medialibrary-development
Build and work with spatie/laravel-medialibrary features including associating files with Eloquent models, defining media collections and conversions, generating responsive images, and retrieving media URLs and paths.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/spatie/laravel-medialibrary --skill medialibrary-development- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads medialibrary-development automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Media Library Development
Overview
Use spatie/laravel-medialibrary to associate files with Eloquent models. Supports image/video conversions, responsive images, multiple collections, and various storage disks.
When to Activate
- Activate when working with file uploads, media attachments, or image processing in Laravel.
- Activate when code references
HasMedia,InteractsWithMedia, theMediamodel, or media collections/conversions. - Activate when the user wants to add, retrieve, convert, or manage files attached to Eloquent models.
Scope
- In scope: media uploads, collections, conversions, responsive images, custom properties, file retrieval, path/URL generation.
- Out of scope: general file storage without Eloquent association, non-Laravel frameworks.
Workflow
- Identify the task (model setup, adding media, defining conversions, retrieving files, etc.).
- Read
references/medialibrary-guide.mdand focus on the relevant section. - Apply the patterns from the reference, keeping code minimal and Laravel-native.
Core Concepts
Model Setup
Every model that should have media must implement HasMedia and use the InteractsWithMedia trait:
use Spatie\MediaLibrary\HasMedia;
use Spatie\MediaLibrary\InteractsWithMedia;
class BlogPost extends Model implements HasMedia
{
use InteractsWithMedia;
}
Adding Media
$blogPost->addMedia($file)->toMediaCollection('images');
$blogPost->addMediaFromUrl($url)->toMediaCollection('images');
$blogPost->addMediaFromRequest('file')->toMediaCollection('images');
Defining Collections
public function registerMediaCollections(): void
{
$this->addMediaCollection('avatar')->singleFile();
$this->addMediaCollection('downloads')->useDisk('s3');
}
Defining Conversions
use Spatie\MediaLibrary\MediaCollections\Models\Media;
use Spatie\Image\Enums\Fit;
public function registerMediaConversions(?Media $media = null): void
{
$this->addMediaConversion('thumb')
->fit(Fit::Contain, 300, 300)
->nonQueued();
}
Retrieving Media
$url = $model->getFirstMediaUrl('images');
$thumbUrl = $model->getFirstMediaUrl('images', 'thumb');
$allMedia = $model->getMedia('images');
Do and Don't
Do:
- Always implement the
HasMediainterface alongside theInteractsWithMediatrait. - Use
?Media $media = nullas the parameter forregisterMediaConversions(). - Call
->toMediaCollection()to finalize adding media. - Use
->nonQueued()for conversions that should run synchronously. - Use
->singleFile()on collections that should only hold one file. - Use
Spatie\Image\Enums\Fitenum values for fit methods.
Don't:
- Don't forget to run
php artisan vendor:publish --provider="Spatie\MediaLibrary\MediaLibraryServiceProvider" --tag="medialibrary-migrations"before migrating. - Don't use
env()for disk configuration; useconfig()or set it inconfig/media-library.php. - Don't call
addMedia()without callingtoMediaCollection()— the media won't be saved. - Don't reference conversion names that aren't registered in
registerMediaConversions().
References
references/medialibrary-guide.md
FAQ
What does the medialibrary-development skill do?
Build and work with spatie/laravel-medialibrary features including associating files with Eloquent models, defining media collections and conversions, generating responsive images, and retrieving media URLs and paths.
How do I install medialibrary-development?
Run npx skills add https://github.com/spatie/laravel-medialibrary --skill medialibrary-development in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/medialibrary-development/ (personal) or .claude/skills/medialibrary-development/ (project).
Which AI agents can use medialibrary-development?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is medialibrary-development safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains medialibrary-development?
It is published by spatie in spatie/laravel-medialibrary. It has 57 recorded installs.
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