Readonly[A unique symbol to identify ADK agent classes.
Readonly[A unique symbol to identify ADK LLM agent class.
ReadonlyafterCallback or list of callbacks to be invoked after the agent run.
When a list of callbacks is provided, the callbacks will be called in the order they are listed until a callback does not return undefined.
OptionalafterOptionalafterReadonlybeforeCallback or list of callbacks to be invoked before the agent run.
When a list of callbacks is provided, the callbacks will be called in the order they are listed until a callback does not return undefined.
OptionalbeforeOptionalbeforeOptionalcodeProtected ReadonlyconfigThe config this agent was constructed from.
Stored so clone can rebuild the agent by re-running the concrete constructor with overrides applied, which re-derives all state correctly instead of copying an already-mutated instance. Shallow-copied so later external mutation of the caller's object does not leak into clones.
Optional ReadonlydescriptionDescription about the agent's capability.
The model uses this to determine whether to delegate control to the agent. One-line description is enough and preferred.
OptionalgenerateOptionalinputOptionalmodelReadonlynameThe agent's name. Agent name must be a JS identifier and unique within the agent tree. Agent name cannot be "user", since it's reserved for end-user's input.
OptionaloutputOptionaloutputOptionalparentThe parent agent of this agent.
Note that an agent can ONLY be added as sub-agent once.
If you want to add one agent twice as sub-agent, consider to create two agent instances with identical config, but with different name and add them to the agent tree.
The parent agent is the agent that created this agent.
ReadonlysubThe sub-agents of this agent.
The resolved afterModelCallback field as a list of SingleAfterModelCallback.
This method is only for use by Agent Development Kit.
The resolved afterToolCallback field as a list of AfterToolCallback.
This method is only for use by Agent Development Kit.
The resolved beforeModelCallback field as a list of SingleBeforeModelCallback.
This method is only for use by Agent Development Kit.
The resolved beforeToolCallback field as a list of BeforeToolCallback.
This method is only for use by Agent Development Kit.
The resolved BaseLlm instance.
When not set, the agent will inherit the model from its ancestor.
Root agent of this agent. Computed dynamically by traversing up the parent chain.
ProtectedcallThe resolved globalInstruction field to construct global instruction.
This method is only for use by Agent Development Kit.
The context to retrieve the session state.
The resolved globalInstruction field.
The resolved instruction field to construct instruction for this agent.
This method is only for use by Agent Development Kit.
The context to retrieve the session state.
The resolved instruction field.
The resolved tools field as a list of BaseTool based on the context.
This method is only for use by Agent Development Kit.
Optionalcontext: ReadonlyContextCreates a copy of this agent with the given config fields overridden.
Mirrors adk-python's BaseAgent.clone(update=...). The clone is a detached
root: its parentAgent is always undefined. Sub-agents are recursively
cloned (and re-parented to the clone) unless subAgents is overridden.
Rebuilding via the concrete constructor re-derives all state, so a cloned
LlmAgent gets a fresh requestProcessors array rather than sharing the
original's. See google/adk-js#534.
Optionaloverrides: Partial<LlmAgentConfig>Config fields to override on the clone. Overriding
parentAgent is rejected, matching adk-python.
A new detached agent instance of the same concrete class.
ProtectedcreateCreates an invocation context for this agent.
The invocation context of the parent agent.
The invocation context for this agent.
Finds the agent with the given name in this agent and its descendants.
The name of the agent to find.
The agent with the given name, or undefined if not found.
Finds the agent with the given name in this agent's descendants.
The name of the agent to find.
The agent with the given name, or undefined if not found.
ProtectedhandleRuns the after agent callback if it exists.
The invocation context of the agent.
The event to return to the user, or undefined if no event is generated.
ProtectedhandleRuns the before agent callback if it exists.
The invocation context of the agent.
The event to return to the user, or undefined if no event is generated.
ProtectedrunEntry method to run an agent via text-based conversation.
The invocation context of the parent agent.
An AsyncGenerator that yields the events generated by the agent.
ProtectedrunCore logic to run this agent via text-based conversation.
The invocation context of the agent.
An AsyncGenerator that yields the events generated by the agent.
Entry method to run an agent via video/audio-based conversation.
The invocation context of the parent agent.
An AsyncGenerator that yields the events generated by the agent.
ProtectedrunCore logic to run this agent via video/audio-based conversation.
The invocation context of the agent.
An AsyncGenerator that yields the events generated by the agent.
An agent that uses a large language model to generate responses.