github.workflow-dispatch-select-runner

Select runner group for workflow_dispatch by routing rules

Select the runner group for a workflow_dispatch based on routing rules.

Routing priority:

1. inputs.runner_group_uuid → use that runner group directly
2. inputs.runner_labels → find runner group with matching labels
3. Fall back to repository/org default runner group

Inputs:

• organization_uuid: Organization UUID (public) (required)
• repository_full_name: Full name "owner/repo" (required)
• runner_group_uuid: Explicit runner group UUID (optional)
• runner_labels: Requested runner labels (optional, comma-separated)
• payload: Full webhook payload (for future: repo config defaults)

Outputs (terminal state_data):

• runner_group_uuid: Selected runner group UUID
• backend_type: RunnerBackendType of the selected group
• runner_group: Serialized runner group info (for workflow)
• dispatch_skipped: True when the org only has warm-pool-enabled (ec2_vm) groups — idle registered runners claim the job directly, no ephemeral launch needed
• skip_reason: "warm_pool_claims_directly" when dispatch_skipped is True

Overview

Property	Value
Workflow type	Atomic
Library	App-github
Version	1.0

Input Schema

Field	Type	Required	Default	Description
organization_uuid	string	Yes	—	Organization UUID (public)
repository_full_name	string	Yes	—	Repository full name
runner_group_uuid	uuid	No	—	Explicit runner group UUID
runner_labels	string	No	—	Requested runner labels
payload	dict	No	—	Full webhook payload
workflow_run_id	string	No	—	Parent DAG run ID

Output Schema

Field	Type	Required	Default	Description
runner_group_uuid	string	No	—	Selected runner group UUID
backend_type	string	No	—	Backend type of selected group
runner_group	dict	No	—	Serialized runner group info
dispatch_skipped	boolean	No	—	True when a warm-pool group claims the job directly (no dispatch)
skip_reason	string	No	—	Why the dispatch was skipped
organization_uuid	string	No	—	Organization UUID (public)
repository_full_name	string	No	—	Repository full name
runner_labels	string	No	—	Requested runner labels
payload	dict	No	—	Full webhook payload
workflow_run_id	string	No	—	Parent DAG run ID
failure_reason	string	No	—	—
failure_type	string	No	—	—
failed_action	string	No	—	—
failed_at_state	string	No	—	—
failed_step	string	No	—	—
failed_layer	string	No	—	—
error	string	No	—	—
error_type	string	No	—	—

States

State	Initial	Terminal	Success	Auto-advance	Description
pending	Yes	No	—	execute	—
completed	No	Yes	Yes	—	—
failed	No	Yes	No	—	—

State Diagram

Transitions

From	Action	To	Description
pending	execute	completed	—
* (any state)	fail	failed	—

API Usage

POST /api/workflows/start
Content-Type: application/json

{
  "workflow_type": "github.workflow-dispatch-select-runner",
  "initial_data": {
    "organization_uuid": "value",
    "repository_full_name": "value"
  }
}