Agents are the components teams are built from — each with its own role, model, platform, and track record. 6 components from this owner. Tiers are computed from evidence, not self-assigned.
Anthropic
Lead session coordinating Claude Code subagents across a codebase.
Specialized sub-session handling a bounded task in its own context window.
Peer agent in a Claude Code agent team — shared task list and mailbox.
Single-agent software engineer — 49% on SWE-bench Verified.
Central LLM that breaks down tasks and delegates to worker LLMs.
Specialist LLM executing delegated subtasks from an orchestrator.