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Tahir Nazir

Engineering notes on AI systems, web architecture, and shipping product.

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Running AI developer tools inside company networks: TLS-inspecting proxies, LLM gateways and Google Cloud's Agent Platform, where the error or the extra cost usually comes from something in the middle rather than the tool itself.

Articles with this tag

Claude SneakPeek Vulnerability: Is Your Claude Desktop Patched?
SneakPeek let a booby-trapped HTML file steal SSH keys and cloud credentials through Claude Code Desktop's preview pane. It was fixed in August in Claude Desktop 1.30096.1. Here's a one-line check I tested on Windows, and why it has nothing to do with the claude-sneakpeek tool.TroubleshootingAI EngineeringOctober 15, 202611 min read
Claude Code Auto Mode Classifier Billing: Why 'This Session Isn't Eligible'
Claude Code now says auto mode will stop charging for classifier requests, then tells you your session isn't eligible. Nothing is broken, but you may be paying for safety checks other people get free. Who is billed, why a gateway is usually the cause, and the fix.TroubleshootingAI EngineeringOctober 12, 202614 min read
Corporate Proxy SSL Errors in npm, pip, git and curl: What Each Tool Actually Trusts
I put npm, pip, Python, git and curl behind an intercepting proxy and tested every certificate setting. Half the usual fixes are silently ignored, and half the ones that work break your tools the moment you leave the office.TroubleshootingWeb DevelopmentOctober 8, 202613 min read
Claude Code 'There's an Issue With the Selected Model': It's Usually Just a 404
I pointed Claude Code at a fake API and fed it every kind of error. Any 404 — a typo, a stray /v1, a gateway's error page — produced this exact message. Here's how to tell which one you have.TroubleshootingAI EngineeringOctober 6, 202611 min read
Next.js 'Failed to Fetch' Google Fonts Behind a Corporate Proxy: I Tested Every Fix
NODE_EXTRA_CA_CERTS fixes it under webpack and does nothing under Turbopack. I ran nine builds through an intercepting proxy on Next.js 16.1 and 16.3 — the fix that works depends on your version.TroubleshootingWeb DevelopmentOctober 2, 202611 min read
Claude Code on Vertex AI: Why You Get 404s, Wrong Regions and an Opus-Sized Bill
Model not found on Google Cloud's Agent Platform is rarely one problem. A malformed region is silently ignored and falls back to us-east5, ANTHROPIC_VERTEX_PROJECT_ID overrides the project in your credentials, and a deployment with no pinned model is billed at the Opus rate.TroubleshootingAI EngineeringSeptember 10, 202611 min read
Claude Code SSL Certificate Verification Failed: Fix It by Error Code
SSL certificate verification failed (UNABLE_TO_GET_ISSUER_CERT_LOCALLY) or Self-signed certificate detected (SELF_SIGNED_CERT_IN_CHAIN) behind Zscaler or any TLS-inspecting proxy. The error's advice is right — but Claude Code already reads your OS certificate store, so the order you apply it in decides whether it works.TroubleshootingAI EngineeringSeptember 6, 202621 min read

More topics

AI Engineering
Web Development
#Claude Code
#Troubleshooting
#AI Agents
#Developer Tools
#Security
#Next.js
#Windows
#Networking
#Auto Mode
#Cost Optimization
#MCP
#Token Usage