Technical Component Catalog

Open source libraries recommended for implementing ATF, ranked by pillar and maturity level.

Technology-agnostic patterns · Phased implementation stacks · Build order guidance

Agent Level Legend

🟢 Intern🟡 Junior🟠 Senior🔴 Principal
🔐

Identity

Who are you?

#LibraryMaturityAI-ReadyEaseLevelsDescription
1Authlib⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐☆🟢🟡🟠🔴Full-featured OAuth2/OIDC framework. Python-native, excellent documentation.
2PyJWT⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐⭐🟢🟡🟠Lightweight JWT handling. Perfect for token-based identity.
3Casbin⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐☆🟡🟠🔴RBAC/ABAC authorization. Wide language support.
4Python-FIDO2⭐⭐⭐⭐☆⭐⭐⭐☆☆⭐⭐⭐☆☆🟠🔴FIDO2/WebAuthn for hardware-backed authentication.
5PyOTP⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐⭐⭐🟠🔴Time-based OTP for additional verification flows.
6FastAPI-Security⭐⭐⭐⭐☆⭐⭐⭐⭐☆⭐⭐⭐⭐⭐🟢🟡🟠Built-in FastAPI auth utilities with rate limiting.
Intern 🟢

Start with PyJWT for simple API key validation. Identity primarily for audit trail.

Junior 🟡

Add Authlib for OAuth flows. Human approval requires clear identity chain.

Senior 🟠

Implement Casbin for role-based permissions. Actions require scoped authorization.

Principal 🔴

Full identity stack with PyOTP/FIDO2 for high-value operations.

👁️

Behavior

What are you doing?

#LibraryMaturityAI-ReadyEaseLevelsDescription
1LangSmith⭐⭐⭐⭐☆⭐⭐⭐⭐⭐⭐⭐⭐⭐☆🟢🟡🟠🔴Purpose-built for LLM/agent observability. Prompt chains, telemetry, trace visualization.
2OpenInference⭐⭐⭐⭐☆⭐⭐⭐⭐⭐⭐⭐⭐⭐☆🟢🟡🟠🔴Lightweight observability with OpenTelemetry support.
3PyOD + structlog⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐☆🟡🟠🔴30+ anomaly algorithms combined with structured logging.
4scikit-learn⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐⭐⭐🟢🟡🟠IsolationForest, OneClassSVM. Reliable anomaly detection starting point.
5Prophet⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐⭐☆🟡🟠🔴Meta's time series forecasting for pattern detection.
6River⭐⭐⭐☆☆⭐⭐⭐⭐☆⭐⭐⭐☆☆🟠🔴Online/streaming anomaly detection. Real-time, memory efficient.
Intern 🟢

LangSmith or OpenInference for basic observability. Log everything, alert on nothing.

Junior 🟡

Add anomaly scoring with PyOD. Flag suspicious patterns for human review.

Senior 🟠

Real-time monitoring with threshold-based alerts. Actions trigger immediate notification.

Principal 🔴

Full behavioral baseline with drift detection. Autonomous escalation of edge cases.

📊

Data Governance

What are you eating? What are you serving?

#LibraryMaturityAI-ReadyEaseLevelsDescription
1Microsoft Presidio⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐☆🟡🟠🔴Enterprise PII/PHI detection + anonymization. 30+ recognizers.
2Great Expectations⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐☆☆🟠🔴Best-in-class data validation, testing, and profiling.
3Pydantic⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐🟢🟡🟠🔴Data validation with type hints. Essential for agent I/O.
4Guardrails AI⭐⭐⭐⭐☆⭐⭐⭐⭐⭐⭐⭐⭐⭐☆🟡🟠🔴Output validation for LLMs. Schema enforcement, content filtering.
5spaCy + custom NER⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐☆☆🟠🔴Train custom entity recognition for domain-specific data.
6detect-secrets⭐⭐⭐⭐☆⭐⭐⭐☆☆⭐⭐⭐⭐☆🟢🟡🟠🔴Prevents secrets in code/text. Essential layer.
Intern 🟢

Pydantic for input validation. Basic regex patterns for obvious PII.

Junior 🟡

Add Presidio for comprehensive PII scanning. Guardrails AI for output validation.

Senior 🟠

Full data pipeline validation with Great Expectations. Automated remediation.

