Skills & Marketplace

Skills are AI-powered automation packages that extend what Molly and your AI agents can do. Each skill teaches your AI assistant new capabilities — from running daily server health checks to managing backups, hardening security, and automating routine tasks.

Skills are procedural (runbooks + tools). For declarative long-term memory — facts Molly or an external AI client should remember across conversations — use the Memory MCP surface and Molly Memory slash commands. Skills and memory compose: a skill can call the Memory MCP to recall prior facts before acting.

Skills come in two types:

• Instruction-only — the AI learns new tasks through written guidance (no code runs)
• Script-based — the AI gains access to tools backed by shell scripts or Docker containers

Using Skills

Navigate to Skills from the sidebar to see all installed skills. From here you can:

1. Browse skills organized by category
2. Enable or disable individual skills per Molly mode (Personal or Server)
3. Run any skill manually with one click
4. View run history and output for each skill

Skill Categories

Skills are organized into 10 categories covering common self-hosting needs:

Skill Scheduling

Skills can run automatically on a schedule using cron expressions.

1. Open a skill and click Schedule
2. Choose a preset (hourly, daily, weekly) or enter a custom cron expression
3. Click Save Schedule

The skill list shows the last run time and next scheduled run for each skill.

Example: Daily Health Report

Set up a daily health report that runs every morning:

1. Navigate to Skills and find Server Health Report
2. Click Schedule and select Daily at 8:00 AM
3. Enable notifications to receive the report via your preferred channel
4. Click Save

The skill runs automatically each morning, checks CPU, RAM, disk, and service status, and delivers a summary.

Creating Custom Skills

You can build your own skills from scratch:

1. Navigate to Skills and click Create Skill
2. Fill in the metadata:
   • Name — a descriptive name for the skill
   • Category — select from the 10 categories above
   • Persona — which Molly mode this skill applies to
   • Description — a short summary of what the skill does
3. Write AI instructions in the SKILL.md editor. This is the core of your skill — it tells the AI what to do, step by step
4. Optionally add tools — shell scripts that the AI can execute as part of the skill
5. Click Test to run the skill in a sandbox and verify it works
6. Click Save to add it to your installed skills

SKILL.md Format

The SKILL.md file uses Markdown to describe what the AI should do. Include:

• A clear goal statement
• Step-by-step instructions
• Expected output format
• Error handling guidance

Skill Marketplace

The Skill Marketplace is a community repository where you can discover and share skills.

Installing from Marketplace

1. Navigate to Skills > Marketplace
2. Browse or search for skills by name, category, or keyword
3. Click a skill to view its details, ratings, and reviews
4. Click Install to add it to your server
5. The skill appears in your installed skills list, ready to enable

Publishing Your Skills

Share your custom skills with the community:

1. Open the skill you want to publish
2. Click Publish to Marketplace
3. Add a detailed description and usage instructions
4. Submit for review

Your skill is reviewed for quality and security before being made available to other users.

Ratings and Reviews

After using a marketplace skill, you can rate it (1-5 stars) and leave a review to help other users find the best skills.

Sandbox Security

Skills run in a secure sandbox environment. The security level depends on the skill type:

Docker Sandbox

Script-based skills can run inside a Docker container for maximum isolation:

• No network access — scripts cannot reach the internet or local network
• Read-only filesystem — only designated output directories are writable
• Memory limits — containers are capped to prevent resource exhaustion
• No privilege escalation — containers run as unprivileged users with no access to host devices

Connecting Skills to AI

Skills integrate with the broader AI system in several ways:

Molly Settings

Go to Molly > Settings to toggle which skills are active for each persona mode:

• Personal mode — enable productivity and automation skills
• Server mode — enable server management, security, and monitoring skills

Agent Builder

When creating custom agents in AI Hub > Agents, you can attach specific skills to an agent. The agent gains access to all tools and instructions from the attached skills.

AI Hub Agents

Pre-built AI Hub agents (like the Server Admin agent or Security agent) have relevant skills auto-assigned based on their role. You can customize these assignments from the agent detail page.

Troubleshooting

Skill fails to run

Check the skill’s run history for error details. Common causes include:

• Missing dependencies (a required app is not installed)
• Insufficient permissions for host scripts
• Docker not available for sandbox skills

Scheduled skill does not execute

Verify that:

1. The schedule is enabled (not paused)
2. The server was running at the scheduled time
3. No other skill was already running (skills execute sequentially by default)

Marketplace skill not appearing after install

Refresh the Skills page. If the skill still does not appear, check Skills > Updates for any pending post-install steps.