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Ray's Galactic Tech

Practice together, never alone. We cover programming languages, development tools, learning methods, and pitfall notes. We simplify complex topics, guiding you from beginner to advanced. Weekly practical content—let's grow together!

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Latest from Ray's Galactic Tech

100 recent articles max

Ray's Galactic Tech

Oct 22, 2026 · Artificial Intelligence

AI SRE Agents: Correct Answers ≠ Safe Execution — Layered Evaluation & Release Gates

This article presents a comprehensive evaluation framework for AI SRE agents that audits tool usage, execution trajectories, evidence provenance, safety constraints, and environmental outcomes — not just final answer correctness — using deterministic contract tests, real-model trials, mutation testing, and statistical release gates to ensure reliable, auditable automation.

AI SRE AgentCI/CDGo

0 likes · 62 min read

AI SRE Agents: Correct Answers ≠ Safe Execution — Layered Evaluation & Release Gates

Ray's Galactic Tech

Oct 21, 2026 · Backend Development

Agent Observability: From Traces to Task Failure Attribution — Production Design with Go, Java, OpenTelemetry & Kubernetes

This article presents a production-grade observability design for agent systems, covering task modeling, trace propagation, lease/fencing/checkpoint mechanisms, OpenTelemetry instrumentation in Go and Java, MCP integration, Kubernetes collector setup, PromQL dashboards, Argo CD release correlation, and fault injection experiments for failure attribution.

Agent SystemsFailure AttributionGo

0 likes · 51 min read

Agent Observability: From Traces to Task Failure Attribution — Production Design with Go, Java, OpenTelemetry & Kubernetes

Ray's Galactic Tech

Oct 20, 2026 · Cloud Native

From Push to Pull: Argo CD Multi-Env Governance & Safe Long-Running Task Delivery

The article details how the Aegis platform uses Argo CD pull-based GitOps for multi-environment release governance, covering immutable release identities, approval gates, lease/fencing for long-running workers, database migration patterns, and quantitative health gates to ensure safe deployments without duplicate side-effects.

Aegis PlatformArgo CDDatabase Migrations

0 likes · 52 min read

From Push to Pull: Argo CD Multi-Env Governance & Safe Long-Running Task Delivery

Ray's Galactic Tech

Oct 19, 2026 · Information Security

Zero-Trust Agent Tool Execution: From Prompt Injection to MCP Authorization in Go

The article presents a reference implementation for secure agent tool execution, establishing trust boundaries where only an independent executor authorizes side effects, covering Go parameter parsing, PostgreSQL approval workflows with leases and fencing, Kubernetes least-privilege deployment, and audit logging, while noting the code is unverified and not production-ready.

Audit LoggingAuthorizationFencing

0 likes · 44 min read

Zero-Trust Agent Tool Execution: From Prompt Injection to MCP Authorization in Go

Ray's Galactic Tech

Oct 18, 2026 · Backend Development

Why Stale Workers Still Cause Failures: Lease, Fencing & Outbox Patterns for Go + PostgreSQL

This article presents a production-grade design for handling long-running, preemptible worker tasks in Go and PostgreSQL, covering lease protocols, fencing tokens, outbox patterns, and side-effect reconciliation to prevent stale workers from corrupting state or duplicating external operations.

FencingGoIdempotency

0 likes · 37 min read

Why Stale Workers Still Cause Failures: Lease, Fencing & Outbox Patterns for Go + PostgreSQL

Ray's Galactic Tech

Oct 16, 2026 · Cloud Native

From Scripts to Operators: Building Reliable Go-based Kubernetes Auto-scaling Controllers

This article guides backend engineers through building a production-ready Kubernetes Operator in Go for reliable microservice auto-scaling, covering capacity modeling, CRD design, reconciliation patterns, error handling, testing strategies, and phased deployment to replace fragile scripting with robust control loops.

Auto ScalingCRDController-runtime

0 likes · 50 min read

From Scripts to Operators: Building Reliable Go-based Kubernetes Auto-scaling Controllers

Ray's Galactic Tech

Oct 14, 2026 · Backend Development

From Chatbot to AI Agent: Why a Single While Loop Fails in Production

The article details the first week of the Aegis project, demonstrating why a naive while-loop agent loop fails in production and how to replace it with deterministic contracts, a finite state machine, bounded execution budgets, server-side tool authorization, and reproducible failure testing using local mocks.

AI AgentConcurrency ControlGo

0 likes · 25 min read

From Chatbot to AI Agent: Why a Single While Loop Fails in Production

Ray's Galactic Tech

Oct 13, 2026 · Backend Development

Production-Ready Text-to-SQL: Secure Governance from Restricted Semantics to Revocable Execution

This article details a comprehensive governance framework for deploying Text-to-SQL systems in production, covering threat modeling, AST validation, multi-tenant isolation, performance admission via EXPLAIN, database permission hardening, budget-aware execution, cancellation semantics, and phased rollout strategies to ensure secure, auditable, and revocable data access.

AST ValidationEXPLAIN PlanJSqlParser

0 likes · 39 min read

Production-Ready Text-to-SQL: Secure Governance from Restricted Semantics to Revocable Execution

Ray's Galactic Tech

Oct 12, 2026 · Artificial Intelligence

Building Verifiable Text-to-SQL Systems: Schema Contracts, Prompt Engineering & Production Guardrails

This article presents a comprehensive engineering framework for production Text-to-SQL systems, covering schema contracts, prompt engineering, retrieval with permission-aware evidence closure, multi-layer SQL validation, execution isolation, and evaluation methodologies centered on business correctness and security boundaries.

LLM applicationsProduction SystemsSQL Generation

0 likes · 43 min read

Building Verifiable Text-to-SQL Systems: Schema Contracts, Prompt Engineering & Production Guardrails

Ray's Galactic Tech

Oct 11, 2026 · Backend Development

Building Production-Grade Text-to-SQL: From Natural Language to Trustworthy Data Analysis

The article presents a complete engineering framework for production Text-to-SQL systems, covering semantic contracts, metadata retrieval, controlled query compilation, security enforcement, execution budgets, evaluation, and phased rollout, using a "East China weekly payment GMV YoY" case study to demonstrate how to deliver trustworthy, auditable analytical answers rather than just executable SQL.

Execution BudgetMetadata RetrievalProduction Engineering

0 likes · 45 min read

Building Production-Grade Text-to-SQL: From Natural Language to Trustworthy Data Analysis