Claude Code Session Sharing Plugin

A Claude Code plugin that saves and shares your coding sessions to GitHub repositories in readable markdown format.

Features

• Converts JSONL session logs to clean, readable markdown
• Automatically commits and pushes to any GitHub repository
• Organizes sessions by username in configurable directory structure
• Supports optional session descriptions
• Collapses tool usage details by default for cleaner reading
• Fully configurable via environment variables

Prerequisites

• Python 3.6+
• GitHub CLI (gh) installed and authenticated
• A GitHub repository to store sessions (public or private)

Installation

Quick Install (Recommended)

One-liner installation:

curl -fsSL https://raw.githubusercontent.com/PostHog/claude-code-share-plugin/main/install.sh | \
  bash -s -- --claude-share-repo repo-owner/repo-name

Replace repo-owner/repo-name with your sessions repository.

What gets auto-detected:

• GitHub username (from gh CLI)
• Current session log (from ~/.claude/projects/ based on working directory)
• Branch (defaults to main)
• Path (defaults to sessions)

Configuration is saved automatically to ~/.claude/share-plugin-config.json during installation - no environment variables needed!

Manual Installation

Option 1: Install from GitHub

In Claude Code, run:

/plugin marketplace add PostHog/claude-code-share-plugin
/plugin install share@claude-code-share-plugin

Option 2: Install locally

Clone the repository:

gh repo clone PostHog/claude-code-share-plugin ~/claude-plugins/claude-code-share-plugin

In Claude Code:

/plugin marketplace add ~/claude-plugins/claude-code-share-plugin
/plugin install share@claude-code-share-plugin

Manual Configuration (Optional)

The Quick Install automatically saves configuration to ~/.claude/share-plugin-config.json.

If you need to change the repository later, you can either:

1. Re-run the installer with a new repo
2. Edit the config file directly:

   cat > ~/.claude/share-plugin-config.json <<EOF
   {
     "repo": "new-owner/new-repo"
   }
   EOF

3. Use environment variable (takes precedence over config file):

   export CLAUDE_SHARE_REPO="repo-owner/repo-name"

Team/Project Configuration (Optional)

For automatic plugin installation across your team, add to your project's .claude/settings.json:

{
  "extraKnownMarketplaces": {
    "claude-code-share-plugin": {
      "source": {
        "source": "github",
        "repo": "PostHog/claude-code-share-plugin"
      }
    }
  },
  "enabledPlugins": [
    "share@claude-code-share-plugin"
  ]
}

When team members trust the repository, Claude Code will automatically install the marketplace and plugin.

Usage

Basic usage

Share the current session with no description:

/share

With description

Share with a descriptive name:

/share fixing authentication bug

This creates a file like: 20251021-142530-fixing-authentication-bug.md

Output structure

Sessions are organized as:

your-sessions-repo/
└── sessions/
    └── username/       # Auto-detected from gh CLI
        ├── 20251021-142530-fixing-auth.md
        ├── 20251021-153245-adding-tests.md
        └── ...

Example markdown output

# Claude Code Session

**Date:** 2025-10-21 14:25:30

---

## User

Can you help me fix the authentication bug?

## Claude

I'll help you investigate the authentication issue. Let me first check the relevant files.

<details>
<summary>Tool: read_any_files</summary>

```json
{
  "files": [
    {
      "path": "/src/auth/login.py"
    }
  ]
}

Configuration

What	How
Configured during install	Repository saved to ~/.claude/share-plugin-config.json
Auto-detected	Username (from gh CLI)
Auto-detected	Session log (from ~/.claude/projects/ based on working directory)
Defaults	Branch: main, Path: sessions

Troubleshooting

"Error: Repository not configured"

The plugin needs to know which GitHub repository to use. Run the installer:

curl -fsSL https://raw.githubusercontent.com/PostHog/claude-code-share-plugin/main/install.sh | \
  bash -s -- repo-owner/repo-name

Or create the config file manually:

cat > ~/.claude/share-plugin-config.json <<EOF
{
  "repo": "repo-owner/repo-name"
}
EOF

"Error cloning repository"

Ensure:

1. The gh CLI is installed: gh --version
2. You're authenticated: gh auth status
3. You have access to the target repository
4. The repository exists

"Error pushing to GitHub"

Check that:

1. You have write access to the repository
2. The branch exists (or create it first)
3. Your authentication hasn't expired: gh auth refresh

Development

To modify the plugin:

1. Edit files in this directory
2. Uninstall the old version: /plugin uninstall share
3. Reinstall: /plugin install share@claude-code-share-plugin
4. Test your changes

How It Works

1. Reads the current Claude Code session log (JSONL format)
2. Parses each message (user/assistant/tool calls)
3. Converts to readable markdown with:
   • User messages
   • Claude responses
   • Tool usage in collapsible <details> sections
4. Clones target repo to /tmp/claude-share-temp
5. Creates session file with timestamp and description
6. Commits and pushes to GitHub
7. Provides direct link to view the session

Privacy & Security

• Session logs may contain sensitive information from your codebase
• Consider using a private repository for session storage
• Review the generated markdown before sharing links publicly
• The plugin uses gh CLI which respects your existing GitHub authentication

License

MIT