cc-sticky-notify

A pinned sticky note notification system for Mac. Key Claude Code events appear as a yellow floating sticky note in the top-right corner, persisting until manually closed.

File Structure (fully self-contained)

~/.claude/skills/cc-sticky-notify/
├── SKILL.md
├── install.sh                   ← one-time setup: chmod + settings.json guidance
└── scripts/
    ├── notify.sh                ← main notification script (called directly by hooks)
    ├── sticky-window.swift      ← Swift source (compiled by install.sh on first install)
    └── sticky-notify.app/       ← .app bundle (built automatically on first use)
        └── Contents/
            ├── Info.plist
            └── MacOS/
                └── sticky-notify-app

Two-layer notification mechanism:

1. display notification — no permissions required, appears instantly in top-right corner
2. Swift NSWindow (.floating level) — pinned sticky note, close manually with ✕

Hook coverage (consistent with popo-notify):

Requirements

• macOS 12 Monterey or later

• Xcode Command Line Tools — required for compiling the Swift floating window, code signing, and JSON parsing

  xcode-select --install
  

  All dependencies (swiftc, codesign) come from Xcode CLT. install.sh will check and exit early if CLT is missing.

Installation

When the user requests installation, follow these steps:

Step 1 — Run install.sh

bash ~/.claude/skills/cc-sticky-notify/install.sh

What this script does:

1. Check Xcode CLT — exits early with instructions if xcode-select -p fails.
2. chmod +x notify.sh — ensures the script is executable (git clone may strip the +x bit).
3. Build .app bundle — compiles sticky-window.swift, writes Info.plist + entitlements, signs with codesign. Skipped if the bundle already exists.
4. Check hook configuration — inspects ~/.claude/settings.json for existing cc-sticky-notify entries and prints the required hook commands if none are found.
5. Smoke test — fires a test notification via notify.sh.

Step 2 — Configure settings.json hooks

Read ~/.claude/settings.json and append one sticky-notify entry to each of the following four locations in the hooks field (skip if already present).

Stop — append to Stop[0].hooks:

{
  "type": "command",
  "command": "$HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh"
}

Notification/permission_prompt — append:

{
  "type": "command",
  "command": "$HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh '🔐 Claude Code Permission approval required, check terminal'"
}

Notification/idle_prompt — append:

{
  "type": "command",
  "command": "$HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh '💬 Claude Code Awaiting your input, check terminal'"
}

PostToolUse/Bash — append (triggers only on failure):

{
  "type": "command",
  "command": "bash -c 'INPUT=$(cat); STATUS=$(echo \"$INPUT\" | jq -r \".tool_response.exitCode // 0\"); [ \"$STATUS\" != \"0\" ] && $HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh \"❌ Claude Code Command failed, exit code: $STATUS\" || true'"
}

Step 3 — Verify

# Test arg mode (simulates Notification hook)
$HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh '✅ Installation verified'

# Test stdin mode (simulates Stop hook)
echo '{"session_id":"test12345678"}' | $HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh

A yellow sticky note and system notification appearing in the top-right corner confirms successful installation.

Configuration

CC_STICKY_NOTIFY_CLOSE_TIMEOUT — Auto-close timeout

Sticky notes automatically close after 1 hour (3600 seconds) by default. Override with this environment variable:

export CC_STICKY_NOTIFY_CLOSE_TIMEOUT=300   # auto-close after 5 minutes

• Unit: seconds (decimals supported, e.g. 30.5)
• Must be greater than 0; otherwise falls back to the default 3600 seconds
• Set a large value (e.g. 86400) to keep the note visible for nearly a full day

To persist the setting, add it to your shell config (~/.zshrc or ~/.bashrc):

echo 'export CC_STICKY_NOTIFY_CLOSE_TIMEOUT=300' >> ~/.zshrc

Troubleshooting

No system notification either

• Verify the hooks configuration is correctly written in ~/.claude/settings.json
• Path should be $HOME/.claude/skills/cc-sticky-notify/scripts/notify.sh

xcrun: error: invalid active developer path during compilation

• Xcode Command Line Tools path is broken (common after macOS upgrade or Xcode reinstall)
• Fix: sudo xcode-select --reset
• If that doesn't work, reinstall: xcode-select --install
• The floating sticky window will be disabled if swiftc can't compile, but system notifications still work

Permission denied on notify.sh

• The script is missing execute permission — happens when files are cloned/copied without preserving permissions
• Fix: chmod +x ~/.claude/skills/cc-sticky-notify/scripts/notify.sh
• Re-run install.sh after fixing (the latest version auto-runs chmod +x on startup)