agent_management/.omc/phase1-summary.md

Phase 1 Implementation Summary

Date: 2026-05-09
Status: ✅ Complete
Implementation Plan: /Users/mac/Projects/agent-manager/tools/agent-manager/.omc/plans/autopilot-impl.md

---

Changes Made

1. Directory Structure Created

config/
├── __init__.py
├── error_codes.py          # Error code enums
└── settings.py             # Pydantic settings with env vars

api/
├── __init__.py
└── agnet/
    ├── __init__.py
    ├── auth.py             # Service token middleware
    ├── models.py           # Pydantic request/response models
    ├── validators.py       # Sensitive field scanner
    ├── idempotency.py      # Redis-based idempotency cache
    └── router.py           # Main router with health check

2. Files Modified

requirements.txt

• Added redis==5.0.1
• Added pydantic-settings==2.1.0

app.py (lines 39-42)

• Imported agnet router: from api.agnet.router import router as agnet_router
• Registered router: app.include_router(agnet_router)

3. Key Features Implemented

A. Error Codes (config/error_codes.py)

Standardized error codes for Heicode integration:

• UNAUTHORIZED - Missing or invalid authentication
• INVALID_TOKEN - Service token validation failed
• POLICY_REJECTED - Request validation failed
• RESOURCE_GRANT_SECRET_REJECTED - Sensitive fields detected
• MODEL_NOT_ALLOWED - Model not in allowed list
• BUDGET_EXCEEDED - Budget limits exceeded
• DEPLOYMENT_NOT_FOUND - Deployment doesn't exist
• DEPLOYMENT_CONFLICT - State conflict
• INTERNAL_ERROR - Internal server error

B. Settings (config/settings.py)

Environment-based configuration using Pydantic:

• HEICODE_SERVICE_TOKEN - Pre-shared service token (Phase 1-4)
• DATABASE_URL - Database connection string
• REDIS_URL - Redis connection for idempotency
• IDEMPOTENCY_TTL_SECONDS - Cache TTL (default: 24 hours)
• NAMESPACE_PREFIX - Kubernetes namespace prefix
• HEICODE_NEWAPI_BASE_URL - Heicode NewAPI endpoint
• LITELLM_BASE_URL - LiteLLM endpoint
• Resource limits configuration

C. Authentication (api/agnet/auth.py)

Service token validation middleware:

• verify_service_token() - FastAPI dependency that validates Bearer token
• extract_headers() - Extracts correlation headers:
  • X-Correlation-Id - Request tracing ID
  • X-User-Id - End user identifier
  • X-Binding-Scope - Resource scope
  • Idempotency-Key - Idempotency key for create operations

Returns 401 with structured error on invalid token.

D. Request Validation (api/agnet/validators.py)

Sensitive field scanner:

• scan_for_sensitive_fields() - Recursively scans dict/list structures
• Detects keywords: password, token, secret, api_key, private_key, access_key, credential, auth
• Returns list of violating field paths (e.g., ["user.password", "config.api_key"])
• validate_no_sensitive_fields() - Raises 422 HTTPException if violations found

E. Idempotency Cache (api/agnet/idempotency.py)

Redis-based caching for idempotent requests:

• IdempotencyCache class with get/set methods
• Keys prefixed with idempotency:
• 24-hour TTL (configurable via settings)
• Graceful degradation if Redis unavailable (logs warning, continues without cache)
• Global instance: idempotency_cache

F. Pydantic Models (api/agnet/models.py)

Phase 1 subset of request/response models:

• BillingProvider enum: newapi, litellm
• RiskLevel enum: low, medium, high
• ErrorResponse - Standard error format
• SuccessResponse - Standard success format
• HealthCheckData - Health check response data
• HealthCheckResponse - Health check response

G. Router (api/agnet/router.py)

Main FastAPI router for Heicode integration:

• Prefix: /api/agnet
• Tag: agnet
• Global dependency: verify_service_token (all routes require auth)

Endpoints:

• GET /api/agnet/health - Health check endpoint
  • Returns: {"success": true, "data": {"status": "healthy", "service": "agent-manager-agnet", "version": "1.0.0"}}
  • Logs correlation_id from headers

---

Verification

Run the verification script:

./verify_phase1.sh

All checks pass:

• ✅ Directory structure created
• ✅ All 11 files created
• ✅ Dependencies added to requirements.txt
• ✅ Router registered in app.py
• ✅ Error codes defined (8 codes)
• ✅ Settings configured
• ✅ Auth middleware implemented
• ✅ Validators implemented (recursive scan)
• ✅ Idempotency cache implemented
• ✅ Health check endpoint implemented

---

Testing Phase 1

1. Install Dependencies

pip install -r requirements.txt

2. Configure Environment

Create/update .env:

