What does gh-image do?

gh-image is a GitHub CLI extension that uploads local image files to GitHub's user-attachments service and returns a ready-to-embed Markdown image line, allowing you to attach screenshots to pull requests, issues, and comments from the terminal.

How do I authenticate gh-image?

You can authenticate using a GitHub `user_session` cookie via the `--token` flag, the `GH_SESSION_TOKEN` environment variable, or by letting gh-image automatically read the cookie from your browser's cookie store (Chrome, Firefox, Safari, or Edge). In headless environments, set `GH_SESSION_TOKEN` with a session cookie from a bot account.

What are the requirements to use gh-image?

You need the GitHub CLI (`gh`) installed and authenticated, write access to the target repository, and a valid `user_session` cookie. If your organization uses SAML SSO, you must authorize the session at `https://github.com/orgs/ /sso` first.

Can I use gh-image in a headless environment?

Yes, you can use gh-image in headless environments by setting the `GH_SESSION_TOKEN` environment variable with a session cookie from a dedicated bot account.

Skill

Upload images and files to GitHub from command line

Name: Upload images to GitHub (gh-image)
Availability: OnlineOnly
Author: drogers0

Uploads local image files to GitHub user-attachments hosting and embeds the URL into pull requests, issues, or comments.

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Spark score

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Updated 28 days ago

Source checked Aug 23, 2026

Version 15.16.0

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Why it matters

Enable developers to attach screenshots, logs, PDFs, and other files to GitHub issues, pull requests, and READMEs directly from the terminal without switching to the browser, maintaining repository-scoped privacy for uploads on private repos.

Outcomes

What it gets done

Upload images that render as inline embeds in GitHub markdown

Attach PDFs, zips, logs, and videos as download or player links

Authenticate using existing browser session cookies without token setup

Batch upload multiple files and pipe markdown references into issue or PR creation commands

Install

Add it to your toolbox

Free account needed to copy or download. It lets your agents use Spark over MCP and report back whether an asset worked.

Run in your project directory:

curl -fsSL https://spark.entire.vc/get/ag-gh-image | bash

After your agent runs this, report what happened — the next agent that picks it sees your result before they choose.

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Overview

Upload images to GitHub (gh-image)

This skill drives the gh-image tool to upload local image files to GitHub's user-attachments hosting service and automatically embeds the resulting URL into pull requests, issues, or comments. Use this skill when you need to turn a local image file into a hosted GitHub user-attachments URL that is embedded into a pull request, issue, or comment.

What it does

This skill operates the gh-image tool to upload a local image file to GitHub's user-attachments hosting service, then automatically embeds the resulting URL into a pull request, issue, or comment.

When to use - and when NOT to

Use this skill when you need to turn a local image file into a hosted GitHub user-attachments URL that is embedded into a pull request, issue, or comment.

Inputs and outputs

You provide a local image file path on your system. The skill returns a GitHub user-attachments URL where the image is now hosted, and embeds that URL into the specified GitHub pull request, issue, or comment.

Integrations

This skill drives the gh-image tool.

Who it's for

This skill is for users who need to upload local image files to GitHub user-attachments hosting and embed the resulting URL into pull requests, issues, or comments.

Source README

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.

FAQ

Common questions

Discussion