ROS 2 Execution (Sandboxed)#

Setup & Installation#

Before this skill can be used, the local environment must be configured. The setup script dynamically discovers your ROS paths and approved workspaces. You can re-run the setup script at any time if you add new workspaces.

1. Source your environment: You MUST source your ROS 2 environment and any local workspaces first in your terminal. bash

   source /opt/ros/<distro>/setup.bash
   source ~/my_ros_ws/install/setup.bash
   
   

2. Run setup: bash

   ./scripts/setup.sh
   
   

3. Whitelist Packages: Edit config/packages.json to explicitly allow the packages you want the agent to execute.

4. Parameter Profiles (Optional): Create YAML parameter files in ~/.openclaw/workspace/ros_profiles/ for quick execution using the --profile flag.

Overview#

Use this skill to execute ROS 2 commands.

SECURITY CONSTRAINT: You must ALWAYS use the safe wrapper script located at ./scripts/safe_ros2_execution.py. This script performs strict security checks using Python's subprocess (no raw shell execution, preventing injection) and validates:

1. The command type (must be run/launch/call).
2. The package is in an approved workspace.
3. The package is explicitly allowlisted.

Wrapper Path: Resolve ./scripts/safe_ros2_execution.py against this SKILL.md directory.

Allowed Commands#

Usage: ./scripts/safe_ros2_execution.py <command> <package> <target> [--profile <name> | --params-file <path>] [extra_args]

• Run a node: ./scripts/safe_ros2_execution.py run <pkg> <node>
• Run a node with a Parameter Profile: ./scripts/safe_ros2_execution.py run <pkg> <node> --profile outdoor (Loads from ~/.openclaw/workspace/ros_profiles/outdoor.yaml)
• Run a node with a specific Params File: ./scripts/safe_ros2_execution.py run <pkg> <node> --params-file /tmp/temp_params.yaml
• Launch a file: ./scripts/safe_ros2_execution.py launch <pkg> <launch_file>
• Call a service: ./scripts/safe_ros2_execution.py service_call <pkg> <srv_name> <srv_type> <args>
• Send an action goal: ./scripts/safe_ros2_execution.py action_send_goal <pkg> <action_name> <action_type> <args>

Handling Parameters (--ros-args)#

Avoid passing complex strings (like nested arrays or JSON dictionaries) directly in the command arguments. Instead:

1. Write the parameters to a temporary YAML file.
2. Use the --params-file /path/to/file.yaml flag to safely load them.
3. For recurring setups, save the YAML file to ~/.openclaw/workspace/ros_profiles/<name>.yaml and use --profile <name>.