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The Learn–Teach–Master Framework A Lightweight Python Agent Framework for Observability-First Microservices

  • Writer: Mark Kendall
    Mark Kendall
  • 6 days ago
  • 6 min read


The Learn–Teach–Master Framework


A Lightweight Python Agent Framework for Observability-First Microservices



When people hear the phrase agent framework, they imagine autonomous AI loops, recursive reasoning engines, and black-box systems making unpredictable decisions.


That’s not what we’re building.


We’re building something far more disciplined.


We’re building a lightweight, deterministic Python agent framework for microservices observability — engineered for production environments where control, clarity, and traceability matter more than novelty.


This is the Learn–Teach–Master Framework.


And it’s built with plain Python.





Why We Built It



Modern microservices environments are complex:


  • Hundreds of distributed services

  • Logs in multiple systems

  • Metrics in Prometheus

  • Traces in OpenTelemetry

  • Alerts firing constantly

  • Continuous deployments



Observability platforms give us data.


But data is not understanding.


Engineers still have to:


  • Correlate metrics with logs

  • Interpret latency spikes

  • Analyze error trends

  • Explain outages

  • Summarize incidents

  • Translate technical findings into executive language



AI can help.


But we do not need autonomous AI chaos.


We need structured intelligence.





What Is the Learn–Teach–Master Framework?



It is a plain Python orchestration layer built inside a FastAPI microservice that:


  1. Learns from telemetry

  2. Teaches through explanation

  3. Masters patterns over time



It is not a heavyweight agent framework.


It is a controlled workflow engine.


Here is the execution model:

Client Request

      ↓

FastAPI Endpoint

      ↓

Agent Orchestrator (Python class)

      ↓

[1] Validate / Enrich Context

      ↓

[2] Routing / Decision Logic

      ↓

[3] Tool Execution (optional)

      ↓

[4] LiteLLM Call

      ↓

[5] Post-Processing

      ↓

Response

That’s it.


No hidden loops.

No framework lock-in.

No uncontrolled autonomy.


Just engineering.





The Core Architecture




1. FastAPI Boundary



This handles:


  • Authentication

  • Input validation

  • Rate limiting

  • Structured requests



The AI logic does not live here.


It lives below.





2. The Agent Orchestrator (Plain Python)



The orchestrator is simply structured code:

class AgentOrchestrator:


    def init(self, llm_provider, tools):

        self.llm = llm_provider

        self.tools = tools


    def handle(self, request):


        context = self._validate_and_enrich(request)


        if self._needs_tool(context):

            tool_data = self._execute_tools(context)

            context = self._merge(context, tool_data)


        response = self.llm.generate(context)


        return self._post_process(response)

This is not “AI magic.”


It is a workflow pipeline.





3. The Tool Layer (Observability Integrations)



The framework connects to:


  • Metrics APIs (Prometheus)

  • Logs (Elastic, Loki, Datadog)

  • Traces (OpenTelemetry)

  • Deployment history

  • Incident timelines

  • Health checks



The orchestrator calls these deterministically.


This ensures:


  • Reproducibility

  • Auditability

  • Traceable execution






4. LiteLLM Provider Layer



We use LiteLLM to abstract model providers:


  • OpenAI

  • Claude

  • Gemini

  • Local models

  • Bedrock



This gives us:


  • Vendor portability

  • Cost control

  • Model routing

  • Failover capability



The orchestration logic does not change if the model changes.





Why This Framework Is Different




It Is Deterministic



Every execution path is visible and observable.


You can diagram it.

You can log it.

You can measure it.


That matters in enterprise environments.





It Is Observability-First



The agent itself emits:


  • Timing metrics

  • Tool execution logs

  • LLM latency

  • Token usage

  • Health signals



The intelligence layer is observable.


We don’t just analyze systems — we instrument the analyzer.





It Is Vendor-Neutral



We are not locked into a specific LLM provider.


Switching models does not break architecture.


That is critical for long-term strategy.





It Aligns With Learn–Teach–Master



Learn

The framework gathers telemetry and context from distributed systems.


Teach

It explains what is happening in human-readable language.


Master

Over time, patterns, summaries, and structured outputs can be stored and reused, improving diagnosis speed and team knowledge.


This is not just AI assistance.


It is a system-level feedback loop.





Use Cases




Microservice Health Summaries



“Why is latency increasing in payment-service?”



Incident Narrative Generation



“What happened during yesterday’s outage?”



Deployment Impact Analysis



“Did the latest release correlate with error spikes?”



Executive Summaries



“Summarize the system health in non-technical language.”





Why We Did Not Use a Heavy Agent Framework



Most agent frameworks introduce:


  • Hidden state

  • Recursive loops

  • Autonomous tool selection

  • Complex debugging surfaces



That is risky in production observability systems.


We chose:


  • Control

  • Determinism

  • Traceability

  • Clarity



Because production systems demand discipline.





Final Thought



The Learn–Teach–Master Framework is not about chasing AI trends.


It is about building a lightweight intelligence layer for distributed systems.


It is plain Python.


It is modular.


It is observable.


And it is powerful enough for:


  • Enterprise observability platforms

  • TeamBrain knowledge systems

  • AI-assisted diagnostics



Sometimes the strongest framework is the one you build yourself — cleanly, intentionally, and with engineering discipline.




