The Agent Skills Directory

[COMMAND_EXECUTION]: Arbitrary shell command execution via conditional expressions.
The work_schedule.py service evaluates when expressions from agent configurations by executing the content of $(...) patterns directly through subprocess.run(shell=True). This allows any shell command defined in the agent's YAML metadata to be executed during schedule checks.
[COMMAND_EXECUTION]: Modification of system persistence mechanisms.
The schedule_helper.py script programmatically reads and writes to the system crontab using crontab -l and crontab [file]. This is used to persist agent tasks and heartbeat monitors across system restarts and sessions.
[COMMAND_EXECUTION]: Dynamic construction and execution of launcher commands.
The main.py script assembles shell command strings from configuration data to launch agent sessions in tmux. While it uses shlex.quote for individual arguments, it executes the resulting strings in a shell environment.
[COMMAND_EXECUTION]: Background process spawning and daemon-like behavior.
The timer.py command uses subprocess.Popen with start_new_session=True to fork worker processes that remain active in the background to execute delayed actions.
[COMMAND_EXECUTION]: Dynamic script discovery and execution.
The heartbeat_service.py module searches for and executes a notify.py script from other skills across multiple paths, including the user's home directory (~/.agent/skills/ or ~/.claude/skills/).

agent-manager