Function botIsolatedConcurrencyKey

pkg/workflow/concurrency.go:192–202

botIsolatedConcurrencyKey builds a ${{ ... }} concurrency-group expression that routes GitHub App bot-triggered runs to a unique github.run_id key, preventing passive bot-authored comment events from colliding with the primary run's group. When contains(github.actor, '[bot]') is true, the expression

(primaryParts []string, tailParts []string, hasItemNumber bool)

// When contains(github.actor, '[bot]') is true, the expression short-circuits to
// github.run_id so that bot-triggered runs never share a group with human runs.
func botIsolatedConcurrencyKey(primaryParts []string, tailParts []string, hasItemNumber bool) string {
	parts := make([]string, 0, safeAllocationCapacity(len(primaryParts), len(tailParts), 2))
	// Prepend the bot-actor isolation check: bot runs always get a unique key
	parts = append(parts, "contains(github.actor, '[bot]') && github.run_id")
	parts = append(parts, primaryParts...)
	if hasItemNumber {
		parts = append(parts, "inputs.item_number")
	}
	parts = append(parts, tailParts...)
	return "${{ " + strings.Join(parts, " || ") + " }}"
}

// hasIssueCommentTrigger returns true when the workflow has any trigger that uses
// issue_comment events: explicit issue_comment, slash_command, or command triggers.