Execute a task using a specialized sub-agent. Sub-agents are defined by markdown files in the prompt/agents/ directory. Each sub-agent has specific capabilities and instructions for handling particular types of tasks (e.g., code review, vulnerability testing, etc.) Use 'list_agents' to see available sub-agent types. The task prompt describing what the agent should do The type of specialized agent to use (e.g., 'code_audit', 'vuln_review') A short (3-5 words) description of the task Whether the task succeeded Task description Task execution result The agent type used Additional task metadata List all available sub-agents that can be used with the 'task' tool. Returns the name and description of each available agent. Whether the listing succeeded Formatted list of available agents List of agent objects with name, description, path