Workflow tool ⚠ verify

Definition

The Workflow tool (TypeScript Agent SDK v0.3.149+) scripts orchestration of dozens-to-hundreds of agents. ⚠ verify (2026-07-08).

Key points

• Introduced in the TS Agent SDK v0.3.149+. ⚠ verify (2026-07-08).
• Purpose: script orchestration of dozens–hundreds of agents — scaling beyond ad-hoc Hub-and-spoke orchestration.
• Complements the Task and Agent tool (which spawns individual subagents) by coordinating many of them programmatically.
• Useful when decomposition produces a large fan-out that needs structured scripting rather than manual spawning.

Why it matters for the exam

• Tests awareness that large-scale multi-agent orchestration has a dedicated tool (Workflow) beyond spawning single subagents with the Agent tool.

Common gotchas

• Distinct from the Agent tool: Agent spawns one subagent; Workflow scripts orchestration across many.
• TS Agent SDK feature — don't assume identical availability across every SDK/version.

See also

• Hub-and-spoke orchestration
• Task and Agent tool
• Task decomposition (chaining vs adaptive)

Sources

• docs-tools-agents