Navayuvan Subramanian (@navayuvan)

How I Built a Fully Async Feature Pipeline With Claude, Notion & Vercel

The exact workflow I use to go from feature idea to merged PR — with 5 human approval gates, a 9am Claude routine, and mobile testing on Vercel previews.

5 min readblogs.navayuvan.com

1Jul 4

Three Layers of Tool Call Hardening for AI Agents

Most devs focus on prompts and model choice. The real security gap is your tool schema. Here's how to harden AI agent tool calls in 3 layers.

6 min readblogs.navayuvan.com

May 11

I Reverse Engineered Claude's UI Widget — And It Changed How I Think About Building LLM Apps

Anthropic doesn't use React components to render widget. They give Claude a design system and let it generate raw HTML/CSS/JS, rendered in an iframe.

5 min readblogs.navayuvan.com

Apr 22

Why Using Multiple Claude Code Accounts Is Broken — And the Setup That Finally Fixed It

Using multiple Claude Code accounts usually means duplicated settings, lost project history, and broken commands. Here’s the setup I use to share ever

4 min readblogs.navayuvan.com

1Apr 3

Why Most AI Coding Workflows Fail — and How Mine Cut 2 Weeks of Work to 2 Days

Lessons from building production features with AI, large codebases, and real constraints.

6 min readblogs.navayuvan.com

Dec 23, 2025

Navayuvan Subramanian

About

Available for

Navayuvan Subramanian's blogs

How I Built a Fully Async Feature Pipeline With Claude, Notion & Vercel

Three Layers of Tool Call Hardening for AI Agents

I Reverse Engineered Claude's UI Widget — And It Changed How I Think About Building LLM Apps

Why Using Multiple Claude Code Accounts Is Broken — And the Setup That Finally Fixed It

Why Most AI Coding Workflows Fail — and How Mine Cut 2 Weeks of Work to 2 Days

Navayuvan Subramanian

About

Available for

Navayuvan Subramanian's blogs

How I Built a Fully Async Feature Pipeline With Claude, Notion & Vercel

Three Layers of Tool Call Hardening for AI Agents

I Reverse Engineered Claude's UI Widget — And It Changed How I Think About Building LLM Apps

Why Using Multiple Claude Code Accounts Is Broken — And the Setup That Finally Fixed It

Why Most AI Coding Workflows Fail — and How Mine Cut 2 Weeks of Work to 2 Days

Navayuvan Subramanian

About

Available for

Navayuvan Subramanian's blogs

How I Built a Fully Async Feature Pipeline With Claude, Notion & Vercel

Three Layers of Tool Call Hardening for AI Agents

I Reverse Engineered Claude's UI Widget — And It Changed How I Think About Building LLM Apps

Why Using Multiple Claude Code Accounts Is Broken — And the Setup That Finally Fixed It

Why Most AI Coding Workflows Fail — and How Mine Cut 2 Weeks of Work to 2 Days

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Navayuvan Subramanian

About

Available for

Navayuvan Subramanian's blogs

How I Built a Fully Async Feature Pipeline With Claude, Notion & Vercel

Three Layers of Tool Call Hardening for AI Agents

I Reverse Engineered Claude's UI Widget — And It Changed How I Think About Building LLM Apps

Why Using Multiple Claude Code Accounts Is Broken — And the Setup That Finally Fixed It

Why Most AI Coding Workflows Fail — and How Mine Cut 2 Weeks of Work to 2 Days