# Scion > Manage concurrent LLM-based code agents with scion - orchestrate parallel agents with isolated workspaces - Skill: `study8677/scion` (Agent Skill, multi-file: 5 files) - Install (CLI): `npx skillmds@latest add study8677/scion` - Raw SKILL.md: https://api.skillmd.com/api/skills/study8677/scion/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: study8677 (https://skillmd.com/u/study8677) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/study8677/scion --- # Scion Agent Management Skill Scion is a container-based orchestration tool for managing concurrent LLM-based code agents. It enables parallel execution of specialized sub-agents with isolated identities, credentials, and workspaces. ## Core Concepts ### Projects A **project** is the grouping construct for agents, represented by the `.scion` directory. Each project can have its own project, and there's also a global project in `~/.scion/`. ### Agents An **agent** is an isolated LLM instance running in a container with its own workspace (git worktree), credentials, and configuration. ### Templates **Templates** are blueprints for creating agents. Common templates include: - `gemini` - Gemini CLI-based agents - `claude` - Claude Code-based agents - `opencode` - OpenCode-based agents - `codex` - Codex-based agents ### Harnesses A **harness** is the LLM interface (Gemini CLI, Claude Code, etc.) that the agent uses. ## Command Reference ### Initialization ```bash # Initialize a project in the current project (creates .scion directory) scion init # Initialize the global project scion init --global ``` ### Starting Agents ```bash # Start an agent with a task scion start # Start with a specific template scion start "task" --type claude # Start and immediately attach to the session scion start "task" --attach # Start with a custom branch scion start "task" --branch feature-branch # Start with a custom workspace path scion start "task" --workspace /path/to/workspace ``` ### Listing Agents ```bash # List agents in the current project scion list # List all agents across all projects scion list --all # Output as JSON scion list --format json ``` Output columns: - NAME: Agent name - TEMPLATE: Template used (gemini, claude, etc.) - RUNTIME: Execution runtime (docker, container, k8s) - PROJECT: Project name - AGENT STATUS: Agent state - SESSION: Session status - CONTAINER: Container status ### Interacting with Agents ```bash # Attach to an agent's interactive session scion attach # Send a message to an agent scion message "Your message here" # Send message with interrupt (stops current work first) scion message "Urgent task" --interrupt # Broadcast message to all agents in current project scion message --broadcast "Stop and report status" # Broadcast to all agents across all projects scion message --all "Global announcement" ``` ### Viewing Logs ```bash # View agent logs scion logs ``` ### Stopping and Resuming ```bash # Stop an agent scion stop # Stop and remove the agent scion stop --rm # Resume a stopped agent scion resume # Resume with attach scion resume --attach ``` ### Deleting Agents ```bash # Delete an agent (stops container, removes directory and worktree) scion delete # Delete but preserve the git branch scion delete --preserve-branch # Delete all stopped agents scion delete --stopped ``` ### Workspace Synchronization ```bash # Sync workspace (direction depends on sync mode) scion sync # Sync to the agent container scion sync to # Sync from the agent container scion sync from ``` ### Template Management ```bash # List available templates scion templates list # Show template configuration scion templates show # Create a new template scion templates create --harness gemini # Clone an existing template scion templates clone # Delete a template scion templates delete # Update default templates from binary scion templates update-default ``` ### Configuration ```bash # List all effective settings scion config list # Get a specific setting scion config get # Set a local setting (in current project) scion config set # Set a global setting scion config set --global ``` ## Common Workflows ### Parallel Task Execution To run multiple agents in parallel on different tasks: ```bash # Start multiple agents for parallel work scion start coder "Implement the new API endpoint" scion start tester "Write tests for the auth module" scion start auditor "Review security of user input handling" --type claude # Check status of all agents scion list # Attach to any agent to monitor or interact scion attach coder ``` ### Agent Collaboration Pattern When coordinating work across agents: 1. Start agents for different subtasks 2. Use `scion list` to monitor progress 3. Use `scion message` to communicate new information 4. Use `scion attach` when human intervention is needed 5. Use `scion logs` to review work history ### Cleanup ```bash # Delete all stopped agents at once scion delete --stopped # Delete specific agent, keeping its branch for review scion delete my-agent --preserve-branch ``` ## Global Flags These flags work with most commands: - `--project, -g `: Specify a project directory - `--global`: Use the global project (~/.scion/) - `--profile, -p `: Use a specific configuration profile - `--format `: Output format (json, plain) - currently for list only ## Tips for Agents 1. **Check existing agents first**: Before starting a new agent, use `scion list` to see what's already running. 2. **Use descriptive names**: Agent names should reflect their purpose (e.g., `refactor-auth`, `test-api`, `audit-security`). 3. **Choose appropriate templates**: Use `--type claude` for Claude Code, default is Gemini CLI. 4. **Monitor with logs**: Use `scion logs ` to check progress without interrupting. 5. **Interrupt carefully**: The `--interrupt` flag on messages stops current work - use only when necessary. 6. **Preserve branches**: When deleting agents whose work might need review, use `--preserve-branch`. 7. **Use attach for complex interactions**: When an agent needs guidance, `scion attach` provides full interactive access.