App Launcher
Launch applications, open URLs in browser, and list running processes. Requires approval for launching applications.
Install
$ agentstack add skill-markdevshop-ag3nt-app-launcher ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-markdevshop-ag3nt-app-launcher) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
App Launcher Skill
This skill provides application control on the local system. It can launch applications, open URLs, and manage running processes.
⚠️ Security Note
Launching applications requires user approval. The agent will pause and ask for confirmation before:
- Starting any application
- Opening URLs (to prevent phishing)
- Focusing/switching to applications
When to Use
- User asks to "open" or "launch" an application
- User wants to open a URL in their browser
- User asks what applications are running
- User wants to switch to a specific application
Available Commands
Launch Application
Launch an application by name.
python scripts/app_control.py launch "notepad"
python scripts/app_control.py launch "Visual Studio Code"
python scripts/app_control.py launch "chrome"Common app names:
- Windows: notepad, calc, explorer, cmd, powershell, code, chrome, firefox
- macOS: Safari, Finder, Terminal, "Visual Studio Code", Notes
- Linux: firefox, nautilus, gnome-terminal, code
Open URL
Open a URL in the default browser.
python scripts/app_control.py url "https://example.com"
python scripts/app_control.py url "https://github.com"List Running Applications
Show currently running applications (not all processes).
python scripts/app_control.py list
python scripts/app_control.py list --all # Include background processesFocus Application
Bring an application window to the foreground.
python scripts/app_control.py focus "notepad"
python scripts/app_control.py focus "chrome"Platform Support
| Operation | Windows | macOS | Linux | |-----------|---------|-------|-------| | Launch | ✅ start | ✅ open -a | ✅ Various | | Open URL | ✅ webbrowser | ✅ webbrowser | ✅ webbrowser | | List apps | ✅ tasklist | ✅ ps | ✅ ps | | Focus | ⚠️ Limited | ✅ AppleScript | ⚠️ Limited |
Notes
- App names are case-insensitive on Windows
- On macOS, use the full app name (e.g., "Visual Studio Code")
- Focus functionality may be limited depending on OS security settings
- Some apps may take a moment to start
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: markdevshop
- Source: markdevshop/AG3NT
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.