microsoft--agent-framework/python/scripts/sample_validation

Sample Validation System

An AI-powered workflow system for validating Python samples by discovering them, creating a nested batched workflow, and producing a report.

Architecture

┌─────────────────────────────────────────────────────────────────────┐
│                    Sample Validation Workflow                        │
│                    (Sequential - 4 Executors)                        │
└─────────────────────────────────────────────────────────────────────┘
                                   │
        ┌──────────────────────────┼──────────────────────────┐
        ▼                          ▼                          ▼
┌───────────────┐        ┌─────────────────┐        ┌─────────────────┐
│   Discover    │   ──►  │ Create Dynamic  │   ──►  │ Run Nested      │
│   Samples     │        │ Batched Flow    │        │ Workflow        │
└───────────────┘        └─────────────────┘        └─────────────────┘
        │                          │                          │
        ▼                          ▼                          ▼
  List[SampleInfo]          WorkflowCreationResult      ExecutionResult
                        (workers + coordinator)              │
                                                             ▼
                                                    ┌─────────────────┐
                                                    │ Generate Report │
                                                    └─────────────────┘
                                                             │
                                                             ▼
                                                          Report

Nested Workflow Strategy

┌─────────────────────────────────────────────────────────────────────┐
│             Nested Batched Workflow (coordinator + workers)          │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │ WorkflowBuilder + fan-out/fan-in edges                      │   │
│  │ - Coordinator dispatches tasks in bounded batches           │   │
│  │ - Worker executors run GitHub Copilot agents               │   │
│  │ - Collector aggregates per-sample RunResult messages       │   │
│  │ - Max in-flight workers set by --max-parallel-workers      │   │
│  └─────────────────────────────────────────────────────────────┘   │
└─────────────────────────────────────────────────────────────────────┘

File Structure

scripts/
├── sample_validation/
│   ├── __init__.py              # Package exports
│   ├── README.md                # This file
│   ├── models.py                # Data classes
│   │   ├── SampleInfo           # Discovered sample metadata
│   │   ├── RunResult            # Execution result
│   │   └── Report               # Final validation report
│   ├── discovery.py             # Sample discovery
│   │   ├── discover_samples()   # Finds all .py files
│   │   └── DiscoverSamplesExecutor
│   ├── report.py                # Report generation
│   │   ├── generate_report()    # Create Report from results
│   │   ├── save_report()        # Write to markdown/JSON
│   │   ├── print_summary()      # Console output
│   │   └── GenerateReportExecutor
│   ├── create_dynamic_workflow_executor.py # Coordinator, workers, collector, CreateConcurrentValidationWorkflowExecutor
│   ├── run_dynamic_validation_workflow_executor.py # RunDynamicValidationWorkflowExecutor
│   └── workflow.py              # Workflow assembly entrypoint
├── __main__.py                  # CLI entry point

Dependencies

Required

• agent-framework - Core workflow and agent functionality
• agent-framework-github-copilot - GitHub Copilot agent integration

Optional

• GITHUB_COPILOT_MODEL to override default Copilot model selection.

Environment Variables

No required environment variables. Optional:

Variable	Description	Required
GITHUB_COPILOT_MODEL	Copilot model override	No
GITHUB_COPILOT_TIMEOUT	Copilot request timeout (seconds)	No

Usage

Basic Usage

# Validate all samples
uv run python -m sample_validation

# Validate specific subdirectory
uv run python -m sample_validation --subdir 03-workflows

# Save reports to files
uv run python -m sample_validation --save-report --output-dir ./reports

Configuration Options

uv run python -m sample_validation [OPTIONS]

Options:
  --subdir TEXT                Subdirectory to validate (relative to samples/)
  --output-dir TEXT            Report output directory (default: ./_sample_validation/reports)
  --max-parallel-workers INT   Max in-flight workers per batch (default: 10)
  --save-report                      Save reports to files

Examples

# Quick validation of a small directory
uv run python -m sample_validation --subdir 03-workflows/_start-here

# Limit parallel workers for large sample sets
uv run python -m sample_validation --subdir 02-agents --max-parallel-workers 8

# Save report artifacts
uv run python -m sample_validation --save-report

How It Works

1. Discovery

Walks the samples directory and finds all .py files that:

• Don't start with _ (excludes private files)
• Aren't in __pycache__ directories
• Aren't in directories starting with _ (excludes _sample_validation)

2. Dynamic Workflow Creation

Creates a nested workflow with:

• A coordinator executor
• One worker executor per discovered sample
• A collector executor

3. Nested Workflow Execution

The coordinator sends initial work to the first max_parallel_workers workers. As each worker finishes, it notifies the coordinator, which dispatches the next queued sample. Workers also send result items to the collector, which emits the final ExecutionResult once all samples are processed.

4. Report Generation

Produces:

• Console summary - Pass/fail counts with emoji indicators
• Markdown report - Detailed results grouped by status
• JSON report - Machine-readable for CI integration

Report Status Codes

Status	Label	Description
SUCCESS	[PASS]	Sample ran to completion with exit code 0
FAILURE	[FAIL]	Sample did not complete successfully (non-zero exit code)
MISSING_SETUP	[MISSING_SETUP]	Sample skipped due to missing setup

Troubleshooting

Agent output parsing errors

If an agent returns non-JSON content, that sample is marked as FAILURE with parser details in the report.

GitHub Copilot authentication or CLI issues

Ensure GitHub Copilot is authenticated in your environment and the Copilot CLI is available.