Claude Agent Teams

Anthropic’s subagents — inside Claude Code’s runtime.

Officially “Claude Agent SDK.” Community calls it “Claude Agent Teams.”

Claude Agent SDKPython MIT · TS Commercial7.0k ★ Python · 1.4k ★ TS

Strong tool loop. Flat tree. Heavy token tax.

The three numbers that matter

~20k

tokens per subagent call

Context isolation isn’t free.

10

concurrent maximum

Hard parallelism cap.

1

level of nesting

Subagents cannot spawn subagents.

Strong vs honest

Strong

✓ Zero-glue tool loop — Read, Write, Bash, MCP built in

✓ Context isolation per subagent

✓ Auth flexibility — API key, Bedrock, Vertex, Azure

·

Honest

· No agent-to-agent messaging — everything via parent

· TS SDK is commercial-licensed (not OSI-open)

· Single-vendor runtime — Claude Code

When to pick it

When you want Claude Code’s exact tool loop as a library inside your own process and you accept the vendor coupling. Not a replacement for a real orchestrator when you need hierarchy, messaging, or multi-runtime.

docs.claude.com/en/agent-sdk · github.com/anthropics/claude-agent-sdk-python

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