Uploading Files

Claude Code on the Web has no file-upload widget and no shared mount. Whenever the user needs to get a file (image, PDF, CSV, doc, archive, anything) into the session, route them through a temporary GitHub branch on the working repo's origin remote.

When to use

Trigger this skill when:

• The user asks to upload, attach, share, or send a file
• A task clearly needs a file the user has locally that isn't in the repo (e.g. "summarize this PDF", "the spreadsheet I exported", "the screenshot from earlier")
• You're about to ask the user to paste a long binary or large text blob — offer upload instead

Don't trigger when the file is already in the repo, on a public URL you can fetch, or short enough to paste inline.

Workflow

The script lives at /mnt/skills/user/uploading-files/scripts/upload.py once installed. It must be run from inside the working git repo (it uses origin and cwd).

Step 1 — Create the upload branch