Post comments to Linear issues from webhooks

Your monitoring system alerts you, your build pipeline reports a test failure, or your AI agent finds an insight - but adding a comment to the Linear issue requires a manual step. Use a webhook to automatically post updates as comments, keeping your team in the loop without interrupting their flow.

Trigger

Webhook received

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

Linear logo

Action

Create a comment

Creates a new comment on a specified linear issue.

Why this helps

Notifications about work end up in email or Slack, but the core issue in Linear doesn't get updated. Teams miss critical information because updates weren't recorded where they do the work.

  • Automatically post updates and alerts as issue comments
  • Keep all issue context in one place
  • Integrate external systems without manual notification handling
  • Enable automated reporting and tracking
  • Reduce missed information from scattered notifications

Setup

Build it in a few focused steps.

  • 1Connect Linear to Notis.
  • 2Create an automation and tell Notis: 'When a webhook request arrives, find the specified Linear issue and add a comment with the provided text.'
  • 3Select 'Webhook Trigger' and Notis generates your unique webhook URL.
  • 4Send webhook payloads with issue ID and comment text from your external tool.
  • 5Test by triggering a webhook and verifying the comment appears in Linear.

Questions about this workflow

Can I format comments with markdown?

Yes. Linear supports markdown, so include bold, links, and lists in your webhook comments.

Can I include images or attachments in webhook comments?

You can include image URLs and links. For file attachments, use a separate webhook to attach files directly.

What if the issue ID in the webhook is wrong?

Notis skips it or adds the comment to a default issue. You can configure error handling during setup.

Can I tag people in webhook comments?

Yes. Include @name syntax and Notis will mention them in the Linear comment.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Asana to Linear. A trigger fires from one place; an action lands in another.

Asana logo

Asana triggers

Linear logo

Linear actions

Attachment Added to Task

Triggers when an attachment is added to a task.

TriggerInstant

Create linear attachment

Creates a new attachment and associates it with a specific, existing linear issue.

ActionInstant

New Comment on Task

Triggers when a comment is added to a task in a project.

TriggerInstant

Create a comment

Creates a new comment on a specified linear issue.

ActionInstant

New Task Created

Triggers when a new task is created in a project.

TriggerInstant

Create linear issue

Creates a new issue in a specified linear project and team, requiring a title and description, and allowing for optional properties like assignee, state, priority, cycle, and due date.

ActionInstant

Task Moved to Section

Triggers when a task is moved to a section in a project.

TriggerInstant

Get create issue default params

Fetches a linear team's default issue estimate and state, useful for pre-filling new issue forms.

ActionInstant

Tag Added to Task

Triggers when a tag is added to a task. Note: Asana's event structure is inverted for tag events — the resource is the task and the parent is the tag. So parent.gid gives the tag GID.

TriggerInstant

Create a label

Creates a new label in linear for a specified team, used to categorize and organize issues.

ActionInstant

Task Updated

Triggers when a task is updated in a project.

TriggerInstant

Delete issue

Archives an existing linear issue by its id, which is linear's standard way of deleting issues; the operation is idempotent.

ActionInstant

Get all teams

Retrieves all teams from the linear workspace without requiring any parameters.

ActionInstant

Download issue attachments

Downloads a specific attachment from a linear issue; the `file name` must include the correct file extension.

ActionInstant

Connect any two apps with Notis in the middle.

Not just Asana and Linear. Any combination from 985+ integrations.

When this happens · Trigger

Do this · Action

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