Initial supervisor skill with auto-discovery

SKILL.md

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+---
+name: supervisor
+description: Process manager for running multiple skills concurrently
+metadata:
+  version: "1.0.0"
+  vibestack:
+    main: true
+---
+
+# Supervisor Skill
+
+Runs multiple skills as managed processes using [supervisord](http://supervisord.org/).
+
+## Features
+
+- Auto-discovers skills with `run.sh` scripts
+- Manages process lifecycle (start, stop, restart)
+- Log aggregation
+- Process health monitoring
+- Web UI for process management (optional)
+
+## Auto-Discovery
+
+On startup, supervisor scans `/skills/*/scripts/run.sh` and creates a program entry for each skill that has a `run.sh` script.
+
+Skills can opt-out by setting `SUPERVISOR_SKIP=true` in their environment or by not having a `run.sh` script.
+
+## Configuration
+
+### Environment Variables
+
+| Variable | Description | Default |
+|----------|-------------|---------|
+| `SUPERVISOR_HTTP_PORT` | Web UI port (0 = disabled) | `9001` |
+| `SUPERVISOR_USER` | Web UI username | `admin` |
+| `SUPERVISOR_PASSWORD` | Web UI password | `admin` |
+| `SUPERVISOR_LOG_DIR` | Log directory | `/var/log/supervisor` |
+
+### Per-Skill Configuration
+
+Skills can provide a `.supervisor.conf` file in their directory to customize their process:
+
+```ini
+[program:my-skill]
+priority=100
+autostart=true
+autorestart=true
+startsecs=5
+```
+
+## Usage
+
+Supervisor is typically the `main: true` skill that orchestrates other skills:
+
+```bash
+SKILL_URLS="https://git.../supervisor https://git.../caddy https://git.../ttyd"
+MAIN_SKILL="supervisor"
+```
+
+## Web UI
+
+Access at `http://localhost:9001` to:
+- View process status
+- Start/stop/restart processes
+- View logs

scripts/autorun.sh

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+#!/bin/bash
+set -e
+
+SKILLS_DIR="${SKILLS_DIR:-/skills}"
+SUPERVISOR_LOG_DIR="${SUPERVISOR_LOG_DIR:-/var/log/supervisor}"
+SUPERVISOR_HTTP_PORT="${SUPERVISOR_HTTP_PORT:-9001}"
+SUPERVISOR_USER="${SUPERVISOR_USER:-admin}"
+SUPERVISOR_PASSWORD="${SUPERVISOR_PASSWORD:-admin}"
+
+# Idempotent supervisord installation
+install_supervisor() {
+    if command -v supervisord &>/dev/null; then
+        echo "supervisord already installed: $(supervisord --version)"
+        return 0
+    fi
+
+    echo "Installing supervisord..."
+    apt-get update
+    apt-get install -y supervisor
+
+    echo "supervisord installed: $(supervisord --version)"
+}
+
+# Setup directories
+setup_dirs() {
+    mkdir -p "$SUPERVISOR_LOG_DIR"
+    mkdir -p /etc/supervisor/conf.d
+    echo "Log directory: $SUPERVISOR_LOG_DIR"
+}
+
+# Generate base supervisord.conf
+generate_base_config() {
+    cat > /etc/supervisor/supervisord.conf << EOF
+[supervisord]
+nodaemon=true
+logfile=$SUPERVISOR_LOG_DIR/supervisord.log
+pidfile=/var/run/supervisord.pid
+childlogdir=$SUPERVISOR_LOG_DIR
+user=root
+
+[unix_http_server]
+file=/var/run/supervisor.sock
+chmod=0700
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory=supervisor.rpcinterface:make_main_rpcinterface
+
+[supervisorctl]
+serverurl=unix:///var/run/supervisor.sock
+
+EOF
+
+    # Add HTTP server if port > 0
+    if [ "$SUPERVISOR_HTTP_PORT" -gt 0 ]; then
+        cat >> /etc/supervisor/supervisord.conf << EOF
+[inet_http_server]
+port=*:$SUPERVISOR_HTTP_PORT
+username=$SUPERVISOR_USER
+password=$SUPERVISOR_PASSWORD
+
+EOF
+        echo "Web UI enabled on port $SUPERVISOR_HTTP_PORT"
+    fi
+
+    # Include conf.d
+    cat >> /etc/supervisor/supervisord.conf << EOF
+[include]
+files=/etc/supervisor/conf.d/*.conf
+EOF
+
+    echo "Base config written to /etc/supervisor/supervisord.conf"
+}
+
+# Auto-discover skills with run.sh and generate program configs
+discover_skills() {
+    echo "Discovering skills..."
+
+    local priority=100
+
+    for skill_dir in "$SKILLS_DIR"/*/; do
+        local skill_name=$(basename "$skill_dir")
+        local run_script="$skill_dir/scripts/run.sh"
+        local custom_conf="$skill_dir/.supervisor.conf"
+
+        # Skip self
+        if [ "$skill_name" = "supervisor" ]; then
+            continue
+        fi
+
+        # Skip if no run.sh
+        if [ ! -x "$run_script" ]; then
+            echo "  $skill_name: no run.sh, skipping"
+            continue
+        fi
+
+        echo "  $skill_name: found run.sh"
+
+        # Use custom config if provided
+        if [ -f "$custom_conf" ]; then
+            cp "$custom_conf" "/etc/supervisor/conf.d/${skill_name}.conf"
+            echo "    Using custom config"
+        else
+            # Generate default config
+            cat > "/etc/supervisor/conf.d/${skill_name}.conf" << EOF
+[program:$skill_name]
+command=$run_script
+directory=$skill_dir
+priority=$priority
+autostart=true
+autorestart=true
+startsecs=3
+startretries=3
+stopwaitsecs=10
+stdout_logfile=$SUPERVISOR_LOG_DIR/${skill_name}.log
+stdout_logfile_maxbytes=10MB
+stderr_logfile=$SUPERVISOR_LOG_DIR/${skill_name}.err
+stderr_logfile_maxbytes=10MB
+EOF
+            echo "    Generated default config (priority=$priority)"
+        fi
+
+        priority=$((priority + 10))
+    done
+}
+
+install_supervisor
+setup_dirs
+generate_base_config
+discover_skills
+
+echo "Supervisor setup complete"

scripts/run.sh

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+#!/bin/bash
+set -e
+
+echo "Starting supervisord..."
+exec supervisord -c /etc/supervisor/supervisord.conf