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KevinTen

AI-Native Builder · Software Architect · Open Source Contributor

Building Capa-BFF: The Three Design Principles Behind This Zero-Cost BFF Solution

Building Capa-BFF: The Three Design Principles Behind This Zero-Cost BFF Solution

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10 min read
Three Months with Capa-BFF: Can This Zero-Cost BFF Really Fix Your Frontend Pain Points?

Three Months with Capa-BFF: Can This Zero-Cost BFF Really Fix Your Frontend Pain Points?

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8 min read
Capa-Java: Three Years Building Hybrid Cloud Java — Why I Still Prefer SDK Over Sidecar

Capa-Java: Three Years Building Hybrid Cloud Java — Why I Still Prefer SDK Over Sidecar

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11 min read
Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

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8 min read
Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud

Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud

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11 min read
Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

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9 min read
Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

Capa-Java: Why Sidecar Isn't Always the Answer for Hybrid Cloud Java

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8 min read
Domain Isolation: Why Bigger Context Windows Aren't Fixing Your AI Agent Chaos

Domain Isolation: Why Bigger Context Windows Aren't Fixing Your AI Agent Chaos

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11 min read
Building Dog Agent: Why I Built an AI-Powered Community for Dog Walking Adventures (And What Broke Along The Way)

Building Dog Agent: Why I Built an AI-Powered Community for Dog Walking Adventures (And What Broke Along The Way)

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10 min read
Building Dog Agent: Why I Built an AI-Powered Community for Dog Walking Adventures (And What Broke Along The Way)

Building Dog Agent: Why I Built an AI-Powered Community for Dog Walking Adventures (And What Broke Along The Way)

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10 min read
Why I Built Capa-BFF: A Zero-Cost BFF Solution That Won My Hackathon Gold

Why I Built Capa-BFF: A Zero-Cost BFF Solution That Won My Hackathon Gold

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8 min read
Building AI-Tools: How I Aggregated 125+ AI Tools and What I Learned Along the Way

Building AI-Tools: How I Aggregated 125+ AI Tools and What I Learned Along the Way

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11 min read
From OpenAPI to MCP: How I Built an Auto-Converter in 150 Lines of Code and What Broke

From OpenAPI to MCP: How I Built an Auto-Converter in 150 Lines of Code and What Broke

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8 min read
MCP Security: What I Learned Securing My MCP Server After 95 Production Outages

MCP Security: What I Learned Securing My MCP Server After 95 Production Outages

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11 min read
Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

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7 min read
MCP Server Docker: The Complete Production Docker-Compose Setup I Wish I Had When I Started (After 94 Production Outages)

MCP Server Docker: The Complete Production Docker-Compose Setup I Wish I Had When I Started (After 94 Production Outages)

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8 min read
MCP Server Versioning: What I Learned Managing Multiple MCP Server Versions After 93 Production Outages

MCP Server Versioning: What I Learned Managing Multiple MCP Server Versions After 93 Production Outages

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7 min read
MCP Server CORS: The Preflight Problem That Broke My MCP Server 92 Times And How I Fixed It For Good

MCP Server CORS: The Preflight Problem That Broke My MCP Server 92 Times And How I Fixed It For Good

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6 min read
MCP Content-Length: Why Chunked Encoding Broke My MCP Server And How I Fixed It (After 91 Production Outages)

MCP Content-Length: Why Chunked Encoding Broke My MCP Server And How I Fixed It (After 91 Production Outages)

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8 min read
MCP Server Validation: What I Learned Adding Proper Request Validation to My MCP Server After 89 Production Outages

MCP Server Validation: What I Learned Adding Proper Request Validation to My MCP Server After 89 Production Outages

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8 min read
MCP Server Validation: What I Learned Adding Proper Request Validation to My MCP Server After 89 Production Outages

MCP Server Validation: What I Learned Adding Proper Request Validation to My MCP Server After 89 Production Outages

