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• Secure .mcp.json Management with direnv — Keep Your API Keys Out of Git

  Posted on: 1/14/2026

  Are you hardcoding API keys in your .mcp.json? Learn how to use direnv to safely manage sensitive credentials as environment variables and prevent accidental git commits.

• Demystifying Playwright Test Agents' seed.spec.ts: What I Learned from Reading the MCP Code

  Posted on: 12/5/2025

  Understanding the role of seed.spec.ts in Playwright Test Agents by diving into the MCP source code to see how AI agents use it for browser setup.

• Deciphering GraphQL: A Deep Dive into Type Merging and Schema Stitching

  Posted on: 9/27/2023

  A detailed walkthrough of GraphQL Type Merging in Schema Stitching, explaining how multiple schemas with the same types are merged at the gateway level.

• Cross Module Transaction with Prisma

  Posted on: 6/14/2022

  How to write cross-module transactions in Node.js using Prisma and cls-hooked for a layered architecture.

• Policy enforcement with Vue.js and OPA WebAssembly

  Posted on: 12/22/2019

  How to integrate OPA WebAssembly with Vue.js to enforce policies in the front-end using Rego.

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