file-upload-fullstack
File Upload Fullstack
Covers the non-obvious parts of a complete upload pipeline: why you never proxy file bytes through your own server, the two-phase commit pattern for upload confirmation, progress tracking without a server round-trip, and the CDN delivery gotchas that break cached files after replacement. Skips basic form handling — assumes a storage bucket exists.
Discovery
Before writing anything, answer:
- Storage provider: AWS S3, GCS, Cloudflare R2, Azure Blob? (presigned URL API differs per provider)
- File types and size limits: Images only, or arbitrary files? Max size? (determines chunking strategy)
- Access control: Public files (CDN-served directly) or private files (signed CDN URLs per request)?
- Confirmation pattern: Does the backend need to know a file was uploaded? (almost always yes — for DB records, processing jobs, virus scanning)
- Replacement behavior: Can files be overwritten, or does each upload get a unique key?
Core Patterns
More from blunotech-dev/agents
anti-purple-ui
Enforce a strict monochrome UI with a single high-contrast accent color, removing generic tech gradients and “AI-style” palettes. Use when the user wants minimal, anti-AI, or non-generic aesthetics, or says the UI looks too techy or generic.
9harmonize-whitespace
Align all spacing (padding, margins, gaps) to a consistent 4pt/8pt grid. Use when spacing feels off, inconsistent, cramped, or unbalanced, or when the user asks for a spacing scale or alignment fix.
9typographic-hierarchy
Improve typography by adjusting font sizes, weights, spacing, and contrast to create clear visual hierarchy and readability. Use when text feels flat, unstructured, or when the user asks to refine headings, type scale, or overall readability.
7micro-interaction-adder
Add polished CSS micro-interactions like hover effects, transitions, and feedback states to improve UI feel. Use when the user asks for animations, better UX, or when the interface feels static, plain, or unresponsive.
4consistent-border-radius
Normalizes rounded corners across a file so buttons, inputs, cards, modals, badges, and all UI elements share the exact same curvature. Use this skill whenever the user mentions inconsistent border radii, wants to unify rounded corners, asks to make UI elements look more cohesive, or says things like "make the corners match", "fix the rounding", "unify border radius", "standardize my rounded corners", or "buttons and cards don't match". Also trigger when the user pastes a CSS/HTML/JSX/TSX file and asks for a design consistency pass, border radius is one of the first things to normalize.
4component-split
Analyze a component and determine when and how to split it based on size, responsibility, and reuse signals, producing a refactored structure with clear boundaries. Use when users share large, mixed-concern, or hard-to-test components, or ask about splitting, refactoring, or improving component architecture.
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