analyzing-cloud-storage-access-patterns

analyzing-cloud-storage-access-patterns is a skill for Claude Code, Codex from Youngmaidainon/Agent-Level-Up. It costs 86 tokens per session (616 once invoked), scanned A, a copy of analyzing-cloud-storage-access-patterns, MIT.

A procedure for examining access logs from Amazon S3, Google Cloud Storage, and Azure Blob Storage, which are services for storing files in the cloud, to find unusual usage patterns.

In plain words
What is it for?
It is for detecting after-hours access, bulk downloads, new source addresses, and sudden spikes in file-listing or file-reading requests.
Why use it?
It helps distinguish normal activity from possible data theft or reconnaissance by comparing requests with user, time, object-count, and source-IP baselines.

Skill for Claude CodeCodex

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/youngmaidainon/agent-level-up/analyzing-cloud-storage-access-patterns
Any agent
npx skills add Youngmaidainon/Agent-Level-Up --skill analyzing-cloud-storage-access-patterns
Clone the repo
git clone --depth 1 https://github.com/Youngmaidainon/Agent-Level-Up

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 analyzing-cloud-storage-access-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/analyzing-cloud-storage-access-patterns.svg)](https://agentmods.dev/skills/youngmaidainon/agent-level-up/analyzing-cloud-storage-access-patterns)
Your own site
<a href="https://agentmods.dev/skills/youngmaidainon/agent-level-up/analyzing-cloud-storage-access-patterns"><img src="https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/analyzing-cloud-storage-access-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00086 $0.00616
Opus 5 $0.00043 $0.00308
Sonnet 5 $0.00017 $0.00123
Haiku 4.5 $0.00009 $0.00062

Measured 5d ago against content hash 1ec405b4ae9d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

analyzing-cloud-storage-access-patterns 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/agent.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

100% identical to analyzing-cloud-storage-access-patterns — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

cyber-security/ctf/analyzing-cloud-storage-access-patterns/SKILL.md · 78 lines

What it actually says

Analyzing Cloud Storage Access Patterns

When to Use

  • When investigating security incidents that require analyzing cloud storage access patterns
  • When building detection rules or threat hunting queries for this domain
  • When SOC analysts need structured procedures for this analysis type
  • When validating security monitoring coverage for related attack techniques

Prerequisites

  • Familiarity with cloud security concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Instructions

  1. Install dependencies: pip install boto3 requests
  2. Query CloudTrail for S3 Data Events using AWS CLI or boto3.
  3. Build access baselines: hourly request volume, per-user object counts, source IP history.
  4. Detect anomalies:
    • After-hours access (outside 8am-6pm local time)
    • Bulk downloads: >100 GetObject calls from single principal in 1 hour
    • New source IPs not seen in the prior 30 days
    • ListBucket enumeration spikes (reconnaissance indicator)
  5. Generate prioritized findings report.
python scripts/agent.py --bucket my-sensitive-data --hours-back 24 --output s3_access_report.json

Examples

CloudTrail S3 Data Event

{"eventName": "GetObject", "requestParameters": {"bucketName": "sensitive-data", "key": "financials/q4.xlsx"},
 "sourceIPAddress": "203.0.113.50", "userIdentity": {"arn": "arn:aws:iam::123456789012:user/analyst"}}
Files

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.

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 · 78 lines · 86 tokens per session scan A 1ec405b4ae9d

Subscribe to this mod's changes

analyzing-cloud-storage-access-patterns is a skill published in the GitHub repository Youngmaidainon/Agent-Level-Up (3 stars, last pushed 11d ago), licensed MIT. It adds 86 tokens to every session and 616 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to analyzing-cloud-storage-access-patterns, differing in 0 lines, and is treated as a copy.

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