Struct JsAgent 

pub struct JsAgent { /* private fields */ }

Available on crate feature js only.

A ReAct / tool-calling agent for JavaScript.

Implementations

impl JsAgent

pub fn new( max_iterations: Option<u32>, context_tokens: Option<usize>, recover_from_errors: Option<bool>, ) -> JsAgent

new Agent(maxIterations = 10, contextTokens = 8192, recoverFromErrors = false).

pub fn register_tool( &mut self, name: &str, description: &str, schema: &str, f: Function, ) -> Result<(), JsError>

Register a tool backed by a JavaScript function (input: string) => string.

pub fn add_system_prompt(&mut self)

Add the standard ReAct system prompt (with the tool list).

pub fn ask(&mut self, question: &str)

Add the user’s question.

pub fn step(&mut self, reply: &str) -> Result<JsValue, JsError>

Process one text reply. Returns {kind, content, tool?, input?} where kind is "thought", "action", "observation" or "final".

pub fn step_response(&mut self, body: &str) -> Result<JsValue, JsError>

Process one raw response body from OpenAI, Anthropic or Ollama. Returns {kind: "tool_calls", results: [{id, name, success, output}]} or {kind: "final", text}.

pub fn openai_tools(&self) -> Result<JsValue, JsError>

The tools array for OpenAI-style APIs.

pub fn anthropic_tools(&self) -> Result<JsValue, JsError>

The tools array for Anthropic.

pub fn transcript(&self) -> String

The conversation as one prompt string (text ReAct).

pub fn chat_messages(&self) -> Result<JsValue, JsError>

The conversation as [{role, content}] chat messages (text ReAct).

pub fn steps(&self) -> usize

Number of replies processed.

Trait Implementations

impl From<JsAgent> for JsValue

fn from(value: JsAgent) -> Self

Converts to this type from the input type.

impl FromWasmAbi for JsAgent

type Abi = WasmPtr<WasmRefCell<JsAgent>>

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for JsAgent

type Abi = WasmPtr<WasmRefCell<JsAgent>>

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for JsAgent

type Abi = WasmPtr<WasmRefCell<JsAgent>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<JsAgent>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for JsAgent

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for JsAgent

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for JsAgent

type Abi = WasmPtr<WasmRefCell<JsAgent>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<JsAgent>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for JsAgent

type Abi = WasmPtr<WasmRefCell<JsAgent>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<JsAgent>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl SupportsConstructor for JsAgent

impl SupportsInstanceProperty for JsAgent

impl SupportsStaticProperty for JsAgent

impl TryFromJsValue for JsAgent

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for JsAgent

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[JsAgent]>

impl VectorIntoWasmAbi for JsAgent

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[JsAgent]>) -> Self::Abi

impl WasmDescribe for JsAgent

fn describe()

impl WasmDescribeVector for JsAgent

fn describe_vector()