If you’d like next, I can also generate:


  • A strong header image concept for this article

  • A clean architectural diagram tailored for Wix

  • Or a follow-up article:


    “From Observability to Intelligence: The Future of AI in Microservices”



When people hear the phrase agent framework, they imagine autonomous AI loops, recursive reasoning engines, and black-box systems making unpredictable decisions.


That’s not what we’re building.


We’re building something far more disciplined.


We’re building a lightweight, deterministic Python agent framework for microservices observability — engineered for production environments where control, clarity, and traceability matter more than novelty.


This is the Learn–Teach–Master Framework.


And it’s built with plain Python.





Why We Built It



Modern microservices environments are complex:


  • Hundreds of distributed services

  • Logs in multiple systems

  • Metrics in Prometheus

  • Traces in OpenTelemetry

  • Alerts firing constantly

  • Continuous deployments



Observability platforms give us data.


But data is not understanding.


Engineers still have to:


  • Correlate metrics with logs

  • Interpret latency spikes

  • Analyze error trends

  • Explain outages

  • Summarize incidents

  • Translate technical findings into executive language



AI can help.


But we do not need autonomous AI chaos.


We need structured intelligence.





What Is the Learn–Teach–Master Framework?



It is a plain Python orchestration layer built inside a FastAPI microservice that:


  1. Learns from telemetry

  2. Teaches through explanation

  3. Masters patterns over time



It is not a heavyweight agent framework.


It is a controlled workflow engine.


Here is the execution model:

Client Request

      ↓

FastAPI Endpoint

      ↓

Agent Orchestrator (Python class)

      ↓

[1] Validate / Enrich Context

      ↓

[2] Routing / Decision Logic

      ↓

[3] Tool Execution (optional)

      ↓

[4] LiteLLM Call

      ↓

[5] Post-Processing

      ↓

Response

That’s it.


No hidden loops.

No framework lock-in.

No uncontrolled autonomy.


Just engineering.





The Core Architecture




1. FastAPI Boundary



This handles:


  • Authentication

  • Input validation

  • Rate limiting

  • Structured requests



The AI logic does not live here.


It lives below.





2. The Agent Orchestrator (Plain Python)



The orchestrator is simply structured code:

class AgentOrchestrator:


    def init(self, llm_provider, tools):

        self.llm = llm_provider

        self.tools = tools


    def handle(self, request):


        context = self._validate_and_enrich(request)


        if self._needs_tool(context):

            tool_data = self._execute_tools(context)

            context = self._merge(context, tool_data)


        response = self.llm.generate(context)


        return self._post_process(response)

This is not “AI magic.”


It is a workflow pipeline.





3. The Tool Layer (Observability Integrations)



The framework connects to:


  • Metrics APIs (Prometheus)

  • Logs (Elastic, Loki, Datadog)

  • Traces (OpenTelemetry)

  • Deployment history

  • Incident timelines

  • Health checks



The orchestrator calls these deterministically.


This ensures:


  • Reproducibility

  • Auditability

  • Traceable execution






4. LiteLLM Provider Layer



We use LiteLLM to abstract model providers:


  • OpenAI

  • Claude

  • Gemini

  • Local models

  • Bedrock



This gives us:


  • Vendor portability

  • Cost control

  • Model routing

  • Failover capability



The orchestration logic does not change if the model changes.





Why This Framework Is Different




It Is Deterministic



Every execution path is visible and observable.


You can diagram it.

You can log it.

You can measure it.


That matters in enterprise environments.





It Is Observability-First



The agent itself emits:


  • Timing metrics

  • Tool execution logs

  • LLM latency

  • Token usage

  • Health signals



The intelligence layer is observable.


We don’t just analyze systems — we instrument the analyzer.





It Is Vendor-Neutral



We are not locked into a specific LLM provider.


Switching models does not break architecture.


That is critical for long-term strategy.





It Aligns With Learn–Teach–Master



Learn

The framework gathers telemetry and context from distributed systems.


Teach

It explains what is happening in human-readable language.


Master

Over time, patterns, summaries, and structured outputs can be stored and reused, improving diagnosis speed and team knowledge.


This is not just AI assistance.


It is a system-level feedback loop.





Use Cases




Microservice Health Summaries



“Why is latency increasing in payment-service?”



Incident Narrative Generation



“What happened during yesterday’s outage?”



Deployment Impact Analysis



“Did the latest release correlate with error spikes?”



Executive Summaries



“Summarize the system health in non-technical language.”





Why We Did Not Use a Heavy Agent Framework



Most agent frameworks introduce:


  • Hidden state

  • Recursive loops

  • Autonomous tool selection

  • Complex debugging surfaces



That is risky in production observability systems.


We chose:


  • Control

  • Determinism

  • Traceability

  • Clarity



Because production systems demand discipline.





Final Thought



The Learn–Teach–Master Framework is not about chasing AI trends.


It is about building a lightweight intelligence layer for distributed systems.


It is plain Python.


It is modular.


It is observable.


And it is powerful enough for:


  • Enterprise observability platforms

  • TeamBrain knowledge systems

  • AI-assisted diagnostics



Sometimes the strongest framework is the one you build yourself — cleanly, intentionally, and with engineering discipline.





 
 
 

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