TECHNICAL GUIDES BY OGINAU
Knowledge that connects AI to real work.
English editions are generated from approved Japanese canonical articles and published as static content with terminology and evidence checks.
What Is User-owned AI Execution? Using Your Own PC as an AI Execution Environment
Learn how AI can execute approved tasks on your own PC or browser, how this differs from cloud execution, and lessons from OGINAU Remote.
What Is an Allowed Root? Limiting AI File Access
Learn how Allowed Root limits AI file access to approved folders, with lessons from OGINAU Remote Windows tests and move-operation boundaries.
Insufficient Scope: Causes and Troubleshooting Steps
Troubleshoot OAuth insufficient_scope errors by comparing required and granted scopes, distinguishing 403 from 401, and reauthorizing only when needed.
What Is OAuth Scope? Choosing AI Access Permissions
Learn OAuth scopes, read and write permissions, requested versus granted access, and how scope differs from resource-level authorization.
What Is OAuth? Authorization for AI Service Connections
Understand OAuth, authorization versus authentication, access tokens, scopes, and how OAuth supports AI connections using MCP.
MCP Tools Not Showing in ChatGPT: What to Check
Troubleshoot missing MCP tools in ChatGPT by checking app settings, tool discovery, server endpoints, OAuth, permissions and tool updates.
Complete Guide to MCP: Connecting AI with External Tools
MCP hosts, clients, tools, discovery, authorization and implementation lessons.
Tool Calling vs MCP: What's the Difference?
Understand how AI tool calling differs from MCP, how they work together, and when to use direct APIs or a shared tool protocol.
How to Use ChatGPT to Work With Files on Your PC: A Complete Guide
Understand how ChatGPT, Codex, MCP and a Windows Connector can work with files on your own PC, including permissions and safety measures.
What is MCP? A simple guide to the standard protocol connecting AI with external tools
A beginner-friendly explanation of MCP, how AI connects to external tools and data, and how Hosts, Clients, and Servers work together.