Skip to main content
ZeroTwo can spawn specialized subagents during Work, Cowork, and ZeroCode runs. Subagents handle parallel exploration, implementation slices, or research, then return summaries to the main thread.

​
Where to manage agents

Open Customize → Agents in ZeroTwo to browse specialized agents ZeroTwo can spawn:
  • Installed — agents available to your account
  • Personal / Plugin / System — filter by source
  • Explore — discover agents from plugins you can install
Each agent has a name, description, and optional icon. Plugin-owned agents appear when you install the parent plugin.
ZeroTwo subagent manager with Active and Done agent groups

​
How subagents show up in a run

When the main agent delegates work:
  1. ZeroTwo starts one or more subagent runs.
  2. Activity appears in the Work / Code panel and as viewer tabs you can open.
  3. Each subagent reports progress, findings, or failure back to the main thread.
  4. The main agent synthesizes those results into the final response.
A ZeroTwo conversation event showing that subagents started working
Ask ZeroTwo to delegate independent parts of a task when work can run in parallel — for example, exploring several packages, running test suites, or drafting separate sections of a plan.

​
Settings that affect subagents

In Settings → Advanced (and related desktop settings): Desktop permission mode and sandbox settings still apply to tools subagents use. See Permissions and Sandboxing.

​
Why use subagents

Even with large context windows, dumping every exploration note, test log, and stack trace into the main chat can hurt quality over time. Subagents help by:
  • Keeping the main agent focused on requirements and final outputs
  • Running specialized work in parallel
  • Returning summaries instead of raw intermediate noise
They use more tokens than a single-agent run because each subagent does its own model and tool work.

​
Project guidance for delegation

Use AGENTS.md (or ZEROTWO.md) to tell ZeroTwo when to delegate — for example, “explore each package with a subagent before proposing an architecture change.” Skills and plugins can also define agents ZeroTwo may spawn. See Skills and plugins and Build plugins.