> ## Documentation Index
> Fetch the complete documentation index at: https://aomi.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Asynchronous tasks
> Learn how Aomi runs detached, scheduled, and condition-triggered work with durable state, bounded retries, and execution-time wallet checks.
An asynchronous task is an instruction that can outlive the turn that created
it. It can start now without blocking the conversation, run at a future time,
repeat on a cadence, or wait for a measurable condition.
The saved task is not a sleeping agent process. It is a durable intent with a
trigger and enough context to start a fresh thread. When the trigger is ready,
Aomi claims one occurrence and runs it through the normal transaction pipeline.
## Three ways to start work
| Tool | When it runs | Use it for |
| ------------------- | ---------------------------------------- | ------------------------------------------------------------------------------------ |
| `spawn_thread` | As soon as the scheduler picks it up | Independent work that should start now without returning a result inline |
| `schedule_cron` | At a future time, once or on a cadence | Scheduled rebalances, reports, DCA, and other time-based routines |
| `wake_on_condition` | When a read guard or time window matches | Threshold alerts, stop-loss rules, take-profit rules, and other state-based triggers |
All three tools save an intent first. They do not execute or sign the underlying
action during the scheduling turn. The task records its instruction, target
App, source thread, owner, and a snapshot of the current user state.
## From saved intent to completed run
```mermaid theme={null}
sequenceDiagram
actor U as You
participant T as Saved task
participant S as Scheduler
participant C as Child thread
U->>T: Save intent and trigger
S->>T: Check trigger
T-->>S: Ready
S->>T: Claim occurrence with a lease
S->>C: Create a fresh thread
C->>C: Build, simulate, and check wallet policy
alt The run finishes cleanly
C-->>S: Complete
S->>T: Retire or advance
else The run stops early
S->>T: Retry after the lease expires
end
```
### 1. Save
Saving a task captures its intent and execution context. A future run gets the
wallet and chain context that existed when the task was created. The selected
App must still be available when the task fires.
Recurring schedules use the timezone from your settings. Whole-day schedules
stay anchored to local wall-clock time across daylight-saving changes. The
model does not choose or change your timezone.
### 2. Check the trigger
Time-based tasks become eligible at their scheduled time. Condition tasks
periodically call a read tool and compare a value or time window. A false
condition is a normal check, not a failed attempt.
A condition can expire if it never matches. A recurring watchdog can also use
hysteresis. After it fires, the measured value must cross a separate re-arm
threshold before it may fire again. This avoids repeated actions while a value
remains on the same side of a boundary.
### 3. Claim and run
Before execution, Aomi claims the occurrence with a lease. The lease prevents
two workers from running the same occurrence at the same time. Different due
tasks may run concurrently, so you should not depend on their relative order.
The claim is not an exactly-once guarantee. If execution stops before clean
completion, the lease expires and the occurrence can run again. A task is tried
at most three times. After that, it is retained as a dead letter for inspection.
App tools should therefore make retried side effects safe to recognize or
repeat.
### 4. Execute in a fresh thread
Each occurrence creates a child thread with its saved intent and context. The
thread follows the same [transaction pipeline](/docs/concepts/transaction-pipeline)
as an interactive request. It builds, simulates, checks signing authority, and
only then submits a transaction.
A one-time task is retired after a clean run. A recurring schedule advances to
its next anchored occurrence. A recurring condition waits until its re-arm rule
is satisfied.
## Signing is decided when the task runs
Scheduling never grants signing authority. Each occurrence checks the current
[wallet policy](/docs/security/permission-model) at execution time.
* **Auto** can complete unattended only when a live delegated grant covers the
exact wallet.
* **Manual** can prepare a request for your wallet, but the asynchronous run
cannot provide the missing human approval by itself.
* **Locked** stops before signing.
* A read-only source thread creates read-only task threads. They cannot sign.
Changing or revoking wallet authorization affects the next occurrence. A saved
task cannot preserve authority that is no longer valid.
## Optional confirmation for conditions
A condition can add a confirmation step after its read guard matches. A
separate read-only child evaluates the available evidence and must return a
clear yes before the action thread starts.
An unclear answer, a no, a stall, or a crash fails closed. The task remains
eligible for a later check, and the rejected confirmation does not consume a
retry attempt.
## Choosing the right tool
* Use `spawn_thread` for self-contained work that should begin now and should
not block the current conversation.
* Use `schedule_cron` when time determines readiness.
* Use `wake_on_condition` when observable state determines readiness.
* Use a foreground child from [Multi-threading](/docs/concepts/multi-threading) when
the current conversation needs the result before it can continue.
## Further reading
See how parent and child threads preserve context while narrowing authority.
Follow each occurrence from intent through simulation and submission.
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