Module tools 

Structs

PendingCompletion

Configuration carried by a ToolResult::Pending result: how long the runtime waits for the deferred outcome, and what to do if it times out or is cancelled.

PreparedToolCall

Runtime-prepared executable tool call.

StaticToolProvider

Author a fixed-tool provider without hand-rolling tool_manifests / resolve_contract: supply the ToolDefinitions once and an StaticToolExecute for behavior. A ToolProvider that serves a fixed set of ToolDefinitions from a cache, delegating execution to an StaticToolExecute.

ToolAvailabilityConfig

ToolCall

Per-call inputs handed to ToolProvider::execute.

ToolCallOutput

ToolCallRecord

ToolContext

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

ToolContract

Heavy tool contract resolved only when a prompt or call needs schemas/docs.

ToolDefinition

Static authoring helper for tools.

ToolDurableEffects

Durable effect operations available to advanced in-process tools.

ToolManifest

Tool metadata exposed to prompts, catalogs, UI, and availability checks. The optional compact contract is the catalog-facing projection of the resolved contract; full schemas stay in ToolContract.

ToolPrepareCall

Inputs handed to ToolProvider::prepare_tool_call.

ToolPrepareContext

ToolRestoreReport

Outcome of ToolRegistry::restore_state: the adopted generation plus the ids of persisted tools that no registered source currently resolves. Hosts should surface a non-empty orphaned list to the user — the session opened, but those tools are Off until their source returns.

ToolSourceHandle

ToolState

ToolStateEntry

ToolTriggerClient

Enums

CancelHint

What a pending tool call signals about its out-of-band work when cancelled.

TimeoutBehavior

What a pending tool call does when its deadline elapses.

ToolActivation

ToolArgumentProjectionPolicy

ToolAvailability

ToolOutputContract

ToolResult

The outcome a ToolProvider::execute returns for a single call.

ToolScheduling

How a tool’s invocations should be scheduled relative to other tools in the same batch of model-produced tool calls.

Traits

StaticToolExecute

Author a fixed-tool provider without hand-rolling tool_manifests / resolve_contract: supply the ToolDefinitions once and an StaticToolExecute for behavior. Per-call execution behavior for a StaticToolProvider.

ToolProvider

Trait for providing tools to the sandbox. Implement this per-project.