Linear Trigger

Triggers a workflow on Linear webhooks (issues, comments, projects, cycles). Linear webhooks are automatically registered on publish via the webhookCreate GraphQL mutation.

Requires a Linear connection.

Configuration

Field	Description	Notes
Connection	Linear connection	Required
Resource Types	Which Linear resources fire the webhook	Issue, Comment, Project, Cycle, IssueLabel, Reaction

Output

Field	Description
body.action	create, update, or remove
body.type	The resource type (Issue, Comment, etc.)
body.data	The full resource payload
headers.Linear-Signature	HMAC signature (already verified before the workflow runs)

How It Works

1. On publish, the backend generates a random 32-byte signing secret and calls Linear's webhookCreate mutation with it, your workflow's public URL, and the configured resource types.
2. Linear includes Linear-Signature: <hex digest> on every delivery. The handler verifies hex-encoded HMAC-SHA256 of the raw body using the stored secret.
3. On unpublish/delete the corresponding webhookDelete mutation fires.

Caveats

• The webhook is scoped to all public teams in the workspace. Filter downstream if you only care about a specific team.
• Re-publishing the workflow creates a new webhook with a new secret. The old webhook is deleted.