Principal 🔴

Custom NER models for domain-specific data. Full DLP integration.

🧱

Segmentation

Where can you go?

#LibraryMaturityAI-ReadyEaseLevelsDescription
1Open Policy Agent (OPA)⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐☆☆🟠🔴Industry standard policy-as-code. Declarative, testable, auditable.
2Casbin⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐☆🟡🟠🔴RBAC/ABAC enforcement. Simpler than OPA, multiple models.
3Kong Gateway⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐☆☆🟠🔴API gateway with plugin architecture for policy enforcement.
4py-abac⭐⭐⭐☆☆⭐⭐⭐☆☆⭐⭐⭐⭐☆🟡🟠Attribute-based policies. Fine-grained agent role control.
5Traefik⭐⭐⭐⭐☆⭐⭐⭐☆☆⭐⭐⭐⭐☆🟡🟠Simpler reverse proxy. Good for quick setups.
6Flask-Limiter / slowapi⭐⭐⭐⭐☆⭐⭐⭐☆☆⭐⭐⭐⭐⭐🟢🟡Rate limiting utility. Essential for resource usage control.
Intern 🟢

Simple allowlists in config. Read-only access to predefined resources.

Junior 🟡

Casbin for role-based boundaries. Human approval required for expansion.

Senior 🟠

OPA policies define action scope. Automatic enforcement with notification.

Principal 🔴

Full policy-as-code with dynamic boundaries. Agent negotiates access within governance limits.

🚨

Incident Response

What if you go rogue?

#LibraryMaturityAI-ReadyEaseLevelsDescription
1TheHive + Cortex⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐☆☆☆🔴Complete IR platform. Full incident management, SOC workflows.
2py-breaker + Sentry⭐⭐⭐⭐☆⭐⭐⭐⭐☆⭐⭐⭐⭐☆🟡🟠🔴Circuit breakers + error tracking. Production-proven.
3tenacity⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐⭐⭐🟢🟡🟠Retry with exponential backoff. Essential utility.
4Prometheus + Alertmanager⭐⭐⭐⭐⭐⭐⭐⭐☆☆⭐⭐⭐☆☆🟠🔴Time-series monitoring + alerting for baselines and agent alerts.
5structlog / Loguru⭐⭐⭐⭐⭐⭐⭐⭐⭐☆⭐⭐⭐⭐⭐🟢🟡🟠🔴Structured logging. Foundational for diagnostics and audit.
6ntfy.sh / PagerDuty⭐⭐⭐⭐☆⭐⭐⭐☆☆⭐⭐⭐⭐⭐🟡🟠🔴Notification/escalation systems for IR workflow integration.
Intern 🟢

Structured logging + tenacity for retry. Incidents are informational only.

Junior 🟡

Circuit breakers halt processing pending human review.

Senior 🟠

Automated containment (circuit breaker + kill switch). Post-action notifications.

Principal 🔴

Full IR integration with TheHive/Cortex. Self-diagnosis and escalation.

Recommended Implementation Stacks

Phased stack recommendations from MVP to enterprise

MVP Stack (Phase 1)

Intern / Junior Agents
2–3 weeks📦 ~15 packages🔧 Low complexity
IdentityPyJWT
Behaviorstructlog + LangSmith (or OpenInference)
Data GovernancePydantic + regex patterns
SegmentationSimple allowlists in config
Incident Responsetenacity + py-breaker + logging

Production Stack (Phase 2)

Junior / Senior Agents
4–6 weeks📦 ~30 packages🔧 Medium complexity
IdentityPyJWT + Authlib + Casbin
BehaviorLangSmith + PyOD (IsolationForest) + structlog
Data GovernanceMicrosoft Presidio + Pydantic + Guardrails AI
SegmentationCasbin + rate limiting
Incident Responsepy-breaker + Sentry + ntfy.sh

Enterprise Stack (Phase 3)

Senior / Principal Agents
8–12 weeks📦 ~50+ packages🔧 High complexity
IdentityAuthlib + PyOTP/FIDO2 + Casbin
BehaviorLangSmith + PyOD + River (streaming) + spaCy + structlog
Data GovernancePresidio + Great Expectations + custom NER + Guardrails AI
SegmentationOpen Policy Agent + Kong
Incident Responsepy-breaker + Sentry + TheHive/Cortex + Prometheus