django-storages-s3

Use when configuring Django to store static and media files on AWS S3 with django-storages. Invoke when working with the STORAGES setting, S3 buckets, presigned URLs, CloudFront, or boto3-backed file storage in settings.py. Configures the Django 4.2+ STORAGES dict, public/private custom backends, presigned GET/POST URLs, IAM policies, and S3 mocking for tests. Trigger terms: django-storages, S3, boto3, S3Boto3Storage, STORAGES, presigned URL, CloudFront, media files, collectstatic, AWS_STORAGE_BUCKET_NAME.

Quality

93%

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Securityby

Passed

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Quality

Content

86%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-structured, actionable skill body that splits detail appropriately into verified reference files and provides copy-paste code plus concrete audit commands. The main weaknesses are minor token redundancy and an implicit rather than explicit verification feedback loop.

Suggestions

Remove or shrink the "Knowledge Reference" keyword list — it duplicates trigger terms already in the description and body, saving tokens without losing information.

Make the Core Workflow's "Verify & test" step an explicit feedback loop, e.g. "If collectstatic fails or uploads don't appear in S3, check credentials/region and re-run" to strengthen error-recovery guidance.

Dimension	Reasoning	Score
Conciseness	Mostly lean and constraint-oriented without explaining concepts Claude already knows (no padding about what S3 or boto3 is), but the "Knowledge Reference" keyword dump duplicates trigger terms already present in the description and body, so a few tokens could be trimmed.	4 / 5
Actionability	Fully executable, copy-paste-ready code in the Minimal Working Example (settings.py STORAGES dict + models.py) plus concrete grep commands in the Auditing section (e.g. `grep -rn "AWS_SECRET_ACCESS_KEY\\|aws_secret" settings/`) cover the common cases.	5 / 5
Workflow Clarity	A clear five-step Core Workflow with a "Verify & test" checkpoint (run collectstatic, confirm uploads land in S3) plus an auditing checklist, but the error-recovery feedback loop is implicit rather than an explicit "if validation fails, fix and re-validate" step.	4 / 5
Progressive Disclosure	The body is a concise overview with a well-signaled Reference Guide table whose four referenced paths (configuration.md, custom-backends.md, presigned-urls.md, testing-storages.md) all exist as real one-level-deep files, making navigation easy.	5 / 5
	Total	18 / 20 Passed

Description

100%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, specific description that uses third-person voice and explicitly states both capabilities and invocation triggers. It lists concrete actions and a comprehensive set of natural trigger terms, leaving little ambiguity about when to invoke it.

Dimension	Reasoning	Score
Specificity	Lists multiple specific concrete actions — "Configures the Django 4.2+ STORAGES dict, public/private custom backends, presigned GET/POST URLs, IAM policies, and S3 mocking for tests" — giving comprehensive coverage of the skill's capabilities.	5 / 5
Completeness	Explicitly answers both what ("Configures the Django 4.2+ STORAGES dict...") and when ("Use when configuring Django...", "Invoke when working with the STORAGES setting, S3 buckets, presigned URLs, CloudFront...") with concrete trigger phrases.	5 / 5
Trigger Term Quality	Comprehensive coverage of natural terms and synonyms via the explicit trigger-terms list: "django-storages, S3, boto3, S3Boto3Storage, STORAGES, presigned URL, CloudFront, media files, collectstatic, AWS_STORAGE_BUCKET_NAME" — phrases a user would actually say.	5 / 5
Distinctiveness Conflict Risk	Clear niche — django-storages + S3 with distinct technical triggers like "S3Boto3Storage", "STORAGES", "generate_presigned_post" — that minimizes conflict risk with other Django or AWS skills.	5 / 5
	Total	20 / 20 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: Jeffallan/claude-skills
Path: skills/django-storages-s3/SKILL.md
Commit: 882ef55

Reviewed: ~11 hours ago

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