Project Session Manager

Project Session Manager (PSM) Skill

Automate isolated development environments using git worktrees and tmux sessions with Claude Code. Enables parallel work across multiple tasks, projects, and repositories.

Commands

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)

{
  "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:

Jira Configuration

To use Jira, add an alias with jira_project and provider: "jira":

{
  "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:

{
  "aliases": {
    "private": {
      "jira_project": "PRIV",
      "clone_url": "git@gitlab.internal: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

# 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:

# 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

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:

   # 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:

   gh pr view <pr_number> --repo <repo> --json number,title,author,headRefName,baseRefName,body,files,url
   

3. Ensure local repo exists:

   # 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:

   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:

   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:

   # Add to ~/.psm/sessions.json
   

7. Create tmux session:

   tmux new-session -d -s "psm:$project_alias:pr-$pr_number" -c "$worktree_path"
   

8. Launch Claude Code (unless --no-claude):

   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:

   gh issue view <issue_number> --repo <repo> --json number,title,body,labels,url
   

3. Create feature branch:

   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:

   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:

   cd "$local_path"
   git fetch origin main
   branch_name="feature/$feature_name"
   git checkout -b "$branch_name" origin/main
   

3. Create worktree:

   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:

   cat ~/.psm/sessions.json 2>/dev/null || echo '{"sessions":{}}'
   

2. Check tmux sessions:

   tmux list-sessions -F "#{session_name}" 2>/dev/null | grep "^psm:"
   

3. Check worktrees:

   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:

   tmux has-session -t "psm:$session_id" 2>/dev/null
   

3. Attach:

   tmux attach -t "psm:$session_id"
   

Subcommand: kill <session>

Purpose: Kill session and cleanup

Steps:

1. Kill tmux session:

   tmux kill-session -t "psm:$session_id" 2>/dev/null
   

2. Remove worktree:

   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:

   # 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:

   gh pr view <pr_number> --repo <repo> --json merged,state
   

3. For each issue session, check if closed:

   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:

   tmux display-message -p "#{session_name}" 2>/dev/null
   # or check if cwd is inside a worktree
   

2. Read session metadata:

   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

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:

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