The TrinityTuts Blog

Stories, guides, andideas for builders.

Deep tutorials on Model Context Protocol, AI agents, and the modern developer stack — written by developers, for developers.

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Today·16 min read

MCP + PostgreSQL: Query Your Database with Natural Language (2026)

Build a read-only MCP PostgreSQL server in TypeScript, connect it to Cursor, and query your database with natural language using least-privilege controls.

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Yesterday·18 min read

Cursor Agent Mode vs Chat: When to Use Each (2026)

Compare Cursor Agent mode vs Chat with a decision matrix by task type—explain, refactor, multi-file, MCP—plus cost, context tips, and hybrid workflows (2026).

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Yesterday·14 min read

MCP Server for GitHub: Issues, PRs, and Repo Search (2026)

Set up the GitHub MCP server with npx, PAT scopes, Cursor and Claude Desktop configs, example prompts, and when to build custom tools instead.

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Yesterday·17 min read

Cursor vs Copilot vs Windsurf: Honest 2026 Comparison

Honest mid-2026 comparison of Cursor, GitHub Copilot, and Windsurf — agents, MCP, rules, pricing bands, and when each tool fits real developer workflows.

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Yesterday·18 min read

10 Cursor Rules for React Native (Copy-Paste) (2026)

Copy-paste Cursor rules for React Native and Expo — TypeScript strict, Expo Router, StyleSheet vs NativeWind, FlatList, Jest, Metro, and expo-constants env.

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1w ago·11 min read

Build Your First MCP Server in TypeScript (2026)

Build your first MCP server in TypeScript with tools, resources, and stdio transport. Connect it to Cursor Agent mode — step-by-step guide tested July 2026.

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1w ago·10 min read

Top 5 Temporary Email Services for Developers (2026)

Compare the best temporary email services for QA, staging signups, and privacy. SnapMails, Mail.tm, 10 Minute Mail, and more — with developer use cases.

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1w ago·11 min read

Z.ai ZCode IDE: GLM Coding Workspace Setup Guide (2026)

Set up Z.ai ZCode — the official GLM desktop IDE with repo-wide context, BYOK API keys, and agent workflows for building prototypes and automation scripts.

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2w ago·10 min read

Cursor Rules Explained: Complete .cursor/rules Guide (2026)

Learn Cursor project rules — migrate from .cursorrules to .cursor/rules/*.mdc, use globs and alwaysApply, and copy-paste templates for Next.js and TypeScript.

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2w ago·12 min read

SEO & AI Search News for Developers: June 2026 Roundup

June 2026 SEO news for developers — Web IQ grounding, Google spam update, Search Profiles, GA4 source groups, and a docs-site audit checklist.

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