Problem

track_progress: true fails when the workflow is triggered by a pull_request: [labeled] event:

Error: Action failed with error: track_progress for pull_request events is only supported for actions: opened, synchronize, ready_for_review, reopened. Current action: labeled

Use case

Using labels as a manual trigger for Claude reviews is a valid and common pattern. Instead of running the review on every PR event (opened, synchronize), the user adds a label (e.g., claude) to explicitly request a review when they want one. This avoids unnecessary API calls and gives the user control over when reviews happen.

Example workflow:

on:
  pull_request:
    types: [labeled]

jobs:
  claude-review:
    if: ${{ github.event.label.name == 'claude' }}
    steps:
      - uses: anthropics/claude-code-action@v1
        with:
          track_progress: true
          # ...

Why it should work

The labeled event payload contains the same pull_request.number and commit SHA as opened or synchronize. There's no technical reason track_progress can't function — it has all the information it needs to post progress updates on the PR.

Current workaround

Setting track_progress: false, which loses the progress indicator.

Expected behavior

track_progress: true should work with pull_request events of type labeled (and ideally unlabeled too, for completeness).