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Sanath Samarasinghe — Software Engineer

sanath@dev:~
01. certifications
Generative AI Leader Certification
Google · Issued Mar 2026 · Expires Mar 2029
Generative AIAgentic AIAI EthicsGoogle Cloud PlatformCloud ComputingBusiness Acumen
show credential ↗
Agentic AI
DeepLearning.AI · Issued Oct 2025
Agentic AITool UseAgent MemoryMulti-Agent SystemsOrchestrationAutonomous WorkflowsLLM AgentsPlanning and Execution
show credential ↗
02. recent writing // 6 posts
Mar 09 26
The Simple Loop Behind Every Fancy Agent
Every sophisticated agent harness still boils down to this tiny loop: call the model, run tools, feed results, repeat.
#ai#development#tools
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Feb 13 26
◆ FEATURED The Three Layers Every Production RAG System Needs
Document parsing, hybrid search, and orchestration - the three layers that separate toy RAG demos from production systems.
#ai#rag#langchain#opensource
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Feb 01 26
How OpenClaw Gives AI Agents Persistent Memory With Plain Markdown
A deep dive into how OpenClaw's file-based memory system gives AI assistants genuine continuity between sessions using Markdown files, semantic search, and automatic memory flush.
#ai#openclaw#development#tools
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Oct 29 25
◆ FEATURED The 5 MCP Servers Every Developer Needs in 2025
The 5 MCP servers that actually matter for your AI-powered dev workflow - semantic code nav, GitHub automation, browser testing, live docs, and persistent memory.
#mcp#ai#development#productivity
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sanath @ dev : ~/writing $ cd ~/writing && ls -la
03. now // last touched 2026-04-26
+ +

▸ current focus

  • Building — Draph — diagram & flowchart tool with AI-assisted layout. Meso — an agent runtime.
  • Writing — A long post on evals for agentic systems — why standard approaches fall short when tools have side effects.
  • Learning — How to build my own SLM — going deep on the fundamentals of small language models.

▸ consuming

  • Location — Berlin, DE.
04. stack // things I reach for daily
ai / agents
LangChainLangGraphOpenAI Agents SDKPydantic AIRAGMCPAgentic MemoryContext EngineeringLLM Evals
languages
TypeScriptJavaScriptPythonRustSwiftPHP
backend
NestJSNode.jsExpress.jsGraphQLFastAPIFlaskLaravel
frontend
React.jsReact NativeNext.js
data
PostgreSQLMongoDBRedisElasticsearchMySQLDynamoDB
infra
AWSDockerKubernetesArgoCDGitHub ActionsGrafanaElastic APM
arch
MicroservicesDomain Driven DesignCQRSRESTful APIsAgile/Scrum
editor
Neovimtmuxwezterm
05. open source
Draph
● active
Diagram & flowchart tool with AI-assisted layout. Build and share diagrams visually.
typescriptreact
Rewrite
● active
macOS grammar fixer with local LLMs. Fix text without sending it to the cloud.
swiftllm
Editor
● active
Live markdown editor in the browser. Write and preview Markdown with no setup.
typescriptreact