The Problem of OpenCode Skills Not Invoking Sub-agents
Solved the sub-agent automatic call issue with manual specification, improving implementation efficiency and cost reduction.
Articles
Enabling AI Agents to Develop While Confirming Browser Displays in a WSL + OpenCode Environment
Enable AI agents to confirm browser displays in WSL and OpenCode environments. Automate UI verification using Playwright's headless browser.
How to Define Sub-agents in Codex and Assign Roles to Get Work Done
This article explains how to define sub-agents in Codex and assign roles. It covers setting up agents for bug fixes and security reviews, model selection, and git management considerations.
Trying Out Resend's Free Email Sending Service
Resend's free email service is easy to use with HTTP API and official libraries. Simplifies email sending in cloud environments. Suitable for personal use with free quotas.
Startup IT Infrastructure: Precisely Cloudflare + Akamai Cloud
Startup IT Infrastructure: Cloudflare + Akamai for cost-effective Rails + PostgreSQL setup. Ensuring scalability for under 10,000 yen monthly.
Attended the 2026 Shimane Open Source Conference
The web in the AI era is evolving toward agent computing. MCP and Generative UI drive protocol changes, with WebMCP and local AI becoming crucial.
Trying to Code with GPT-5.6
Implemented a blog translation feature with GPT-5.6 Sol. Slower than DeepSeekV4 but faster than 5.5, implemented with Cloudflare and Rails.
Completed Upgrading to Ruby 4.0.5 Using OpenCode Skills
Completed upgrading from Ruby 3.4 to 4.0.5 using OpenCode skills in 10 minutes. Automated the process from research to testing, and created a Rails skill as well.
Minimum Server Configuration for a Personal Blog (This Blog's Configuration)
The minimum server configuration for a personal blog costs ¥916/month using ConoHa VPS and Cloudflare. Development tools cost ¥4600/month, with AI usage being the main expense. Cost verification for stable operations.
Trying Out OpenCode's Skills
Utilize OpenCode's skills by saving SKILL.md in project or home directories. Describe name and description in YAML to enable automatic security checks before git commit. Easy to adjust rules in Japanese.
Trying Out OpenCode Go
Switching from Codex to OpenCode Go, currently testing multiple models with a $10 monthly plan. Planning to switch between GLM-5.2 and DeepSeek V4 Flash based on difficulty.
How Cloudflare's DNS Protects Servers from Cyber Attacks
Cloudflare's DNS protects servers by hiding the origin server's IP address and relaying traffic through edge locations via the proxy function to block cyber attacks.
Kamal, a Ruby Deployment Tool, is Very Convenient
Kamal is a deployment tool for Ruby on Rails that automates Docker image generation and server deployment, suitable for small-scale systems.
Added AI Features to This Blog Application
Added AI features to the blog application to automatically generate slugs and summaries. Using Qwen3 via Cloudflare Workers AI, the data remains on Cloudflare.
A Little Hiccup with Route53 Resolver
Setting up Route53 Resolver to handle Aurora IP changes, but initially struggled with CNAME resolution until adding the necessary domain to the DNS forwarders.
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