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[docs] docs: remove duplicated code block and redundant paragraph in concurrency reference #28194

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pelikhan merged 1 commit into from
Apr 24, 2026
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[docs] docs: remove duplicated code block and redundant paragraph in concurrency reference #28194

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13 changes: 1 addition & 12 deletions docs/src/content/docs/reference/concurrency.md
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Expand Up @@ -23,11 +23,9 @@ Workflow-level concurrency groups include the workflow name plus context-specifi

This ensures workflows on different issues, PRs, or branches run concurrently without interference.

For label-triggered workflows, the concurrency group includes `github.event.label.name` as an additional segment. This prevents cross-label cancellation when multiple labels are added to the same PR or issue simultaneously: each label event gets its own distinct group, so workflows triggered by different labels do not cancel each other.

## Per-Engine Concurrency

The default per-engine pattern `gh-aw-{engine-id}` ensures only one agent job runs per engine across all workflows, preventing AI resource exhaustion. The group includes only the engine ID and `gh-aw-` prefix - workflow name, issue/PR numbers, and branches are excluded.
The default per-engine pattern `gh-aw-{engine-id}` ensures only one agent job runs per engine across all workflows, preventing AI resource exhaustion. The group includes only the engine ID and `gh-aw-` prefix — workflow name, issue/PR numbers, and branches are excluded.

```yaml wrap
jobs:
Expand Down Expand Up @@ -107,13 +105,6 @@ concurrency:

This generates a unique job-level concurrency group per dispatched run, preventing fan-out cancellations while preserving the per-workflow concurrency group at the workflow level.

Example usage:

```yaml wrap
concurrency:
job-discriminator: ${{ inputs.finding_id }}
```

Common expressions:

| Scenario | Expression |
Expand All @@ -132,7 +123,5 @@ Common expressions:

## Related Documentation

- [AI Engines](/gh-aw/reference/engines/) - Engine configuration and capabilities
- [Frontmatter](/gh-aw/reference/frontmatter/) - Complete frontmatter reference
- [Workflow Structure](/gh-aw/reference/workflow-structure/) - Overall workflow organization
- [Safe Outputs](/gh-aw/reference/safe-outputs/) - Safe output processing and job configuration
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