Module task_manager 

Available on crate feature server only.

Server-side runtime for the MCP Tasks extension (SEP-2663, io.modelcontextprotocol/tasks).

TaskManager owns the durable state for tasks a server has materialized in response to task-eligible requests (currently tools/call). It:

• spawns the underlying operation and tracks its lifecycle as a DetailedTask (working → terminal, optionally via input_required),
• answers tasks/get with the current state (including in-flight inputRequests and terminal result/error payloads),
• accepts tasks/update inputResponses and routes them to the running operation (ignoring unknown or already-answered keys per spec),
• handles cooperative tasks/cancel,
• enforces TTL-based expiry (ttl_ms), marking overdue tasks failed.

Tasks are only durably observable once TaskManager::spawn returns, satisfying the spec requirement that a server not return CreateTaskResult before tasks/get for that id would resolve.

Structs

TaskContext

Handle passed to a running task operation, allowing it to surface server-to-client requests (elicitation, sampling, roots) mid-task and await the client’s tasks/update response.

TaskManager

Server-side task store and executor for the SEP-2663 Tasks extension.

TaskOptions

Options controlling a spawned task.

Enums

TaskExit

How a task operation finished without producing a result.

Constants

DEFAULT_POLL_INTERVAL_MS

Default suggested polling interval, in milliseconds.

DEFAULT_TASK_TTL_MS

Default TTL (5 minutes, in milliseconds) applied when none is specified.

Functions

current_timestamp

Helper to generate an ISO 8601 timestamp for task metadata.

Type Aliases

TaskFuture

Boxed future representing the async operation backing a task.