Update .NET OS Packages
dotnet/core
Audits and updates os-packages.json files listing the Linux packages each .NET release needs per distro, then regenerates the Markdown from the JSON.
Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README.
Install Gh Image
The automated check flagged lines worth reading first. See the safety section below.
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sickn33/agentic-awesome-skills gh-image --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/gh-image .claude/skills/gh-image && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .claude/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-imageType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sickn33/agentic-awesome-skills gh-image --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/gh-image .agents/skills/gh-image && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .agents/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sickn33/agentic-awesome-skills gh-image --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/gh-image .cursor/skills/gh-image && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .cursor/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/sickn33/agentic-awesome-skills.git --path skills/gh-image--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sickn33/agentic-awesome-skills gh-image --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/gh-image .gemini/skills/gh-image && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .gemini/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install sickn33/agentic-awesome-skills gh-imageInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/gh-image .github/skills/gh-image && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .github/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill gh-image -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sickn33/agentic-awesome-skills gh-image --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/gh-image .opencode/skills/gh-image && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "gh-image" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/gh-image into .opencode/skills/gh-image/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gh-image", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
gh-image- GitHub stars
- 47k
- Used in
- 1 other repo
- Token cost
- ~1.2k tokens
- SKILL.md length
- 434 words
- Files
- 1
- Skills in repo
- 1,493
- Repo updated
- First seen
- Licence
- MIT
At a glance
Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README.
- Works in 4 steps: Verify prerequisites → Upload → Embed into the PR / issue / comment → …
- Asked to attach a screenshot to a PR
- SKILL.md covers Overview, When to Use This Skill, How It Works and Examples, plus 2 more sections
- Calls gh; reaches github.com; needs GH_SESSION_TOKEN
What it does
Gh Image is an agent skill from sickn33/agentic-awesome-skills. Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Technical documentation. It works with GitHub. The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.
When your agent uses it
- Asked to attach a screenshot to a PR
- Embed before/after images in a README
Example prompts
- “/gh-image”
Requirements
- A credential in GH_SESSION_TOKEN
Workflow steps
4 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 680176d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
gh
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
GH_SESSION_TOKEN
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Gh Image loads about 1.2k tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 434 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: warnings
The automated check found patterns that need a careful read before installing.
- WarningMentions a credentials file (SSH keys, cloud or package-manager tokens)SKILL.md:128
- **Windows + Chrome 127+** cannot read cookies (library limitation) — use another
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from sickn33/agentic-awesome-skills at commit 680176d, republished under its MIT licence (© sickn33). 434 words, ~1,156 tokens.
Download SKILL.mdSave it as
.claude/skills/gh-image/SKILL.md (or your agent's skills folder).- name
- gh-image
- description
- Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README.
- category
- developer-tools
- risk
- critical
- source
- community
- source_type
- community
- source_repo
- drogers0/gh-image
- date_added
- 2026-06-25
- author
- drogers0
- license
- MIT
- license_source
- https://github.com/drogers0/gh-image/blob/main/LICENSE
- tags
- github, images, screenshots, gh-extension, cli
Upload images to GitHub (gh-image)
GitHub has no public API for image uploads — the web UI uses an internal
endpoint that mints user-attachments URLs scoped to the repo's visibility.
gh-image (MIT, © drogers0) replicates
that flow as a gh CLI extension, so an agent can upload a local image from the
terminal and get a ready-to-embed Markdown image line back.
Overview
This skill drives gh-image to turn a local image file into a hosted GitHub
user-attachments URL, then embeds that URL into a pull request, issue, or
comment. It is the missing "attach a screenshot" capability for terminal agents.
When to Use This Skill
Use this skill when asked to:
- "Attach a screenshot to the PR" or "add an image to the PR description"
- "Put this image in the issue" / "comment with these screenshots"
- "Show the test results / before-and-after in the PR"
- Embed any local image into GitHub Markdown without leaving the terminal
How It Works
Step 1: Verify prerequisites
gh auth status # gh installed & authenticated
gh extension list | grep -q 'drogers0/gh-image' \
|| gh extension install drogers0/gh-image # review/pin the extension source firstgh-image does not use the gh token for the upload (that endpoint rejects
tokens). It needs a GitHub user_session cookie, resolved in this order:
--token <value> flag → GH_SESSION_TOKEN env var (use in CI/headless) → a
logged-in browser's cookie store (default for local use).
Step 2: Upload
# Use an absolute path; --repo is optional inside a repo working dir.
gh image "/abs/path/screenshot.png" --repo <owner>/<repo>gh image prints Markdown to stdout, one line per image:
Capture that output — it is the embeddable reference.
Step 3: Embed into the PR / issue / comment
MD="$(gh image "/abs/path/shot.png" --repo owner/repo)"
BODY="$(gh pr view <pr> --repo owner/repo --json body -q .body)"
printf '%s\n\n## Screenshots\n\n%s\n' "$BODY" "$MD" \
| gh pr edit <pr> --repo owner/repo --body-file -Use gh pr comment, gh issue edit, or gh issue comment with --body-file -
for other targets. Always pass --body-file - (not inline --body) so multi-line
bodies and special characters can't break shell quoting.
Show full SKILL.md (172 more words)Show less
Step 4: Verify
gh pr view <pr> --repo owner/repo --json body -q .body # confirm URL presentExamples
- Attach a CleanShot screenshot to PR #42: upload the file, append it under a
## Screenshotsheading in the PR body. - Embed before/after images in a README: upload both, paste the two Markdown lines into the README at the relevant section.
