Part of Build n8n Workflows With Proven Patterns
Engineering Blueprint
Safety checkedHandle Binary Data and Files Correctly
Manage files, images, PDFs, and binary data in workflows without losing file contents or breaking vision input for AI agents.
What problem does this solve?
Teaches Claude that binary data lives in $binary (not $json), how to pass files between nodes without corruption, and the pre-staging pattern for sending files to AI agent tools, so workflows preserve file integrity and agents can access images without CDN/URL requirements.
How does it work?
When working with files, uploads, downloads, or AI vision, this skill activates and explains: file contents never go in $json; use $binary to keep them intact; merge operations that use "Merge Mode: Keep both, using only the nth fields" to preserve binary across JSON transforms; and for AI agents, pre-stage files to storage and pass keys/URLs instead of raw binary to the tool.
Included Skills
No skills in this group
What's required to run this?
Binary data handling is version-specific; n8n v1.x+ uses $binary consistently, but legacy v0.x workflows may use different patterns. CDN requirement applies to chat surfaces (Claude, UI) but not to backend processing (Code nodes can work with raw binary).
Key Features
$binary vs $json
File contents live in $binary; $json is for metadata only
Merge for Context
Keeping binary alive across JSON transforms with Merge node
Agent Tool Binary
Pre-stage files to storage; pass URLs to AI tools, not raw binary
CDN Requirement
Images must be URLs for display in chat surfaces; raw binary fails
About This Blueprint
- Industry
- Technology
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