Development journal

Posts tagged: OpenCode

Published notes filed under this topic.

OpenCode and Analytics

How to use the Google Analytics MCP in OpenCode to query GA4

13 min read

Written by: Jonathan Reis on Aug 21, 2026

Configure Google's official Analytics MCP in OpenCode, authorize ADC access, and turn repeated GA4 questions into reproducible reports.

OpenCode MCP Google Analytics GA4 OAuth

AI engineering

How to audit OpenCode AI gateways for model identity, silent fallbacks, and real cost

11 min read

Written by: Jonathan Reis on Aug 10, 2026

A repeatable OpenCode workflow for checking whether an AI gateway routes the requested model, comparing billing with upstream prices, and testing image generation endpoints.

AI gateways OpenCode LLM costs Model routing Python

VS Code and AI tooling

How to build a VS Code extension: I read the OpenCode one and wrote my own

10 min read

Written by: Jonathan Reis on Jul 24, 2026

A practical tutorial on how to build a VS Code extension from scratch. I read the minified source of the official OpenCode extension, found the internal HTTP endpoint, and built one that sends any selection — including from unsaved files.

VS Code OpenCode VS Code extensions AI tooling JavaScript Cursor