Struct InjectedState 

pub struct InjectedState<S: State> { /* private fields */ }

Marker: this tool parameter receives the current graph state.

The LLM never sees this parameter — it’s injected by the runtime. The value is a clone of the state at the time ToolNode::call() executes.

Future usage (with #[tool] macro, Plan 010)

#[tool]
async fn my_tool(
    query: String,
    state: InjectedState<AgentState>,
) -> Result<Value, PeError> {
    let messages = state.get().messages();
    // ... use state for context ...
}

Implementations

impl<S: State> InjectedState<S>

pub fn new(state: S) -> Self

Create a new injected state wrapper.

pub fn get(&self) -> &S

Access the wrapped state.

pub fn into_inner(self) -> S

Consume the wrapper and return the inner state.