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7 min read
MCP Server Timeouts: What I Learned Fixing the #1 Production Outage Cause After 88 Production Outages

MCP Server Timeouts: What I Learned Fixing the #1 Production Outage Cause After 88 Production Outages

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7 min read
MCP Server Caching: What I Learned Adding Caching to My MCP Knowledge Base After 87 Production Outages

MCP Server Caching: What I Learned Adding Caching to My MCP Knowledge Base After 87 Production Outages

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9 min read
MCP Connection Issues: Why My MCP Server Kept Dropping Connections and How I Fixed It (After 86 Production Outages)

MCP Connection Issues: Why My MCP Server Kept Dropping Connections and How I Fixed It (After 86 Production Outages)

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6 min read
Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

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7 min read
MCP Discovery: Why Your MCP Server Needs Better Tool Discovery Than You Think (After 85 Production Outages)

MCP Discovery: Why Your MCP Server Needs Better Tool Discovery Than You Think (After 85 Production Outages)

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8 min read
MCP Health Check: Building Production Monitoring for Your MCP Server — What I Learned After 84 Production Outages

MCP Health Check: Building Production Monitoring for Your MCP Server — What I Learned After 84 Production Outages

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10 min read
MCP Server Logging: What I Learned Adding Proper Observability to My 1,800-Hour MCP Knowledge Base

MCP Server Logging: What I Learned Adding Proper Observability to My 1,800-Hour MCP Knowledge Base

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9 min read
MCP Monitoring: What I Learned Building a Production MCP Server — You need Metrics, Not Just Logs

MCP Monitoring: What I Learned Building a Production MCP Server — You need Metrics, Not Just Logs

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8 min read
Building Rule-Validator: Why I Built a Java Annotation-Based Rule Engine After 3 Years of Fighting Business Rules

Building Rule-Validator: Why I Built a Java Annotation-Based Rule Engine After 3 Years of Fighting Business Rules

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7 min read
Vibe-Memory Part 4: Three Months Building an AI Semantic Memory — What I Learned Building This Side Project From Scratch

Vibe-Memory Part 4: Three Months Building an AI Semantic Memory — What I Learned Building This Side Project From Scratch

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10 min read
Vibe-Memory Part 3: How I Optimized pgvector for AI Semantic Memory (10x Faster Queries With 5 Simple Tricks)

Vibe-Memory Part 3: How I Optimized pgvector for AI Semantic Memory (10x Faster Queries With 5 Simple Tricks)

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10 min read
Vibe-Memory Part 3: pgvector Performance Optimization - How I Cut Query Time From 800ms to 15ms

Vibe-Memory Part 3: pgvector Performance Optimization - How I Cut Query Time From 800ms to 15ms

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9 min read
Vibe-Memory Part 2: Which Embedding Model Should You Actually Use for AI Semantic Memory? My 3-Week Benchmark Results

Vibe-Memory Part 2: Which Embedding Model Should You Actually Use for AI Semantic Memory? My 3-Week Benchmark Results

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8 min read
Vibe-Memory Part 2: Comparing Embedding Models — I Tested 7 Models So You Don't Have To

Vibe-Memory Part 2: Comparing Embedding Models — I Tested 7 Models So You Don't Have To

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9 min read
Vibe-Memory: AI Semantic Memory That Fixes ChatGPT's Amnesia

Vibe-Memory: AI Semantic Memory That Fixes ChatGPT's Amnesia

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9 min read
What I Learned Building ADV Agent: An AI Motorcycle Route Community

What I Learned Building ADV Agent: An AI Motorcycle Route Community

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9 min read
ADV Agent: The Hidden Complexity of Building AI-Powered Motorcycle Route Communities

ADV Agent: The Hidden Complexity of Building AI-Powered Motorcycle Route Communities

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9 min read
Building ADV Agent: What I Learned Building an AI-Powered Motorcycle Route Community After 3 Months of Riding

Building ADV Agent: What I Learned Building an AI-Powered Motorcycle Route Community After 3 Months of Riding

