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cdn-upload

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更新时间2026年6月14日 20:01

Upload local files (figures, images, any asset) to the user's public CDN at cdn.hails.info (Cloudflare R2) and get back public https URLs. Use when an image/file needs a public URL — e.g. embedding a figure inline in a PRIVATE-repo GitHub PR/issue description (private-repo raw/blob links do NOT render; a public cdn.hails.info URL does, via GitHub's camo proxy), sharing a screenshot, or any "host this so it has a URL" need. Backed by the kb project's R2 scheme.

安装

用 Codex 或 Claude 帮你安装复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。

在 Manus 中运行

来源

DJRHails

DJRHails/dotfiles

打开 GitHub 仓库查看创作者相关仓库

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在 Manus 中运行

cdn-upload — public URLs for local files via cdn.hails.info

cdn.hails.info is a public Cloudflare R2 bucket (r2:cdn-hails-info). Upload a file and it is reachable at https://cdn.hails.info/<key>. Because the URL is public, GitHub renders it inline in markdown even for private repos (where committed/raw.githubusercontent.com image links 404 or are blocked by the camo proxy).

Use it

~/.agents/skills/cdn-upload/scripts/cdn-upload path/to/figure.png [more.png ...]
# prints one https://cdn.hails.info/img/<sha256[:32]>.png per file on stdout

The script (mirrors DJRHails/kb bin/r2_upload.py):

Content-addressed: key is img/<sha256[:32]><ext>, so identical bytes collapse to one object and re-uploads are idempotent (same URL every time).
Immutable cache header on upload (Cache-Control: public, max-age=31536000, immutable).
Routing: a local rclone r2: remote if configured; else, inside a gantry worker (the gantry CLI is on PATH and $GANTRY_API_KEY is injected), it runs gantry attach — which POSTs to gantry's /agent/attachments, since gantry holds the R2 creds the sandboxed worker lacks, and returns the same cdn.hails.info/img/<sha> URL (images only); else it scps to trifle (the user's Mac, where rclone + the r2: remote live) and uploads from there. So it works from a maintainer host, a gantry worker, or any tailnet host.

Embedding in a GitHub PR/issue (the common case)

url=$(.../scripts/cdn-upload figures/foo.png)
Put ![caption]($url) in the PR/issue body.
Update an existing PR body with the REST API (avoids a gh pr edit bug that fails on Projects-classic GraphQL): gh api --method PATCH repos/<owner>/<repo>/pulls/<n> -F body=@body.md.

Notes

Verify a URL is live: curl -s -o /dev/null -w '%{http_code} %{content_type}' "$url" → 200 image/png.
The full kb flow (bin/r2_upload.py <dir>) also rewrites markdown image refs in-place and keeps a content registry; this skill is just the upload primitive for one-off files.

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name

cdn-upload

description

cdn-upload — public URLs for local files via cdn.hails.info

Use it

~/.agents/skills/cdn-upload/scripts/cdn-upload path/to/figure.png [more.png ...]
# prints one https://cdn.hails.info/img/<sha256[:32]>.png per file on stdout

The script (mirrors DJRHails/kb bin/r2_upload.py):

Content-addressed: key is img/<sha256[:32]><ext>, so identical bytes collapse to one object and re-uploads are idempotent (same URL every time).
Immutable cache header on upload (Cache-Control: public, max-age=31536000, immutable).
Routing: a local rclone r2: remote if configured; else, inside a gantry worker (the gantry CLI is on PATH and $GANTRY_API_KEY is injected), it runs gantry attach — which POSTs to gantry's /agent/attachments, since gantry holds the R2 creds the sandboxed worker lacks, and returns the same cdn.hails.info/img/<sha> URL (images only); else it scps to trifle (the user's Mac, where rclone + the r2: remote live) and uploads from there. So it works from a maintainer host, a gantry worker, or any tailnet host.

Embedding in a GitHub PR/issue (the common case)

url=$(.../scripts/cdn-upload figures/foo.png)
Put ![caption]($url) in the PR/issue body.
Update an existing PR body with the REST API (avoids a gh pr edit bug that fails on Projects-classic GraphQL): gh api --method PATCH repos/<owner>/<repo>/pulls/<n> -F body=@body.md.

Notes

Verify a URL is live: curl -s -o /dev/null -w '%{http_code} %{content_type}' "$url" → 200 image/png.
The full kb flow (bin/r2_upload.py <dir>) also rewrites markdown image refs in-place and keeps a content registry; this skill is just the upload primitive for one-off files.