azure-blob-storage

azure-blob-storage is a skill for Claude Code, Codex from ashish7802/awesome-api-skills. It costs 0 tokens per session (522 once invoked), scanned A, original, MIT.

A guide to storing files in Azure Blob Storage, Microsoft's cloud service for unstructured data such as images, documents, and logs.

In plain words
What is it for?
Use it to upload, download, or continuously append files in Azure, including large uploads that benefit from splitting data into chunks.
Why use it?
It explains how to grant temporary access, choose the appropriate blob type, recover from temporary failures, and authenticate without exposing account keys.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to upload, download, or continuously append files in Azure, including large uploads that benefit from splitting data into chunks.

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Install with agentmods
npx agentmods add skills/ashish7802/awesome-api-skills/azure-blob-storage
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 ashish7802/awesome-api-skills --skill azure-blob-storage
Clone the repo
git clone --depth 1 https://github.com/ashish7802/awesome-api-skills

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 azure-blob-storage

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/azure-blob-storage/github.svg)](https://agentmods.dev/skills/ashish7802/awesome-api-skills/azure-blob-storage)
Your own site
<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/azure-blob-storage"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/azure-blob-storage/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-blob-storage

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashish7802/awesome-api-skills/azure-blob-storage"><img src="https://agentmods.dev/badge/skills/ashish7802/awesome-api-skills/azure-blob-storage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 522 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00000 $0.00522
Opus 5 $0.00000 $0.00261
Sonnet 5 $0.00000 $0.00104
Haiku 4.5 $0.00000 $0.00052

Measured 11d ago against content hash 84da62642b18, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

azure-blob-storage 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 11d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (examples/basic.py, examples/error-handling.ts, examples/upload.ts, …), 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.

skills/azure-blob-storage/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Azure Blob Storage API Skill

Quick Start

Azure Blob Storage handles massive amounts of unstructured data. The @azure/storage-blob SDK provides powerful abstractions for Block, Append, and Page blobs.

npm install @azure/storage-blob

Common Workflows

SAS (Shared Access Signature) Tokens

Generate a User Delegation SAS Token to grant temporary, tightly-scoped access to a specific blob without exposing the account key.

Production Patterns

Block Blobs vs Append Blobs

Use Block Blobs for standard files (images, documents). Use Append Blobs explicitly for log files where data is continuously written to the end of the blob.

Error Recovery

The SDK automatically handles transient failures using built-in retry policies (exponential backoff). Catch RestError to handle fatal authorization or missing resource failures.

Security Notes

Prioritize Azure AD (Entra ID) authentication via DefaultAzureCredential over using connection strings containing the Account Key.

Performance Considerations

For high-throughput uploads, tune the maxSingleShotSize and blockSize parameters in the uploadFile method to parallelize chunk uploads efficiently across multiple threads.

Testing Guidance

Use Azurite, the official local emulator for Azure Storage, to run integration tests entirely locally without an Azure subscription.

Troubleshooting

If CORS errors occur when using SAS URLs in the browser, ensure CORS rules are explicitly defined on the Storage Account setting AllowedOrigins and AllowedMethods (PUT).

References

  • [AWS S3](/skills/aws s3)
  • [Google Cloud Storage](/skills/google cloud storage)

Why use this skill

Use this when your agent works with azure-blob-storage — structured patterns beat pasted docs and prevent common hallucinations.

AI pitfalls

  • Using outdated SDK or API versions from training data
  • Inventing environment variable names
  • Omitting error handling and retry logic

Read the full file on GitHub · 59 lines

Files

What ships with it

7 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. 11d ago First seen · 59 lines · 0 tokens per session scan A 84da62642b18

Subscribe to this mod's changes

azure-blob-storage is a skill published in the GitHub repository ashish7802/awesome-api-skills (13 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 522 tokens. 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 2026-08-30.