acquire-codebase-knowl…
Use this skill when the user explicitly asks to map, document, or onboard into an existing codebase. Trigger for prompts like…
@githubInstall SkillAI & Agents
Skill
/gh-attach
Uploads a local file (screenshot, image, PDF, zip, video) to GitHub user-attachments, downloads GitHub user-attachments, and embeds local files in a PR, issue, or comment. Use when asked to "attach a screenshot to the PR", "add an image to the issue", "embed before/after
Claude Code
$ npx -y skills add github/awesome-copilot --skill gh-attach --agent claude-code
Codex
$ npx skills add github/awesome-copilot --skill gh-attach -a codex -y
Cursor
$ npx skills add github/awesome-copilot --skill gh-attach -a cursor -y
Gemini CLI
$ npx skills add github/awesome-copilot --skill gh-attach -a gemini-cli -y
GitHub Copilot
$ npx skills add github/awesome-copilot --skill gh-attach -a github-copilot -y
OpenCode
$ npx skills add github/awesome-copilot --skill gh-attach -a opencode -y
Windsurf
$ npx skills add github/awesome-copilot --skill gh-attach -a windsurf -y
SKILL.md
gh-attach.SKILL.mdname: gh-attach
description: 'Uploads a local file (screenshot, image, PDF, zip, video) to GitHub user-attachments, downloads GitHub user-attachments, and embeds local files in a PR, issue, or comment. Use when asked to "attach a screenshot to the PR", "add an image to the issue", "embed before/after screenshots", "attach this file", or "download this GitHub attachment". Powered by `gh-attach`.'
gh-attach
`gh attach` uploads a file to GitHub's internal user-attachments endpoint (no public API exists) and prints the URL, which GitHub auto-renders (image/video/file) wherever it's pasted. The URL inherits the repo's visibility, so private-repo uploads stay private.
Prerequisites
gh extension list | grep -q 'gh attach' || gh extension install sudosubin/gh-attach
Uploads use a GitHub browser session cookie, not the `gh` token. By default, `gh` must be authenticated so `gh-attach` can select the matching browser account. If the wrong account is selected, add `--browser <name> --profile <name>`. For headless use, set `GH_ATTACH_SESSION_TOKEN` to the bare `user_session` cookie value. Treat it as a full account credential.
Steps
**1. Upload**: Use an absolute quoted path. `-R` is optional inside a repository. For GHES, use `-R host/owner/repo`. The command prints the URL on one line. GitHub auto-renders it (image/video/file), so use it as-is:
URL=$(gh attach "$FILE" -R <owner>/<repo>)
**2. Embed** (always `--body-file -`, e.g. `gh pr comment/edit`, `gh issue comment/edit`):
printf '## Screenshots\n\n%s\n' "$URL" | gh pr comment <pr> -R <owner>/<repo> --body-file -
**3. Download**: Specify the destination explicitly. Private attachments use the active `gh` token, with browser cookies as an authorization fallback:
gh attach download "$URL" -O "$FILE"
Notes
- Private repo: URL renders only for authorized viewers. An anonymous fetch is expected to return 404 or 403.
- Sizing: embed `<img width="800" src="$URL">` instead of the bare URL.
- GitHub Cloud and GHES decide which file extensions and content types they accept.
Read more
name: gh-attach description: 'Uploads a local file (screenshot, image, PDF, zip, video) to GitHub user-attachments, downloads GitHub user-attachments, and embeds local files in a PR, issue, or comment. Use when asked to "attach a screenshot to the PR", "add an image to the issue", "embed before/after screenshots", "attach this file", or "download this GitHub attachment". Powered by `gh-attach`.'
gh-attach
`gh attach` uploads a file to GitHub's internal user-attachments endpoint (no public API exists) and prints the URL, which GitHub auto-renders (image/video/file) wherever it's pasted. The URL inherits the repo's visibility, so private-repo uploads stay private.
Prerequisites
gh extension list | grep -q 'gh attach' || gh extension install sudosubin/gh-attach
Uploads use a GitHub browser session cookie, not the `gh` token. By default, `gh` must be authenticated so `gh-attach` can select the matching browser account. If the wrong account is selected, add `--browser <name> --profile <name>`. For headless use, set `GH_ATTACH_SESSION_TOKEN` to the bare `user_session` cookie value. Treat it as a full account credential.
Steps
**1. Upload**: Use an absolute quoted path. `-R` is optional inside a repository. For GHES, use `-R host/owner/repo`. The command prints the URL on one line. GitHub auto-renders it (image/video/file), so use it as-is:
URL=$(gh attach "$FILE" -R <owner>/<repo>)
**2. Embed** (always `--body-file -`, e.g. `gh pr comment/edit`, `gh issue comment/edit`):
printf '## Screenshots\n\n%s\n' "$URL" | gh pr comment <pr> -R <owner>/<repo> --body-file -
**3. Download**: Specify the destination explicitly. Private attachments use the active `gh` token, with browser cookies as an authorization fallback:
gh attach download "$URL" -O "$FILE"
Notes
- Private repo: URL renders only for authorized viewers. An anonymous fetch is expected to return 404 or 403.
- Sizing: embed `<img width="800" src="$URL">` instead of the bare URL.
- GitHub Cloud and GHES decide which file extensions and content types they accept.
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@shareai-labInstall SkillQuestions about gh-attach.
- Which coding agents can use gh-attach?
- gh-attach installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.