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This skill helps you automate isolated development environments using git worktrees and tmux sessions for parallel task work.
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---
name: project-session-manager
description: Manage isolated dev environments with git worktrees and tmux sessions
aliases: [psm]
---
# Project Session Manager (PSM) Skill
> **Quick Start:** For simple worktree creation without tmux sessions, use `omc teleport`:
> ```bash
> omc teleport #123 # Create worktree for issue/PR
> omc teleport my-feature # Create worktree for feature
> omc teleport list # List worktrees
> ```
> See [Teleport Command](#teleport-command) below for details.
Automate isolated development environments using git worktrees and tmux sessions with Claude Code. Enables parallel work across multiple tasks, projects, and repositories.
## Commands
| Command | Description | Example |
|---------|-------------|---------|
| `review <ref>` | PR review session | `/psm review omc#123` |
| `fix <ref>` | Issue fix session | `/psm fix omc#42` |
| `feature <proj> <name>` | Feature development | `/psm feature omc add-webhooks` |
| `list [project]` | List active sessions | `/psm list` |
| `attach <session>` | Attach to session | `/psm attach omc:pr-123` |
| `kill <session>` | Kill session | `/psm kill omc:pr-123` |
| `cleanup` | Clean merged/closed | `/psm cleanup` |
| `status` | Current session info | `/psm status` |
## Project References
Supported formats:
- **Alias**: `omc#123` (requires `~/.psm/projects.json`)
- **Full**: `owner/repo#123`
- **URL**: `https://github.com/owner/repo/pull/123`
- **Current**: `#123` (uses current directory's repo)
## Configuration
### Project Aliases (`~/.psm/projects.json`)
```json
{
"aliases": {
"omc": {
"repo": "Yeachan-Heo/oh-my-claudecode",
"local": "~/Workspace/oh-my-claudecode",
"default_base": "main"
}
},
"defaults": {
"worktree_root": "~/.psm/worktrees",
"cleanup_after_days": 14
}
}
```
## Providers
PSM supports multiple issue tracking providers:
| Provider | CLI Required | Reference Formats | Commands |
|----------|--------------|-------------------|----------|
| GitHub (default) | `gh` | `owner/repo#123`, `alias#123`, GitHub URLs | review, fix, feature |
| Jira | `jira` | `PROJ-123` (if PROJ configured), `alias#123` | fix, feature |
### Jira Configuration
To use Jira, add an alias with `jira_project` and `provider: "jira"`:
```json
{
"aliases": {
"mywork": {
"jira_project": "MYPROJ",
"repo": "mycompany/my-project",
"local": "~/Workspace/my-project",
"default_base": "develop",
"provider": "jira"
}
}
}
```
**Important:** The `repo` field is still required for cloning the git repository. Jira tracks issues, but you work in a git repo.
For non-GitHub repos, use `clone_url` instead:
```json
{
"aliases": {
"private": {
"jira_project": "PRIV",
"clone_url": "[email protected]:team/repo.git",
"local": "~/Workspace/repo",
"provider": "jira"
}
}
}
```
### Jira Reference Detection
PSM only recognizes `PROJ-123` format as Jira when `PROJ` is explicitly configured as a `jira_project` in your aliases. This prevents false positives from branch names like `FIX-123`.
### Jira Examples
```bash
# Fix a Jira issue (MYPROJ must be configured)
psm fix MYPROJ-123
# Fix using alias (recommended)
psm fix mywork#123
# Feature development (works same as GitHub)
psm feature mywork add-webhooks
# Note: 'psm review' is not supported for Jira (no PR concept)
# Use 'psm fix' for Jira issues
```
### Jira CLI Setup
Install the Jira CLI:
```bash
# macOS
brew install ankitpokhrel/jira-cli/jira-cli
# Linux
# See: https://github.com/ankitpokhrel/jira-cli#installation
# Configure (interactive)
jira init
```
The Jira CLI handles authentication separately from PSM.
