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A trigger defines when a task fires. Every task has exactly one trigger. Pick the right trigger for your use case and Mantle handles the rest.

Manual

Run when you press a button

Schedule

Run on a time-based schedule

On Complete

Run after another task finishes

Integrations

Run when something happens in a connected app

Manual

The simplest trigger. The task runs when you press the Run now button — nothing fires automatically.
Each agent can have at most one manual task. This is the “on demand” button you always have available.
When to use it:
  • Deep-dive research you want to kick off yourself
  • Reports you generate occasionally, not on a fixed schedule
  • Testing an agent before automating it further
  • One-off tasks where timing doesn’t matter
What it looks like in practice:
Open task page → Press Run now → Agent executes → Result in chosen channel
Common examples:
  • “Analyze this week’s data” — you run it whenever you’re ready to review
  • “Draft a proposal for [client]” — triggered when you start working on a pitch
  • “Summarize my notes” — run before a meeting when you need a quick brief
Manual tasks are a great starting point. Once you see the agent working well, switch the trigger to a schedule or integration.

Schedule

The task runs automatically at a set time or interval. No manual action needed. Frequency options:
FrequencyExample
OnceFire at a specific date and time
MinuteEvery N minutes
HourlyEvery hour, or every N hours
DailyEvery day at a set time
WeeklyOn specific days of the week
MonthlyOn a specific date or day (e.g., 1st Monday)
YearlyOnce a year
CustomEvery N minutes / hours / days / weeks / months
Configuration:
  • Time — pick the time in 15-minute intervals
  • Timezone — your local timezone is pre-selected; change it if needed
  • Start date — optional; the task won’t fire before this date
  • End condition — run forever, stop after N runs, or stop on a specific date
Common examples:
  • Daily digest — daily at 8am
  • Weekly report — every Monday at 9am
  • Metrics check — every hour
  • Monthly invoice summary — 1st of each month at 7am

On Complete

The task fires when another task finishes. This is how you build task chains — multi-step agent pipelines where each step hands off to the next.
Task A completes  ──►  Task B fires  ──►  Task C fires
Configuration:
  • Source task — which task to watch
  • Fire when — Succeeds / Fails / Either
  • Pass upstream output — inject the previous task’s response into this task’s context
When to use it:
  • Building a research → edit → publish pipeline
  • Handling errors: run a fallback agent when the main task fails
  • Sequential steps where each stage needs the previous one’s output
Common examples:
  • Researcher → Editor → Publisher — three agents, each improving the previous output
  • Monitor → Alert — a watcher task fails, fires an incident-reporting agent
  • Fetch → Format → Send — gather data, format it, post to Slack
Chains are limited to 10 steps. One task can fan out to at most 5 downstream tasks. Cycles (A → B → A) are blocked at save time.

Integrations

Trigger a task when something happens in a connected app — a new issue in Linear, a payment in Stripe, a webhook from any connected tool. Available integrations:
IntegrationExample triggers
LinearIssue created, status changed, comment added, assigned
StripePayment succeeded, subscription cancelled, checkout completed
Connected appsAny event from apps connected via your workspace integrations
Connect an integration from your workspace settings. Once connected, its trigger events appear in the trigger picker.
Common examples:
  • New Linear issue → agent triages it, adds labels, and posts a summary to #engineering
  • Payment failed → agent drafts a customer recovery email
  • Subscription cancelled → agent logs context and notifies the team in #revenue

Choosing the right trigger

You want to…Use
Run the agent whenever you feel like itManual
Run automatically every morningSchedule — daily
Run on a repeating cycleSchedule — hourly / weekly / monthly
React to another task finishingOn Complete
React to an external event (Linear issue, Stripe payment)Integration trigger
Test an agent before automating itManual first, then switch

Back to Tasks

Learn how tasks connect to agents and how to set up your first automation