Code for life

Builder

[Bastion-RAG 3 – Navigator] Hybrid Reranking

Technically speaking, “hybrid reranking” is not an inherently complex concept, and to be honest, it...

Builder

[Bastion-RAG 2 – Vault] – Deterministic De-identification

Jun 4, 2026

Looking at recent security incidents, I find myself questioning whether this type of de-identification is...

Builder

[Bastion-RAG 2 – Vault] Multi-Tenancy

Jun 4, 2026

As software engineers, confronting new architectural paradigms and implementing them into live production code invariably...

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[Bastion-RAG 1 – Sentinel] – Metadata Filtering

May 31, 2026

When designing “Metadata Filtering,” defining its conceptual boundaries was initially challenging. Unlike “Prompt Injection,” which...

Builder

[Bastion-RAG 1 – Sentinel] Prompt Injection Defense

May 31, 2026

This section marks the beginning of the implementation phase. While the complete architecture design ([Bastion-RAG...

Builder

[Bastion-RAG 0] Get help from AI (Architecture Design)

May 30, 2026

This section marks the beginning of the implementation phase. For this reason, the comprehensive architecture...

Deep-dive

10 Technical Reports for Token Consumption and Cost Optimization in Claude Code and Gemini CLI Environments

May 29, 2026

Terminal-based AI agents like Claude Code and Gemini Cli drastically boost our productivity by analyzing...

Deep-dive

The Evolution of Vulnerabilities from DevOps to MLOps and LLMOps

May 29, 2026

The transition from DevOps to MLOps, and subsequently to LLMOps, introduces evolving infrastructure complexities and...

Builder

[Bastion-RAG] Project Security RAG

May 29, 2026

As a Proof of Concept (PoC) project, this initiative aims to actualize my previous theoretical...

Deep-dive

[The AI Shield 10] Honey-token Injection – Advanced Defense

May 24, 2026

The implementation of honey-tokens within defensive security architectures functions as a tactical deflection mechanism, routing...

[Bastion-RAG 3 – Navigator] Hybrid Reranking

[Bastion-RAG 2 – Vault] – Deterministic De-identification

[Bastion-RAG 2 – Vault] Multi-Tenancy

[Bastion-RAG 1 – Sentinel] – Metadata Filtering

[Bastion-RAG 1 – Sentinel] Prompt Injection Defense

[Bastion-RAG 0] Get help from AI (Architecture Design)

10 Technical Reports for Token Consumption and Cost Optimization in Claude Code and Gemini CLI Environments

The Evolution of Vulnerabilities from DevOps to MLOps and LLMOps

[Bastion-RAG] Project Security RAG

[The AI Shield 10] Honey-token Injection – Advanced Defense

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‘According to AI’: A word more powerful than a veteran’s years of experience—(Distrust)

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NER-based PII Anonymization: OpenAI Privacy Filter Analysis & Lightweight Implementation of privyscope-ko

AI Ecosystem Reversed Core Key Personnel (Top-down/Bottom-up)

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