How to add comment in Linear

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Issue ID issueId	string	Required	Issue ID. Example: issue-uuid
Comment body	string	Required	Comment text (supports Markdown)

Sample request

{
  "issueId": "e.g. issue-uuid",
  "body": "e.g. Hi there, thanks for reaching out."
}

Returns

{
  "data": {
    "commentCreate": {
      "comment": {
        "id": "uuid",
        "body": "Comment text",
        "createdAt": "2025-01-15T12:00:00.000Z"
      },
      "success": true
    }
  }
}

Use these fields in downstream nodes for routing, logging, or error handling.

FAQ

Questions about Add Comment.

What does the Add Comment action do in Linear?

Adds a comment to a Linear issue with optional Markdown formatting. Used for automation activity logs, AI summary notes, or status broadcasts.

What inputs does Add Comment require?

Required: Issue ID, Comment. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Linear returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Add Comment support batch operations?

Yes. Run Add Comment inside a Loop node to process arrays. TinyCommand handles Linear's rate limits automatically so you don't have to throttle manually.

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