Best Practices
- Resolve globs to absolute paths first; quote paths with spaces/Unicode.
- For display sizing, embed an HTML tag instead of bare Markdown:
<img width="800" src="https://github.com/user-attachments/assets/<uuid>" />. - In CI, set
GH_SESSION_TOKENfrom a dedicated bot account.
Limitations
- Session cookie required. A
user_sessioncookie grants full account access (not scoped like a PAT) — treat it like a password; use a bot account in CI. - Write access to the target repo is required; orgs that enforce SAML SSO need
the session authorized at
https://github.com/orgs/<org>/ssofirst. - Private-repo images stay private: the
user-attachmentsURL inherits repo visibility, so an anonymous fetch on a private repo returns 404/403 by design. - Windows + Chrome 127+ cannot read cookies (library limitation) — use another
browser or
GH_SESSION_TOKEN. - The skill embeds the Markdown itself;
gh-imageonly prints the URL.
© sickn33, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/gh-image of sickn33/agentic-awesome-skills.
Open the folder on GitHubat commit 680176d
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 9, 2026.
Compare with similar skills
Gh Image next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Gh Image this skillsickn33/agentic-awesome-skills | 47k | 1 repos | ~1.2k | Automated safety check: Warn | MIT | |
| Update .NET OS Packagesdotnet/core | 22k | — | ~2.3k | Automated safety check: Pass | MIT | |
| Beautify GitHub Readmeoil-oil/beautify-github-readme | 1.8k | — | ~4.1k | Automated safety check: Pass | MIT | |
| Update .NET Supported OS Matrixdotnet/core | 22k | — | ~4.1k | Automated safety check: Pass | MIT | |
| Debate ReviewamElnagdy/review-skills | 132 | 2 repos | ~986 | Automated safety check: Pass | MIT | |
| Library Documentation Seekerwithkynam/vibecode-pro-max-kit | 1.1k | 1 repos | ~1k | Automated safety check: Notes | MIT |
Similar skills
- Official
Beautify GitHub Readme
oil-oil/beautify-github-readme
Redesign GitHub README homepages or create project-native pure SVG, hybrid SVG-composed PNG/WebP, and opt-in animated GIF assets.
- Official
Update .NET Supported OS Matrix
dotnet/core
Audits and updates the supported-os.json files for .NET releases, checking them against upstream lifecycle data and regenerating the markdown with the release-notes tool.
Debate Review
amElnagdy/review-skills
Two-model debate review of a GitHub PR, GitLab MR, Azure DevOps PR, or local working tree, posted as inline comments or printed.
Library Documentation Seeker
withkynam/vibecode-pro-max-kit
Looks up library and framework documentation through Context7 first, with bundled Node scripts as a fallback that fetch and analyze llms.txt files.
Post Draft Review
agent-substrate/substrate
Posts pull request review findings as GitHub draft (pending) inline comments for a human to edit and submit, instead of publishing them straight to the PR author.
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Related
Works with
Categories
Questions about Gh Image
What does Gh Image do?
Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README. Gh Image is an agent skill from sickn33/agentic-awesome-skills. Upload local images to GitHub and get canonical user-attachments embed URLs; use when asked to attach a screenshot to a PR, issue, or comment, or to embed before/after images in a README.
When should I use Gh Image?
Gh Image fits situations like: asked to attach a screenshot to a PR; embed before/after images in a README.
How do I install Gh Image in Claude Code?
Run `npx skills add sickn33/agentic-awesome-skills --skill gh-image -a claude-code`. Or copy the skill folder (skills/gh-image in sickn33/agentic-awesome-skills) into .claude/skills/gh-image in your project. Claude Code loads it when a task matches its description.
How do I install Gh Image in Codex?
Run `npx skills add sickn33/agentic-awesome-skills --skill gh-image -a codex`. Or copy the skill folder (skills/gh-image in sickn33/agentic-awesome-skills) into .agents/skills/gh-image in your project. Codex loads it when a task matches its description.
Can I use Gh Image in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add sickn33/agentic-awesome-skills --skill gh-image -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gh-image, .gemini/skills/gh-image, .github/skills/gh-image and .opencode/skills/gh-image in your project.
What does Gh Image need to run?
Going by SKILL.md and its folder, Gh Image needs the command-line tools its instructions call (gh) and credentials named GH_SESSION_TOKEN. Our summary lists: A credential in GH_SESSION_TOKEN.
Does Gh Image access the network?
SKILL.md names 1 domain. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Gh Image safe to install?
Our automated static check of SKILL.md flagged 1 warning(s): mentions a credentials file (ssh keys, cloud or package-manager tokens). Read the flagged lines before installing; the check is not a guarantee either way.
What licence does Gh Image use?
Gh Image is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Gh Image use?
About 1.2k tokens (SKILL.md is roughly 4.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Gh Image?
Skills that share tags, products or a category with Gh Image: Update .NET OS Packages (dotnet/core, 22k stars), Beautify GitHub Readme (oil-oil/beautify-github-readme, 1.8k stars), Update .NET Supported OS Matrix (dotnet/core, 22k stars) and Debate Review (amElnagdy/review-skills, 132 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Gh Image?
sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,379 GitHub stars. The repository holds 1,493 skills in this directory. The repository was last updated on October 9, 2026.
Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.