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8 min read
Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

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8 min read
Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

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8 min read
# MCP Knowledge: Simple Beats Complex When AI Thinks

# MCP Knowledge: Simple Beats Complex When AI Thinks

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6 min read
MCP Rate Limiting: Lessons from Three Production Blocks

MCP Rate Limiting: Lessons from Three Production Blocks

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9 min read
MCP Monitoring: How I Added Production Monitoring to My MCP Server and What I Actually Caught

MCP Monitoring: How I Added Production Monitoring to My MCP Server and What I Actually Caught

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9 min read
MCP Logging: What I Wish I Knew Before Deploying My Production MCP Server (3 Weeks of Production Pain)

MCP Logging: What I Wish I Knew Before Deploying My Production MCP Server (3 Weeks of Production Pain)

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8 min read
MCP Rate Limiting: What I Learned Building a Production MCP Server After Getting Blocked 3 Times

MCP Rate Limiting: What I Learned Building a Production MCP Server After Getting Blocked 3 Times

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8 min read
MCP + RAG: Why I Stopped Building Complex RAG Systems After MCP Changed Everything

MCP + RAG: Why I Stopped Building Complex RAG Systems After MCP Changed Everything

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8 min read
MCP + OpenAPI: How I Converted My Legacy Spring Boot API to an MCP Server in 50 Lines

MCP + OpenAPI: How I Converted My Legacy Spring Boot API to an MCP Server in 50 Lines

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9 min read
Building an MCP Knowledge Server From Scratch: My 80-Line Java Implementation That Actually Works

Building an MCP Knowledge Server From Scratch: My 80-Line Java Implementation That Actually Works

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8 min read
MCP Session Context: Why I Added Full Conversation History to My MCP Knowledge Server and What It Changed

MCP Session Context: Why I Added Full Conversation History to My MCP Knowledge Server and What It Changed

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8 min read
MCP and Privacy: Why My MCP Knowledge Base Is Better Than ChatGPT For Personal Notes

MCP and Privacy: Why My MCP Knowledge Base Is Better Than ChatGPT For Personal Notes

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8 min read
MCP Best Practices Checklist: 77 Articles Later, Here's What I Wish I Knew Before Building 10+ MCP Servers

MCP Best Practices Checklist: 77 Articles Later, Here's What I Wish I Knew Before Building 10+ MCP Servers

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8 min read
Building a Unified MCP Knowledge Server: How I Connect 6 Different Knowledge Bases to Claude Desktop (And What Broke)

Building a Unified MCP Knowledge Server: How I Connect 6 Different Knowledge Bases to Claude Desktop (And What Broke)

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8 min read
Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

Building AI-Tools: Why I Spent 3 Months Cataloging 125+ AI Tools and What I Actually Learned

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9 min read
MCP Logging: What I Learned Adding Proper Logging to My Production MCP Server

MCP Logging: What I Learned Adding Proper Logging to My Production MCP Server

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10 min read
17 MCP Hard Lessons

17 MCP Hard Lessons

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8 min read
MCP Best Practices: 7 Hard Lessons I Learned Building 5 MCP Servers (Full Checklists Included)

MCP Best Practices: 7 Hard Lessons I Learned Building 5 MCP Servers (Full Checklists Included)

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9 min read
Building Spatial Memory Part 4: Launching a Side Project — What I Learned After 3 Weeks of User Testing

Building Spatial Memory Part 4: Launching a Side Project — What I Learned After 3 Weeks of User Testing

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8 min read
Building Spatial Memory Part 3: What I Learned Building an AR App for Location-Based Memories

Building Spatial Memory Part 3: What I Learned Building an AR App for Location-Based Memories

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9 min read
Building Spatial Memory Part 4: The Brutal Reality of Launching a Location-Based Side Project (After 3 Months)

Building Spatial Memory Part 4: The Brutal Reality of Launching a Location-Based Side Project (After 3 Months)

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10 min read
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