## Directory Structure
```
~/.psm/
├── projects.json # Project aliases
├── sessions.json # Active session registry
└── worktrees/ # Worktree storage
└── <project>/
└── <type>-<id>/
```
## Session Naming
| Type | Tmux Session | Worktree Dir |
|------|--------------|--------------|
| PR Review | `psm:omc:pr-123` | `~/.psm/worktrees/omc/pr-123` |
| Issue Fix | `psm:omc:issue-42` | `~/.psm/worktrees/omc/issue-42` |
| Feature | `psm:omc:feat-auth` | `~/.psm/worktrees/omc/feat-auth` |
---
## Implementation Protocol
When the user invokes a PSM command, follow this protocol:
### Parse Arguments
Parse `{{ARGUMENTS}}` to determine:
1. **Subcommand**: review, fix, feature, list, attach, kill, cleanup, status
2. **Reference**: project#number, URL, or session ID
3. **Options**: --branch, --base, --no-claude, --no-tmux, etc.
### Subcommand: `review <ref>`
**Purpose**: Create PR review session
**Steps**:
1. **Resolve reference**:
```bash
# Read project aliases
cat ~/.psm/projects.json 2>/dev/null || echo '{"aliases":{}}'
# Parse ref format: alias#num, owner/repo#num, or URL
# Extract: project_alias, repo (owner/repo), pr_number, local_path
```
2. **Fetch PR info**:
```bash
gh pr view <pr_number> --repo <repo> --json number,title,author,headRefName,baseRefName,body,files,url
```
3. **Ensure local repo exists**:
```bash
# If local path doesn't exist, clone
if [[ ! -d "$local_path" ]]; then
git clone "https://github.com/$repo.git" "$local_path"
fi
```
4. **Create worktree**:
```bash
worktree_path="$HOME/.psm/worktrees/$project_alias/pr-$pr_number"
# Fetch PR branch
cd "$local_path"
git fetch origin "pull/$pr_number/head:pr-$pr_number-review"
# Create worktree
git worktree add "$worktree_path" "pr-$pr_number-review"
```
5. **Create session metadata**:
```bash
cat > "$worktree_path/.psm-session.json" << EOF
{
"id": "$project_alias:pr-$pr_number",
"type": "review",
"project": "$project_alias",
"ref": "pr-$pr_number",
"branch": "<head_branch>",
"base": "<base_branch>",
"created_at": "$(date -Iseconds)",
"tmux_session": "psm:$project_alias:pr-$pr_number",
"worktree_path": "$worktree_path",
"source_repo": "$local_path",
"github": {
"pr_number": $pr_number,
"pr_title": "<title>",
"pr_author": "<author>",
"pr_url": "<url>"
},
"state": "active"
}
EOF
```
6. **Update sessions registry**:
```bash
# Add to ~/.psm/sessions.json
```
7. **Create tmux session**:
```bash
tmux new-session -d -s "psm:$project_alias:pr-$pr_number" -c "$worktree_path"
```
8. **Launch Claude Code** (unless --no-claude):
```bash
tmux send-keys -t "psm:$project_alias:pr-$pr_number" "claude" Enter
```
9. **Output session info**:
```
Session ready!
