feat(sections): add loop engineering / update harness

Author: kimtth

README.md

@@ -20,7 +20,7 @@ A comprehensive, curated collection of resources for Azure OpenAI, Large Languag
 |-------------|----------------------------------------|-------------|
 | **Weights** <br/> 2022-2023 | Parametric knowledge baked into the model. <br/> `Themes: Pretraining, Scaling Laws, Fine-tuning, RLHF, Alignment, Instruction-following, Few-shot` | Foundations: [Large Language Model Landscape](section/models_research.md#large-language-model-landscape), [Large Language Model Collection](section/models_research.md#large-language-model-collection), [Foundation Model Providers](section/models_research.md#foundation-model-providers) <br/> Training: [Large Language Model Training and Optimization](section/models_research.md#large-language-model-training-and-optimization), [Model Training & Inference](section/azure.md#model-training--inference), [Training & Fine-tuning](section/applications.md#training--fine-tuning) <br/> Behavior and safety: [Trust, Safety, and Security](section/models_research.md#trust-safety-and-security), [Safety, Security & LLMOps](section/azure.md#safety-security--llmops) |
 | **Context** <br/> 2023-2024 | What the model sees at inference time. <br/> `Themes: Prompting, Chain-of-Thought, RAG, Memory, Long Context, Knowledge Injection, Context Engineering` | Prompting: [Prompt Engineering and Visual Prompts](section/models_research.md#prompt-engineering-and-visual-prompts), [Prompt Engineering & Tooling](section/azure.md#prompt-engineering--tooling) <br/> Retrieval: [RAG](section/applications.md#rag-retrieval-augmented-generation), [Azure AI Search](section/azure.md#azure-ai-search), [RAG Best Practices](section/best_practices.md#rag-best-practices) <br/> Memory and context windows: [Context and Long-Context Limits](section/models_research.md#context-and-long-context-limits), [Memory](section/applications.md#memory), [Data Processing & Memory](section/azure.md#data-processing--memory) |
-| **Harness** <br/> 2025-2026 | How the agent acts in the real world. <br/> `Themes: Function Calling, Tool Ecosystems, MCP, Skills, Workflow Graphs, Multi-agent, A2A protocols, Orchestration, Agent Infrastructure, Security` | Agent runtime: [AI Application](section/applications.md#ai-application), [Agent Frameworks](section/azure.md#agent-frameworks), [Agent Development](section/azure.md#agent-development), [Agent Best Practices](section/best_practices.md#agent-best-practices) <br/> Protocols and tools: [Agent Protocol](section/applications.md#agent-protocol), [Coding & Research](section/applications.md#coding--research), [Skill](section/applications.md#skill), [Harness](section/applications.md#harness), [Dev Tools, MCP & Extensions](section/azure.md#dev-tools-mcp--extensions) <br/> Apps and operations: [Evaluating Large Language Models](section/tools_extra.md#evaluating-large-language-models), [LLMOps](section/tools_extra.md#llmops-large-language-model-operations), [Learning Resources & Workshops](section/azure.md#learning-resources--workshops), [Code Samples & Workshops](section/azure.md#code-samples--workshops) |
+| **Harness** <br/> 2025-2026 | How the agent acts in the real world. <br/> `Themes: Function Calling, Tool Ecosystems, MCP, Skills, Workflow Graphs, Multi-agent, A2A protocols, Orchestration, Agent Infrastructure, Security` | Agent runtime: [AI Application](section/applications.md#ai-application), [Agent Frameworks](section/azure.md#agent-frameworks), [Agent Development](section/azure.md#agent-development), [Agent Best Practices](section/best_practices.md#agent-best-practices) <br/> Protocols and tools: [Agent Protocol](section/applications.md#agent-protocol), [Coding & Research](section/applications.md#coding--research), [Skills](section/applications.md#skills), [Harness](section/applications.md#harness), [Loop Engineering](section/applications.md#loop-engineering), [Dev Tools, MCP & Extensions](section/azure.md#dev-tools-mcp--extensions) <br/> Apps and operations: [Evaluating Large Language Models](section/tools_extra.md#evaluating-large-language-models), [LLMOps](section/tools_extra.md#llmops-large-language-model-operations), [Learning Resources & Workshops](section/azure.md#learning-resources--workshops), [Code Samples & Workshops](section/azure.md#code-samples--workshops) |
 
 Refereces: [DailyDoseOfDS - *Evolution of the Agent Landscape*](https://blog.dailydoseofds.com/p/evolution-of-agent-landscape-from)
 
@@ -55,7 +55,9 @@ Refereces: [DailyDoseOfDS - *Evolution of the Agent Landscape*](https://blog.dai
   - [Coding](section/applications.md#coding)
   - [Deep Research](section/applications.md#deep-research)
   - [Domain-Specific Agents](section/applications.md#domain-specific-agents)
-  - [Skill](section/applications.md#skill) / [Harness](section/applications.md#harness)
+  - [Skills](section/applications.md#skills)
+  - [Harness](section/applications.md#harness)
+    - [Loop Engineering](section/applications.md#loop-engineering)
 
