Struct ToolContext 

pub struct ToolContext<'run> { /* private fields */ }

Per-call environment for ToolProvider::execute. Fields are sealed so the runtime can add capabilities without breaking tool authors.

Implementations

impl<'run> ToolContext<'run>

pub fn session_id(&self) -> &str

pub fn agent_frame_id(&self) -> &str

pub fn sessions(&self) -> ToolSessionAdmin<'run>

pub fn dispatch(&self) -> ToolDispatchClient<'run>

pub fn triggers(&self) -> ToolTriggerClient<'run>

pub fn processes(&self) -> ToolSessionProcessAdmin<'run>

pub fn emit_lashlang_child_process_started( &self, process_id: impl Into<String>, child_entry_name: Option<String>, )

pub fn direct_completions(&self) -> ToolDirectCompletionClient<'run>

pub fn attachments(&self) -> ToolAttachmentClient

pub fn process_events(&self) -> ToolProcessEventClient

pub fn durable_effects( &self, ) -> Result<ToolDurableEffects<'_, 'run>, RuntimeError>

Borrow this tool call’s durable effect boundary.

This is available only while executing a prepared tool call under a controller that explicitly supports durable tool effects. The returned facade records JSON steps and await-event waits in the caller’s existing effect log; it does not expose the underlying workflow engine context.

pub fn cancellation_token(&self) -> Option<&CancellationToken>

pub fn async_process_id(&self) -> Option<&str>

pub fn runtime_process_id(&self) -> Option<&str>

pub fn tool_call_id(&self) -> Option<&str>

pub fn prepared_payload(&self) -> &Value

pub fn decode_prepared_payload<T>(&self) -> Result<T, Error>

where T: DeserializeOwned,

pub fn attempt_number(&self) -> u32

pub fn max_attempts(&self) -> u32

pub fn replay_key(&self) -> Option<&str>

pub async fn completion_key(&self) -> Result<AwaitEventKey, RuntimeError>

Obtain the durable completion key for this call, required before returning ToolResult::Pending.

A tool that defers its outcome (waiting on a webhook, human approval, or another service) calls this, hands the returned AwaitEventKey to whatever will complete the work out-of-band, and then returns ToolResult::Pending(..). The key names the durable wait the runtime parks the call on; the external resolver delivers the result against it later.

The key is stored on the context and consumed by the dispatcher when the tool returns Pending. Returning Pending without first calling this fails the call with pending_tool_missing_completion_key. Calls made outside a prepared tool invocation (no tool call id) fail with tool_completion_key_missing_call_id.

pub fn with_async_process( self, process_id: impl Into<String>, cancellation_token: CancellationToken, ) -> Self

Trait Implementations

impl<'run> Clone for ToolContext<'run>

fn clone(&self) -> ToolContext<'run>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.