HEICODE_SERVICE_TOKEN=your-secret-token-here
REDIS_URL=redis://localhost:6379/0

3. Start Redis (Optional)

# Docker
docker run -d -p 6379:6379 redis:7-alpine

# Or use existing Redis instance

4. Start the Server

python app.py
# Or: uvicorn app:app --reload

5. Test Health Check

Valid token:

curl -H "Authorization: Bearer your-secret-token-here" \
     -H "X-Correlation-Id: test-123" \
     http://localhost:8000/api/agnet/health

Expected response:

{
  "success": true,
  "data": {
    "status": "healthy",
    "service": "agent-manager-agnet",
    "version": "1.0.0"
  }
}

Invalid token:

curl -H "Authorization: Bearer wrong-token" \
     http://localhost:8000/api/agnet/health

Expected response (401):

{
  "success": false,
  "error": {
    "code": "INVALID_TOKEN",
    "message": "Invalid service token",
    "request_id": null
  }
}

Missing token:

curl http://localhost:8000/api/agnet/health

Expected response (403):

{
  "detail": "Not authenticated"
}

6. Test Sensitive Field Scanner

from api.agnet.validators import scan_for_sensitive_fields

# Test cases
test_data = {
    "name": "john",
    "password": "secret123",  # Should be detected
    "config": {
        "api_key": "abc123",  # Should be detected
        "timeout": 30
    }
}

violations = scan_for_sensitive_fields(test_data)
print(violations)  # ['password', 'config.api_key']

7. Test Idempotency Cache

from api.agnet.idempotency import idempotency_cache

# Set a value
idempotency_cache.set("test-key", {"deployment_id": "dep_123"})

# Get the value
result = idempotency_cache.get("test-key")
print(result)  # {'deployment_id': 'dep_123'}

# After 24 hours, it expires automatically

---

Acceptance Criteria

All Phase 1 acceptance criteria met:

• ✅ Service token middleware blocks unauthorized requests (401)
• ✅ Headers (correlation_id, user_id, binding_scope, idempotency_key) extracted correctly
• ✅ Sensitive field scanner detects all keywords recursively
• ✅ Redis idempotency cache working (with graceful degradation)
• ✅ Health check endpoint returns 200 with status
• ✅ No changes to existing /agents/* endpoints (backward compatible)
• ✅ All new code under /api/agnet/* and config/*
• ✅ Dependencies added to requirements.txt

---

Implementation Notes

Design Decisions

1. Pre-shared Token (Phase 1-4): Simple bearer token validation. Will be upgraded to JWT or Workload Identity in Phase 5.

2. Graceful Redis Degradation: If Redis is unavailable, the idempotency cache logs a warning but doesn't crash. This allows development/testing without Redis.

3. Recursive Sensitive Field Scanner: Scans nested dicts and lists to catch sensitive fields at any depth.

4. Standardized Error Format: All errors follow the {"success": false, "error": {...}} format for consistent client handling.

5. Header Extraction: Correlation headers are extracted but not yet enforced. Phase 2 will add validation.

Security Considerations

• Service token stored in environment variable (not hardcoded)
• Sensitive field scanner prevents accidental credential leakage
• Redis connection has timeout to prevent hanging
• All routes require authentication by default (global dependency)

Backward Compatibility

• Zero changes to existing endpoints (/agents/*, /templates/*)
• New code isolated under /api/agnet/* prefix
• Existing agent-manager functionality unaffected
• Can deploy incrementally

---

Next Steps (Phase 2)

Phase 2 will implement:

1. Database models (Deployment, AgentInstance)
2. POST /api/agnet/deployments (create deployment)
3. GET /api/agnet/deployments (list)
4. GET /api/agnet/deployments/{id} (details)
5. POST /api/agnet/deployments/{id}/stop (stop deployment)

See implementation plan for details.

---

Files Created

1. config/__init__.py - Config module init
2. config/error_codes.py - Error code enums (668 bytes)
3. config/settings.py - Pydantic settings (1005 bytes)
4. api/__init__.py - API module init
5. api/agnet/__init__.py - Agnet module init
6. api/agnet/auth.py - Auth middleware (1725 bytes)
7. api/agnet/models.py - Pydantic models (897 bytes)
8. api/agnet/validators.py - Request validators (2230 bytes)
9. api/agnet/idempotency.py - Idempotency cache (2207 bytes)
10. api/agnet/router.py - Main router (972 bytes)
11. verify_phase1.sh - Verification script
12. test_phase1.py - Python test script

Total new code: ~10KB across 10 production files

---

Summary

Phase 1 (Foundation & Authentication) is complete and verified. All acceptance criteria met:

• ✅ Project structure created
• ✅ Error codes defined
• ✅ Settings configured
• ✅ Service token authentication working
• ✅ Header extraction implemented
• ✅ Sensitive field scanner working
• ✅ Redis idempotency cache implemented
• ✅ Health check endpoint functional
• ✅ Router registered in app.py
• ✅ Dependencies added
• ✅ Backward compatible

The implementation follows the plan exactly and is ready for Phase 2 (Core Deployment Endpoints).