ID: omc:pr-123
Worktree: ~/.psm/worktrees/omc/pr-123
Tmux: psm:omc:pr-123
To attach: tmux attach -t psm:omc:pr-123
```
### Subcommand: `fix <ref>`
**Purpose**: Create issue fix session
**Steps**:
1. **Resolve reference** (same as review)
2. **Fetch issue info**:
```bash
gh issue view <issue_number> --repo <repo> --json number,title,body,labels,url
```
3. **Create feature branch**:
```bash
cd "$local_path"
git fetch origin main
branch_name="fix/$issue_number-$(echo "$title" | tr ' ' '-' | tr '[:upper:]' '[:lower:]' | head -c 30)"
git checkout -b "$branch_name" origin/main
```
4. **Create worktree**:
```bash
worktree_path="$HOME/.psm/worktrees/$project_alias/issue-$issue_number"
git worktree add "$worktree_path" "$branch_name"
```
5. **Create session metadata** (similar to review, type="fix")
6. **Update registry, create tmux, launch claude** (same as review)
### Subcommand: `feature <project> <name>`
**Purpose**: Start feature development
**Steps**:
1. **Resolve project** (from alias or path)
2. **Create feature branch**:
```bash
cd "$local_path"
git fetch origin main
branch_name="feature/$feature_name"
git checkout -b "$branch_name" origin/main
```
3. **Create worktree**:
```bash
worktree_path="$HOME/.psm/worktrees/$project_alias/feat-$feature_name"
git worktree add "$worktree_path" "$branch_name"
```
4. **Create session, tmux, launch claude** (same pattern)
### Subcommand: `list [project]`
**Purpose**: List active sessions
**Steps**:
1. **Read sessions registry**:
```bash
cat ~/.psm/sessions.json 2>/dev/null || echo '{"sessions":{}}'
```
2. **Check tmux sessions**:
```bash
tmux list-sessions -F "#{session_name}" 2>/dev/null | grep "^psm:"
```
3. **Check worktrees**:
```bash
ls -la ~/.psm/worktrees/*/ 2>/dev/null
```
4. **Format output**:
```
Active PSM Sessions:
ID | Type | Status | Worktree
-------------------|---------|----------|---------------------------
omc:pr-123 | review | active | ~/.psm/worktrees/omc/pr-123
omc:issue-42 | fix | detached | ~/.psm/worktrees/omc/issue-42
```
### Subcommand: `attach <session>`
**Purpose**: Attach to existing session
**Steps**:
1. **Parse session ID**: `project:type-number`
2. **Verify session exists**:
```bash
tmux has-session -t "psm:$session_id" 2>/dev/null
```
3. **Attach**:
```bash
tmux attach -t "psm:$session_id"
```
### Subcommand: `kill <session>`
**Purpose**: Kill session and cleanup
**Steps**:
1. **Kill tmux session**:
```bash
tmux kill-session -t "psm:$session_id" 2>/dev/null
```
2. **Remove worktree**:
```bash
worktree_path=$(jq -r ".sessions[\"$session_id\"].worktree" ~/.psm/sessions.json)
source_repo=$(jq -r ".sessions[\"$session_id\"].source_repo" ~/.psm/sessions.json)
cd "$source_repo"
git worktree remove "$worktree_path" --force
```
3. **Update registry**:
```bash
# Remove from sessions.json
```
### Subcommand: `cleanup`
**Purpose**: Clean up merged PRs and closed issues
**Steps**:
1. **Read all sessions**
2. **For each PR session, check if merged**:
```bash
gh pr view <pr_number> --repo <repo> --json merged,state
```
3. **For each issue session, check if closed**:
```bash
gh issue view <issue_number> --repo <repo> --json closed,state
```
4. **Clean up merged/closed sessions**:
- Kill tmux session
- Remove worktree
- Update registry
5. **Report**:
```
Cleanup complete:
Removed: omc:pr-123 (merged)
Removed: omc:issue-42 (closed)
Kept: omc:feat-auth (active)
```
### Subcommand: `status`
**Purpose**: Show current session info
**Steps**:
1. **Detect current session** from tmux or cwd:
```bash
tmux display-message -p "#{session_name}" 2>/dev/null
# or check if cwd is inside a worktree
```
2. **Read session metadata**:
```bash
cat .psm-session.json 2>/dev/null
```
3. **Show status**:
```
Current Session: omc:pr-123
Type: review
PR: #123 - Add webhook support
Branch: feature/webhooks
Created: 2 hours ago
```
---
## Error Handling
| Error | Resolution |
|-------|------------|
| Worktree exists | Offer: attach, recreate, or abort |
| PR not found | Verify URL/number, check permissions |
| No tmux | Warn and skip session creation |
| No gh CLI | Error with install instructions |
## Teleport Command
The `omc teleport` command provides a lightweight alternative to full PSM sessions. It creates git worktrees without tmux session management — ideal for quick, isolated development.
