Skip to main content
Tahir Nazir — blog home
T
Tahir Nazir
Engineering notes
Articles
Portfolio
Games
Hire me
Articles — page 2
Page 2 of 4
Articles
10
CC
CC
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.
Troubleshooting
AI Engineering
·
October 12, 2026
·
14 min read
11
WI
WI
[WinError 10013] 'Access a Socket in a Way Forbidden': Windows Reserved the Port
Your port is free, netstat shows nothing on it, and Windows still refuses it with 'forbidden by its access permissions'. I reproduced it in Node and Python: the port sits in a range Windows has reserved, and here's how to see the list and get the port back.
Troubleshooting
Web Development
·
October 10, 2026
·
14 min read
12
CC
CC
Claude Code Not Working? Every Error and Its Fix
Every Claude Code error I've written up, grouped by what actually broke: network and enterprise setup, cost and context limits, or setup and tools. Find your exact message in the lookup table, get the one-line answer, then follow the link to the full fix.
Troubleshooting
AI Engineering
·
October 8, 2026
·
17 min read
13
NE
NE
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.
Troubleshooting
Web Development
·
October 8, 2026
·
13 min read
14
CC
CC
Claude Code 'Compacted Using a Summary Written While You Were Away'? Turn It Off
You stepped away and came back to 'Compacted using a summary written while you were away', or in the terminal 'Compacted while idle, before the prompt cache expired'. It's idle compaction, a cost-saving feature Anthropic switched on server-side. How to turn it off in settings.json or /config, and the exact rules I found in the code.
Troubleshooting
AI Engineering
·
October 7, 2026
·
25 min read
15
CC
CC
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.
Troubleshooting
AI Engineering
·
October 6, 2026
·
11 min read
16
CC
CC
Claude Code 'Auto Mode Check Unavailable' or 'Classifier Unavailable'? 4 Fixes
Bash, Edit and MCP calls all refused while Read still works. The auto mode safety check failed, not your command. What the error means, why it stops after ten, and four fixes from Anthropic's own docs.
Troubleshooting
AI Engineering
·
October 5, 2026
·
15 min read
17
NE
NE
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.
Troubleshooting
Web Development
·
October 2, 2026
·
11 min read
18
NE
NE
Next.js 16 Turbopack webpack Config Error: Don't Silence It
Next.js 16 fails the build when it finds a webpack config, and the error suggests turbopack: {}. I tested it. The build passes — and the service worker silently disappears.
Troubleshooting
Web Development
·
September 25, 2026
·
10 min read
Previous
1
2
3
4
Next