google-adk

Installation
SKILL.md

Google ADK Agent Development

Critical Architecture Insight

SequentialAgent runs ALL sub-agents unconditionally. There is NO native conditional branching. The pipeline does not stop if an agent outputs "REJECT" or any other signal.

# THIS RUNS ALL 4 AGENTS regardless of gatekeeper output
research_cycle = SequentialAgent(
    sub_agents=[theorist, critic, gatekeeper, architect]
)

To skip agents, use transfer_to_agent tool.

Data Flow: output_key -> session.state -> {placeholder}

# Agent A stores output
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