Temporal

Temporal is an open-source durable execution platform that lets teams write workflows as code that survive crashes, retries, and outages. A Temporal cluster tracks every workflow execution's state and event history, so long-running business processes — order fulfillment, payment pipelines, infrastructure provisioning, human-in-the-loop approvals — run reliably for minutes or months at a time.

With the Temporal integration in Sim, your agents can drive those durable workflows directly. Connect to any Temporal cluster that exposes the server's HTTP API (enabled by default on the frontend's HTTP port, 7243, in modern Temporal servers) and:

• Run workflows: start executions with JSON input, use signal-with-start for exactly-once delivery, and set ID reuse policies, cron schedules, timeouts, memo fields, and search attributes.
• Communicate with running workflows: send signals, invoke update handlers and wait for their results, and run queries against live workflow state.
• Observe executions: describe a single execution (status, timing, pending activities), list and count executions with Temporal's visibility query language, and fetch full event histories — including just the close event to read a workflow's outcome.
• Operate the fleet: cancel or terminate runaway executions, reset a workflow to a previous point in its history, and manage schedules — list, describe, pause, unpause, trigger, and delete them.

Workflow inputs and results are encoded with Temporal's standard json/plain payload converter, so the integration interoperates with workers written in any Temporal SDK. If your server has authentication enabled, provide an API key and Sim sends it as a Bearer token on every request.

Usage Instructions

Connect to a Temporal cluster over the server's HTTP API to start workflow executions, send signals, run queries against workflow state, describe and list executions, fetch event histories, and cancel or terminate running workflows. API key only required for servers with authentication enabled.

Actions

temporal_start_workflow

Start a new workflow execution on a Temporal cluster.

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temporal_signal_workflow

Send a signal to a running Temporal workflow execution.

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temporal_signal_with_start

Atomically signal a Temporal workflow, starting it first if it is not already running, so the signal is never lost.

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temporal_query_workflow

Run a synchronous query against the state of a Temporal workflow execution and return the result.

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temporal_update_workflow

Invoke an update handler on a running Temporal workflow and wait for its result. Unlike a signal, an update is validated by the workflow and returns a response.

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temporal_describe_workflow

Get the current state of a Temporal workflow execution, including status, timing, memo, search attributes, and pending activities.

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temporal_list_workflows

List workflow executions in a Temporal namespace, optionally filtered with a visibility query.

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temporal_count_workflows

Count workflow executions in a Temporal namespace matching a visibility query, with optional GROUP BY aggregation.

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temporal_get_workflow_history

Fetch the event history of a Temporal workflow execution, optionally filtered to just the close event.

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temporal_cancel_workflow

Request cooperative cancellation of a running Temporal workflow execution. The workflow decides how to respond to the request.

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temporal_terminate_workflow

Forcefully terminate a Temporal workflow execution immediately, without giving the workflow a chance to react.

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temporal_reset_workflow

Reset a Temporal workflow execution to a past workflow task, terminating the current run and replaying from the reset point in a new run.

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temporal_describe_task_queue

List the workers currently polling a Temporal task queue, to check whether a workflow or activity has live workers.

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temporal_create_schedule

Create a Temporal schedule that starts a workflow on a cron or interval cadence.

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temporal_list_schedules

List schedules in a Temporal namespace.

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temporal_describe_schedule

Get the configuration and current state of a Temporal schedule, including its spec, recent actions, and upcoming run times.

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temporal_pause_schedule

Pause a Temporal schedule so it stops taking actions until unpaused.

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temporal_unpause_schedule

Unpause a Temporal schedule so it resumes taking actions.

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temporal_trigger_schedule

Trigger an immediate action of a Temporal schedule, outside its normal spec.

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temporal_delete_schedule

Delete a Temporal schedule. Workflows already started by the schedule keep running.

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