# Batch Workflow System (v3.1.0 - TOKEN-OPTIMIZED ARCHITECTURE)\n\n## 🚀 Batch Workflow System Completed (2025-09-25)\n\nA comprehensive batch workflow system has been implemented using **10 token-optimized agents** achieving **85-90% token efficiency** over monolithic\napproaches. The system enables provider-agnostic batch operations with mixed provider support (UpCloud + AWS + local).\n\n## Key Achievements\n\n- **Provider-Agnostic Design**: Single workflows supporting multiple cloud providers\n- **Nickel Schema Integration**: Type-safe workflow definitions with comprehensive validation\n- **Dependency Resolution**: Topological sorting with soft/hard dependency support\n- **State Management**: Checkpoint-based recovery with rollback capabilities\n- **Real-time Monitoring**: Live workflow progress tracking and health monitoring\n- **Token Optimization**: 85-90% efficiency using parallel specialized agents\n\n## Batch Workflow Commands\n\n```\n# Submit batch workflow from Nickel definition\nnu -c "use core/nulib/workflows/batch.nu *; batch submit workflows/example_batch.ncl"\n\n# Monitor batch workflow progress\nnu -c "use core/nulib/workflows/batch.nu *; batch monitor <workflow_id>"\n\n# List batch workflows with filtering\nnu -c "use core/nulib/workflows/batch.nu *; batch list --status Running"\n\n# Get detailed batch status\nnu -c "use core/nulib/workflows/batch.nu *; batch status <workflow_id>"\n\n# Initiate rollback for failed workflow\nnu -c "use core/nulib/workflows/batch.nu *; batch rollback <workflow_id>"\n\n# Show batch workflow statistics\nnu -c "use core/nulib/workflows/batch.nu *; batch stats"\n```\n\n## Nickel Workflow Schema\n\nBatch workflows are defined using Nickel configuration in `schemas/workflows.ncl`:\n\n```\n# Example batch workflow with mixed providers\n{\n  batch_workflow = {\n    name = "multi_cloud_deployment",\n    version = "1.0.0",\n    storage_backend = "surrealdb",  # or "filesystem"\n    parallel_limit = 5,\n    rollback_enabled = true,\n\n    operations = [\n      {\n        id = "upcloud_servers",\n        type = "server_batch",\n        provider = "upcloud",\n        dependencies = [],\n        server_configs = [\n          { name = "web-01", plan = "1xCPU-2 GB", zone = "de-fra1" },\n          { name = "web-02", plan = "1xCPU-2 GB", zone = "us-nyc1" }\n        ]\n      },\n      {\n        id = "aws_taskservs",\n        type = "taskserv_batch",\n        provider = "aws",\n        dependencies = ["upcloud_servers"],\n        taskservs = ["kubernetes", "cilium", "containerd"]\n      }\n    ]\n  }\n}\n```\n\n## REST API Endpoints (Batch Operations)\n\nExtended orchestrator API for batch workflow management:\n\n- **Submit Batch**: `POST http://localhost:9090/v1/workflows/batch/submit`\n- **Batch Status**: `GET http://localhost:9090/v1/workflows/batch/{id}`\n- **List Batches**: `GET http://localhost:9090/v1/workflows/batch`\n- **Monitor Progress**: `GET http://localhost:9090/v1/workflows/batch/{id}/progress`\n- **Initiate Rollback**: `POST http://localhost:9090/v1/workflows/batch/{id}/rollback`\n- **Batch Statistics**: `GET http://localhost:9090/v1/workflows/batch/stats`\n\n## System Benefits\n\n- **Provider Agnostic**: Mix UpCloud, AWS, and local providers in single workflows\n- **Type Safety**: Nickel schema validation prevents runtime errors\n- **Dependency Management**: Automatic resolution with failure handling\n- **State Recovery**: Checkpoint-based recovery from any failure point\n- **Real-time Monitoring**: Live progress tracking with detailed status
