ActionGitHubUpdated September 2026

How do I post a comment on a GitHub issue or PR?

Short answer: You can create comment in GitHub by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the GitHub Create Comment action to a workflow, map its 4 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Create Comment in GitHub — start free All 23 GitHub actions

Create Comment in GitHub — start free

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
Repository Owner owner	string	Required	GitHub repository owner — the user or organization login (the part before / in owner/repo URLs).
Repository Name repo	string	Required	GitHub repository name — the part after / in owner/repo URLs. Not the full URL.
Issue or PR Number issue_number	string	Required	GitHub issue number — the integer shown after # in the issue URL (per-repo, not global).
Comment Body body	string	Required	Comment text (supports GitHub Markdown)

Sample request

{
  "owner": "e.g. acme-corp",
  "repo": "e.g. my-project",
  "issue_number": "e.g. 42",
  "body": "e.g. Looks like this is related to #38. Investigating..."
}

Returns

{
  "id": 1,
  "body": "Looks like this is related to #38.",
  "user": {
    "login": "johndoe"
  },
  "html_url": "https://github.com/acme-corp/my-project/issues/42#issuecomment-1",
  "created_at": "2025-01-15T12:00:00Z"
}

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

Triggered by

Apps that pair well as the trigger for Create Comment.

Any of these apps can fire this action as part of a workflow.

Google Sheets → GitHub

2 Google Sheets triggers

HubSpot → GitHub

18 HubSpot triggers

FAQ

Questions about Create Comment.

What does the Create Comment action do in GitHub?

Adds a comment to a GitHub issue or pull request. Used for AI review summaries, build-status pings, or status broadcasts from CI/CD.

What inputs does Create Comment require?

Required: Repository Owner, Repository Name, Issue or PR Number, Comment Body. 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 GitHub returns an error?

The run history shows the failed step with its input and the error message GitHub returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Create Comment support batch operations?

Run Create Comment inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within GitHub's rate limits.

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