azure-storage-and-databases

azure-storage-and-databases is a skill for Claude Code from jsgerman-oss/blackrim-nimbus-skills. It costs 72 tokens per session (2,906 once invoked), scanned A, original, MIT.

A guide for choosing and reviewing Azure storage and database services, such as file storage, relational databases, document stores, caches, and analytics systems. It considers how data is accessed, protected, backed up, and scaled.

In plain words
What is it for?
Choosing a database or storage type, designing Cosmos DB partitions, sizing services, and reviewing encryption, backups, retention, and replication.
Why use it?
It helps match a data service to the way an application uses its data and avoid unsuitable capacity, backup, or security choices.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the cloud-azure plugin — 6 skills, 1 command, 2 agents shipped together

Good fit Choosing a database or storage type, designing Cosmos DB partitions, sizing services, and reviewing encryption, backups, retention, and replication.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases
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 jsgerman-oss/blackrim-nimbus-skills --skill azure-storage-and-databases
Clone the repo
git clone --depth 1 https://github.com/jsgerman-oss/blackrim-nimbus-skills

Made for: Claude Code.

Or install cloud-azure, the plugin that ships this one along with the rest of its 6 skills, 1 command, 2 agents.

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 azure-storage-and-databases

README.md
[![agentmods](https://agentmods.dev/badge/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases/github.svg)](https://agentmods.dev/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases)
Your own site
<a href="https://agentmods.dev/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases"><img src="https://agentmods.dev/badge/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases/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.

agentmods 80×15 button for azure-storage-and-databases

Your own site · 80×15
<a href="https://agentmods.dev/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases"><img src="https://agentmods.dev/badge/skills/jsgerman-oss/blackrim-nimbus-skills/azure-storage-and-databases.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,906 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.02906
Opus 5 $0.00036 $0.01453
Sonnet 5 $0.00014 $0.00581
Haiku 4.5 $0.00007 $0.00291

Measured 12d ago against content hash 3a1a67601bbd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

azure-storage-and-databases 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 12d 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.

cloud-azure/skills/azure-storage-and-databases/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Azure Storage and Databases

When to use

  • Choosing between relational, document, key-value, analytical, and object storage on Azure.
  • Modeling Cosmos DB partition keys and indexing policies from access patterns.
  • Sizing an Azure SQL DB or Cosmos DB tier and selecting a failover strategy.
  • Hardening data-at-rest encryption, backups, and point-in-time restore.
  • Auditing data egress, lifecycle policies, retention windows, and geo-replication.

Decision tree

Need Service
Object storage for blobs, backups, data lake, static assets Azure Blob Storage
Hierarchical namespace for big-data analytics pipelines Azure Data Lake Storage Gen2 (Blob + HNS enabled)
Shared POSIX / SMB filesystem across compute Azure Files (Premium for IOPS-sensitive)
ACID, relational, joins, OLTP Azure SQL Database (Hyperscale for > 4 TB or unpredictable IOPS; serverless for dev/test)
Single-digit-ms NoSQL with known partition key Cosmos DB NoSQL API
MongoDB-compatible document store Cosmos DB for MongoDB (vCore mode for larger workloads)
Cassandra-compatible wide-column Cosmos DB for Apache Cassandra
Open-source PostgreSQL OLTP Azure Database for PostgreSQL Flexible Server
Open-source MySQL OLTP Azure Database for MySQL Flexible Server
Sub-ms cache, sessions, leaderboards, queues Azure Cache for Redis Enterprise
Petabyte analytics, data warehouse Azure Synapse Analytics (dedicated SQL pool or serverless)

Blob Storage defaults

  • Access tier: Hot for frequently accessed data, Cool for > 30-day-old infrequent data, Cold for > 90-day, Archive for > 180-day compliance retention. Use lifecycle management rules to automate transitions.
  • Encryption: Microsoft-managed keys by default; migrate to customer-managed keys (CMK) stored in Key Vault for any data subject to access-audit or revocation requirements.
  • Public access: disable allowBlobPublicAccess at the storage account level. Serve static content via Azure Front Door or CDN with an origin pointing to the private endpoint — not a public blob container.
  • Versioning: enable for any bucket holding state, source artifacts, configuration, or backups.
  • Soft delete: blob-level soft delete (7-day minimum) plus container-level soft delete for accidental deletion recovery.
  • Shared key: set allowSharedKeyAccess: false; access via Managed Identity + Azure RBAC (Storage Blob Data Contributor / Reader roles scoped to the container, not the account).
  • ADLS Gen2: enable hierarchical namespace (isHnsEnabled: true) at creation — it cannot be enabled post-creation. Use ACLs at the directory level for fine-grained data lake access control; RBAC at the account level for admin operations.

Read the full file on GitHub · 148 lines

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. 12d ago First seen · 148 lines · 72 tokens per session scan A 3a1a67601bbd

Subscribe to this mod's changes

azure-storage-and-databases is a skill published in the GitHub repository jsgerman-oss/blackrim-nimbus-skills (8 stars, last pushed 27d ago), licensed MIT. It adds 72 tokens to every session and 2,906 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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