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export-download-debugging

Skill

Diagnose and fix browser, preview, or Electron export/download failures, especially image export issues involving Save As, Blob/Data URLs, the File System Access API, createWritable failures, and 0 KB files.

0Debugging

Install

git clone https://github.com/nexu-io/open-design.git ~/.claude/skills/export-download-debugging

What is export-download-debugging?

Diagnose and fix browser, preview, or Electron export/download failures, especially image export issues involving Save As, Blob/Data URLs, the File System Access API, createWritable failures, and 0 KB files.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~52 tokens of context used while enabled, before you invoke anything

Documentation

README · ~2 min read

Export Download Debugging

Use this when an export or download appears to run but produces an empty, missing, or unusable file. It is tuned for browser previews, iframe capture, and Electron shells.

Core rule

Separate capture from save. Prove the export payload has non-zero bytes before debugging the destination path. A 0 KB file often means the native picker or host created the target file, then the write failed or was blocked.

Evidence

  • Record the payload type, MIME type, byte length, object URL or data URL path,

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