GeminiCLI/Subagent
- GeminiCLI's implementation of AI/Agent/Subagent: specialized agents inside the main session, each with its own system prompt, a restricted or specialized tool set, and an independent context window.
- Shipped in a GeminiCLI/Extension as
.md agent definition files in an agents/ directory, per the extensions reference. - Preview as of mid-2026 — the extensions reference states that sub-agents are "a preview feature currently under active development," which is the one gap keeping a Gemini extension short of a complete multi-component bundle.