 **[⬆ back to top](#azure-openai--llm-wiki)**
 
@@ -154,13 +156,13 @@ Refereces: [DailyDoseOfDS - *Evolution of the Agent Landscape*](https://blog.dai
 | Category | Goal | Suggested path |
 |----------|------|----------------|
 | RAG | Explore RAG patterns | [RAG](section/applications.md#rag-retrieval-augmented-generation) → [GraphRAG](section/applications.md#graphrag) → [RAG Application](section/applications.md#rag-application) → [RAG Best Practices](section/best_practices.md#rag-best-practices) → [RAG Research](section/best_practices.md#rag-research) |
-| AI Engineering | Build an AI Engineering Workflow | [RAG](section/applications.md#rag-retrieval-augmented-generation) → [AI Application](section/applications.md#ai-application) → [Agent Protocol](section/applications.md#agent-protocol) → [Coding](section/applications.md#coding) → [Deep Research](section/applications.md#deep-research) → [Domain-Specific Agents](section/applications.md#domain-specific-agents) → [Skill](section/applications.md#skill) → [Harness](section/applications.md#harness) |
-| Skills & Harnesses | Extend a Coding Agent | [Skill](section/applications.md#skill) → [Harness](section/applications.md#harness) → [Coding](section/applications.md#coding) → [Tool Use](section/best_practices.md#tool-use) → [Evaluation Metrics](section/tools_extra.md#evaluation-metrics) |
+| AI Engineering | Build an AI Engineering Workflow | [RAG](section/applications.md#rag-retrieval-augmented-generation) → [AI Application](section/applications.md#ai-application) → [Agent Protocol](section/applications.md#agent-protocol) → [Coding](section/applications.md#coding) → [Deep Research](section/applications.md#deep-research) → [Domain-Specific Agents](section/applications.md#domain-specific-agents) → [Skills](section/applications.md#skills) → [Harness](section/applications.md#harness) → [Loop Engineering](section/applications.md#loop-engineering) |
+| Skills & Harnesses | Extend a Coding Agent | [Skills](section/applications.md#skills) → [Harness](section/applications.md#harness) → [Loop Engineering](section/applications.md#loop-engineering) → [Coding](section/applications.md#coding) → [Tool Use](section/best_practices.md#tool-use) → [Evaluation Metrics](section/tools_extra.md#evaluation-metrics) |
 | Agents | Design an agent workflow | [Top Agent Frameworks](section/applications.md#top-agent-frameworks) → [Agent Design Patterns](section/best_practices.md#agent-design-patterns) → [Tool Use](section/best_practices.md#tool-use) → [Memory](section/applications.md#memory) → [Agent Research](section/best_practices.md#agent-research) |
 | Data & Analytics | Build a data or analytics agent | [Data & Analytics Agents](section/applications.md#data--analytics-agents) → [Data Processing & OCR](section/applications.md#data-processing--ocr) → [Memory](section/applications.md#memory) → [Tool Use](section/best_practices.md#tool-use) → [Evaluating Large Language Models](section/tools_extra.md#evaluating-large-language-models) |
 | Local LLMs | Build a local or self-hosted LLM application | [Large Language Model Collection](section/models_research.md#large-language-model-collection) → [Model Serving & Local Runtimes](section/applications.md#model-serving--local-runtimes) → [Model Gateway](section/applications.md#model-gateway) → [UI & No-Code Tool](section/applications.md#ui--no-code-tool) → [Observability & LLMOps](section/applications.md#observability--llmops) |
 | MCP & Integration | Build MCP-enabled tools | [Model Context Protocol](section/applications.md#model-context-protocol-mcp) → [Dev Tools, MCP & Extensions](section/azure.md#dev-tools-mcp--extensions) → [Safety, Security & LLMOps](section/azure.md#safety-security--llmops) → [Agent Best Practices](section/best_practices.md#agent-best-practices) |
-| Developer Agents | Build coding or research agents | [Coding](section/applications.md#coding) → [Deep Research](section/applications.md#deep-research) → [Skill](section/applications.md#skill) → [Harness](section/applications.md#harness) → [Tool Calling & Agentic](section/tools_extra.md#tool-calling--agentic) |
+| Developer Agents | Build coding or research agents | [Coding](section/applications.md#coding) → [Deep Research](section/applications.md#deep-research) → [Skills](section/applications.md#skills) → [Harness](section/applications.md#harness) → [Loop Engineering](section/applications.md#loop-engineering) → [Tool Calling & Agentic](section/tools_extra.md#tool-calling--agentic) |
 | Azure / RAG | Build an Azure RAG application | [Azure OpenAI & Foundry Overview](section/azure.md#azure-openai--foundry-overview) → [Azure AI Search](section/azure.md#azure-ai-search) → [RAG Solution Design](section/best_practices.md#rag-solution-design) → [Sample Applications](section/azure.md#sample-applications) → [Evaluating Large Language Models](section/tools_extra.md#evaluating-large-language-models) |
 | Azure / Agents | Build an Azure agent | [Agent Frameworks](section/azure.md#agent-frameworks) → [Agent Design Patterns](section/best_practices.md#agent-design-patterns) → [Model Context Protocol](section/applications.md#model-context-protocol-mcp) → [Agent Development](section/azure.md#agent-development) → [Evaluating Large Language Models](section/tools_extra.md#evaluating-large-language-models) |
 | Microsoft 365 | Build a Microsoft 365 agent | [Microsoft 365 Agent Development](section/azure.md#microsoft-365-agent-development) → [Copilot Product Catalog](section/azure.md#copilot-product-catalog) → [Dev Tools, MCP & Extensions](section/azure.md#dev-tools-mcp--extensions) → [Agent Development](section/azure.md#agent-development) |