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

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": "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

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

code

~/.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:

•Subcommand: review, fix, feature, list, attach, kill, cleanup, status
•Reference: project#number, URL, or session ID
•Options: --branch, --base, --no-claude, --no-tmux, etc.

Subcommand: `review <ref>`

Purpose: Create PR review session

Steps:

•

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

•

Fetch PR info:

bash

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

•

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

•

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"

•

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

•
Update sessions registry:
bash
```
# Add to ~/.psm/sessions.json
```

•

Create tmux session:

bash

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

•

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

bash

tmux send-keys -t "psm:$project_alias:pr-$pr_number" "claude" Enter

•

Output session info:

code

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:

•
Resolve reference (same as review)

•

Fetch issue info:

bash

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

•

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

•

Create worktree:

bash

worktree_path="$HOME/.psm/worktrees/$project_alias/issue-$issue_number"
git worktree add "$worktree_path" "$branch_name"

•
Create session metadata (similar to review, type="fix")
•
Update registry, create tmux, launch claude (same as review)

Subcommand: `feature <project> <name>`

Purpose: Start feature development

Steps:

•
Resolve project (from alias or path)

•

Create feature branch:

bash

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

•

Create worktree:

bash

worktree_path="$HOME/.psm/worktrees/$project_alias/feat-$feature_name"
git worktree add "$worktree_path" "$branch_name"

•
Create session, tmux, launch claude (same pattern)

Subcommand: `list [project]`

Purpose: List active sessions

Steps:

•

Read sessions registry:

bash

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

•

Check tmux sessions:

bash

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

•
Check worktrees:
bash
```
ls -la ~/.psm/worktrees/*/ 2>/dev/null
```

•

Format output:

code

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:

•
Parse session ID: project:type-number

•

Verify session exists:

bash

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

•
Attach:
bash
```
tmux attach -t "psm:$session_id"
```

Subcommand: `kill <session>`

Purpose: Kill session and cleanup

Steps:

•

Kill tmux session:

bash

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

•

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

•
Update registry:
bash
```
# Remove from sessions.json
```

Subcommand: `cleanup`

Purpose: Clean up merged PRs and closed issues

Steps:

•
Read all sessions

•

For each PR session, check if merged:

bash

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

•

For each issue session, check if closed:

bash

gh issue view <issue_number> --repo <repo> --json closed,state

•
Clean up merged/closed sessions:
- •Kill tmux session
- •Remove worktree
- •Update registry

•

Report:

code

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:

•

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

•
Read session metadata:
bash
```
cat .psm-session.json 2>/dev/null
```

•

Show status:

code

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

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

Project Session Manager (PSM) Skill

Commands

Project References

Configuration

Project Aliases (~/.psm/projects.json)

Providers

Jira Configuration

Jira Reference Detection

Jira Examples

Jira CLI Setup

Directory Structure

Session Naming

Implementation Protocol

Parse Arguments

Subcommand: review <ref>

Subcommand: fix <ref>

Subcommand: feature <project> <name>

Subcommand: list [project]

Subcommand: attach <session>

Subcommand: kill <session>

Subcommand: cleanup

Subcommand: status

Error Handling

Requirements

Initialization

Project Aliases (`~/.psm/projects.json`)

Subcommand: `review <ref>`

Subcommand: `fix <ref>`

Subcommand: `feature <project> <name>`

Subcommand: `list [project]`

Subcommand: `attach <session>`

Subcommand: `kill <session>`

Subcommand: `cleanup`

Subcommand: `status`