### Usage
```bash
# Create worktree for an issue or PR
omc teleport #123
omc teleport owner/repo#123
omc teleport https://github.com/owner/repo/issues/42
# Create worktree for a feature
omc teleport my-feature
# List existing worktrees
omc teleport list
# Remove a worktree
omc teleport remove issue/my-repo-123
omc teleport remove --force feat/my-repo-my-feature
```
### Options
| Flag | Description | Default |
|------|-------------|---------|
| `--worktree` | Create worktree (default, kept for compatibility) | `true` |
| `--path <path>` | Custom worktree root directory | `~/Workspace/omc-worktrees/` |
| `--base <branch>` | Base branch to create from | `main` |
| `--json` | Output as JSON | `false` |
### Worktree Layout
```
~/Workspace/omc-worktrees/
├── issue/
│ └── my-repo-123/ # Issue worktrees
├── pr/
│ └── my-repo-456/ # PR review worktrees
└── feat/
└── my-repo-my-feature/ # Feature worktrees
```
### PSM vs Teleport
| Feature | PSM | Teleport |
|---------|-----|----------|
| Git worktree | Yes | Yes |
| Tmux session | Yes | No |
| Claude Code launch | Yes | No |
| Session registry | Yes | No |
| Auto-cleanup | Yes | No |
| Project aliases | Yes | No (uses current repo) |
Use **PSM** for full managed sessions. Use **teleport** for quick worktree creation.
---
## Requirements
Required:
- `git` - Version control (with worktree support v2.5+)
- `jq` - JSON parsing
- `tmux` - Session management (optional, but recommended)
Optional (per provider):
- `gh` - GitHub CLI (for GitHub workflows)
- `jira` - Jira CLI (for Jira workflows)
## Initialization
On first run, create default config:
```bash
mkdir -p ~/.psm/worktrees ~/.psm/logs
# Create default projects.json if not exists
if [[ ! -f ~/.psm/projects.json ]]; then
cat > ~/.psm/projects.json << 'EOF'
{
"aliases": {
"omc": {
"repo": "Yeachan-Heo/oh-my-claudecode",
"local": "~/Workspace/oh-my-claudecode",
"default_base": "main"
}
},
"defaults": {
"worktree_root": "~/.psm/worktrees",
"cleanup_after_days": 14,
"auto_cleanup_merged": true
}
}
EOF
fi
# Create sessions.json if not exists
if [[ ! -f ~/.psm/sessions.json ]]; then
echo '{"version":1,"sessions":{},"stats":{"total_created":0,"total_cleaned":0}}' > ~/.psm/sessions.json
fi
```
This skill manages isolated development environments using git worktrees and tmux sessions to enable parallel, team-friendly work. It automates creating review, fix, and feature sessions, tracks active worktrees, and can launch Claude Code inside tmux for agent-assisted coding. Use it to keep context-separated branches and sessions without polluting your main repo.
The skill parses subcommands (review, fix, feature, list, attach, kill, cleanup, status) and resolves references via project aliases, full repo refs, or URLs. It creates git worktrees under a configurable root, registers session metadata in a sessions registry, manages tmux sessions named psm:<project>:<id>, and optionally launches Claude Code inside tmux panes. Cleanup and status checks use provider CLIs (gh or jira) to detect merged/closed work.
What if a worktree already exists for a session?
PSM will offer to attach to the existing tmux session, recreate the worktree, or abort. Prefer attach to preserve state.
Does PSM require tmux or Claude Code?
tmux is recommended but optional; use teleport for worktrees without tmux. Claude Code is launched by default but can be disabled with --no-claude.