docsnpx skills add cookieMonsterDev/agents-skills --skill aws-s3-docsgit clone --depth 1 https://github.com/cookieMonsterDev/agents-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/cookiemonsterdev/agents-skills/aws-s3-docs)<a href="https://agentmods.dev/skills/cookiemonsterdev/agents-skills/aws-s3-docs"><img src="https://agentmods.dev/badge/skills/cookiemonsterdev/agents-skills/aws-s3-docs.svg" alt="Measured on agentmods" 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 | $0.00096 | $0.01354 |
| Opus 5 | $0.00048 | $0.00677 |
| Sonnet 5 | $0.00019 | $0.00271 |
| Haiku 4.5 | $0.00010 | $0.00135 |
Grade A, and why
aws-s3-docs 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 6d 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 — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Amazon S3 questions are easy to answer from stale memory or pre–Block Public Access defaults. Use this skill to ground answers in the official Amazon S3 documentation and return the closest authoritative page instead of generic object-storage advice.
When to Use
Use this skill when the request is about:
- S3 concepts: buckets, objects, keys, prefixes, and regions
- Creating buckets, uploading objects, and object metadata
- Storage classes, intelligent tiering, and lifecycle rules
- Encryption at rest and in transit (SSE-S3, SSE-KMS, SSE-C, DSSE-KMS)
- Access control: bucket policies, ACLs, IAM policies, and Block Public Access
- Presigned URLs, public access, and cross-account access patterns
- Versioning, MFA delete, and object locking (WORM)
- Replication (same-region and cross-region), batch operations, and inventory
- Event notifications, EventBridge, and S3 Object Lambda
- Static website hosting, CORS, and request routing
- Transfer Acceleration, multipart upload, and performance tuning
- S3 Glacier, Glacier Flexible Retrieval, and restore workflows
- S3 on Outposts, directory buckets, and Mountpoint for Amazon S3
- Troubleshooting access denied, 403, signature errors, and throttling
Do not use this skill for:
- AWS CLI install, profiles, or global CLI options. Use
aws-cli-docsinstead. - IAM policy language fundamentals unrelated to S3 resources. Use
aws-iam-docsfor general IAM concepts. - EKS/ECS container image storage in ECR. Use service-specific docs unless the question is about S3 as artifact or log storage.
- Third-party S3-compatible tools (MinIO, etc.) unless the question maps to documented S3 API behavior.
Workflow
1. Classify the request
Decide which bucket the question belongs to before searching:
- Getting started and core concepts
- Buckets and object operations
- Storage classes and lifecycle
- Security, encryption, and access control
- Replication, versioning, and data protection
- Event notifications and integrations
- Performance, transfer, and multipart uploads
- Static websites, CORS, and routing
- Glacier and archival workflows
- Advanced features (Object Lambda, Access Points, Batch Operations)
- Troubleshooting and error codes
What ships with it
2 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.
- 6d ago First seen · 113 lines · 96 tokens per session scan A b0ea021ce62b
aws-s3-docs is a skill published in the GitHub repository cookieMonsterDev/agents-skills (4 stars, last pushed 16d ago), licensed MIT. It adds 96 tokens to every session and 1,354 once invoked, about $0.0005 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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