file-upload-media-expert

file-upload-media-expert is a skill for Cursor from roedyrustam/vibes-plug. It costs 76 tokens per session (4,291 once invoked), scanned A, original, MIT.

A guide to building systems that accept, store, validate, transform, and deliver uploaded files such as images, videos, documents, and PDFs.

In plain words
What is it for?
Use it with S3, Cloudflare R2, or Supabase Storage to add uploads, drag-and-drop interfaces, image resizing, video transcoding, PDF generation, and CDN delivery.
Why use it?
It helps address secure uploads, large files, progress tracking, file validation, virus scanning, media processing, storage, and fast delivery through a CDN.

Skill for Cursor

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

Part of the vibes-plug plugin — 176 skills, 9 agents, 2 MCP servers shipped together

Good fit Use it with S3, Cloudflare R2, or Supabase Storage to add uploads, drag-and-drop interfaces, image resizing, video transcoding, PDF generation, and CDN delivery.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/roedyrustam/vibes-plug/file-upload-media-expert
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 roedyrustam/vibes-plug --skill file-upload-media-expert
Clone the repo
git clone --depth 1 https://github.com/roedyrustam/vibes-plug

Made for: Cursor.

Or install vibes-plug, the plugin that ships this one along with the rest of its 176 skills, 9 agents, 2 MCP servers.

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 file-upload-media-expert

README.md
[![agentmods](https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/file-upload-media-expert/github.svg)](https://agentmods.dev/skills/roedyrustam/vibes-plug/file-upload-media-expert)
Your own site
<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/file-upload-media-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/file-upload-media-expert/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 file-upload-media-expert

Your own site · 80×15
<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/file-upload-media-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/file-upload-media-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,291 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 $0.00076 $0.04291
Opus 5.5 $0.00030 $0.01716
Sonnet 5.5 $0.00015 $0.00858
Haiku 4.5 $0.00008 $0.00429

Measured 5d ago against content hash 29147543e5a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

file-upload-media-expert 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.

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.

.cursor/skills/file-upload-media-expert/SKILL.md · 429 lines

How it starts

The opening of the file, as written. The whole thing — 429 lines — stays where its author put it; the contents beside it link to each section on GitHub.

File Upload & Media Expert (2026 Edition)

English | Bahasa Indonesia


English

Orchestration & Integration

Connects and orchestrates with domain skills:

  • UI & Design System: senior-frontend, design-system-architect, ui-ux-pro-max, modern-web-guidance, modern-css-native-expert, and anti-slop for accessible drag-and-drop dropzones, file preview cards, progress rings, and WCAG 2.2 AA compliant upload states.
  • Visual Auditing: visual-ui-auditor for verifying 5-state interactive contracts (idle, dragover, uploading, success, error) and 1px crisp borders.
  • Cloud & Performance: cloud-hosting-expert, performance-web-vitals, and database-orm-expert for CDN delivery, responsive image variants, and atomic metadata storage.
  • Orchestration: brainstorming and zero-to-prod-orchestrator for end-to-end media pipeline delivery.

Description

Production-grade guide for building secure, performant file upload systems and media processing pipelines. Covers presigned URL upload patterns (S3, R2, Supabase Storage), multipart uploads with progress tracking, image optimization (Sharp, Cloudflare Images, Vercel OG), video transcoding (Mux, Cloudflare Stream), PDF generation, file validation & virus scanning, CDN configuration, and drag-and-drop UI components.

Trigger Conditions

Activate this skill when:

  • Implementing file upload functionality (images, documents, videos).
  • Setting up cloud storage (AWS S3, Cloudflare R2, Supabase Storage, UploadThing).
  • Building image processing pipelines (resize, crop, watermark, format conversion).
  • Implementing drag-and-drop file upload UI components.
  • Configuring CDN for static assets and media delivery.
  • Generating PDFs or processing documents server-side.
  • Building avatar/profile picture upload functionality.

Storage Provider Selection Guide

Provider Best For Key Strength Egress Cost
Cloudflare R2 Cost-sensitive, global Zero egress fees, S3-compatible $0
AWS S3 Enterprise, AWS ecosystem Most mature, rich feature set $0.09/GB
Supabase Storage Supabase-powered apps RLS integration, built-in transforms Included in plan
UploadThing Quick prototyping React components, zero config Included in plan
Vercel Blob Vercel-hosted apps Seamless Vercel integration Included in plan

Read the full file on GitHub · 429 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. 5d ago Changed · -11 lines · +76 tokens per session 29147543e5a1
  2. 6d ago Changed · +2 lines · -76 tokens per session 9668e95c0e86
  3. 9d ago Changed 059af7ff0bed
  4. 18d ago Changed b7046cfcdf30
  5. 23d ago Changed ce880410bc76
  6. 24d ago Changed 2b8fa7909e04
  7. 26d ago Changed · -6 lines · +63 tokens per session 29b079390d58
  8. 28d ago Changed · +6 lines · -63 tokens per session 147afdb7cadf
  9. 1mo ago Changed 239e207128f2
  10. 1mo ago First seen · 438 lines · 76 tokens per session scan A 41e1cc840435

Subscribe to this mod's changes

file-upload-media-expert is a skill published in the GitHub repository roedyrustam/vibes-plug (114 stars, last pushed today), licensed MIT. It adds 76 tokens to every session and 4,291 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.

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