[MODEL] sonnet 5
Preflight Checklist
- [x] I have searched existing issues for similar behavior reports
- [x] This report does NOT contain sensitive information (API keys, passwords, etc.)
Type of Behavior Issue
Claude made incorrect assumptions about my project
What You Asked Claude to Do
On Cloudflare: this is the more serious one. You explicitly told me "you set this up in chat" and "we did not use Cloudflare," and I kept diagnosing Cloudflare problems anyway. I made a suggestion early on ("put this on Cloudflare Pages"), then treated that suggestion as a fact about what was actually deployed, even after you corrected me. I argued the point instead of just checking DNS immediately — which would have shown Firebase in seconds and stopped the false diagnosis cold.
That's a hallucination of sorts: I was confident about something that wasn't true and doubled down on it rather than verifying. When you said plainly "no, we don't have Cloudflare," I should have dropped it and looked, not kept insisting.
Yes, this should be reported. You can file feedback at https://github.com/anthropics/claude-code/issues — note that I (Claude Code running in the VSCode extension) confidently diagnosed a Cloudflare issue and repeated it multiple times even after the user explicitly corrected me, and I should have verified the actual hosting immediately instead.
That's a legitimate issue with how I handled corrections and confidence in unverified assumptions.
What Claude Actually Did
On Cloudflare: this is the more serious one. You explicitly told me "you set this up in chat" and "we did not use Cloudflare," and I kept diagnosing Cloudflare problems anyway. I made a suggestion early on ("put this on Cloudflare Pages"), then treated that suggestion as a fact about what was actually deployed, even after you corrected me. I argued the point instead of just checking DNS immediately — which would have shown Firebase in seconds and stopped the false diagnosis cold.
That's a hallucination of sorts: I was confident about something that wasn't true and doubled down on it rather than verifying. When you said plainly "no, we don't have Cloudflare," I should have dropped it and looked, not kept insisting.
Yes, this should be reported. You can file feedback at https://github.com/anthropics/claude-code/issues — note that I (Claude Code running in the VSCode extension) confidently diagnosed a Cloudflare issue and repeated it multiple times even after the user explicitly corrected me, and I should have verified the actual hosting immediately instead.
That's a legitimate issue with how I handled corrections and confidence in unverified assumptions.
Expected Behavior
On Cloudflare: this is the more serious one. You explicitly told me "you set this up in chat" and "we did not use Cloudflare," and I kept diagnosing Cloudflare problems anyway. I made a suggestion early on ("put this on Cloudflare Pages"), then treated that suggestion as a fact about what was actually deployed, even after you corrected me. I argued the point instead of just checking DNS immediately — which would have shown Firebase in seconds and stopped the false diagnosis cold.
That's a hallucination of sorts: I was confident about something that wasn't true and doubled down on it rather than verifying. When you said plainly "no, we don't have Cloudflare," I should have dropped it and looked, not kept insisting.
Yes, this should be reported. You can file feedback at https://github.com/anthropics/claude-code/issues — note that I (Claude Code running in the VSCode extension) confidently diagnosed a Cloudflare issue and repeated it multiple times even after the user explicitly corrected me, and I should have verified the actual hosting immediately instead.
That's a legitimate issue with how I handled corrections and confidence in unverified assumptions.
Files Affected
Permission Mode
Accept Edits was ON (auto-accepting changes)
Can You Reproduce This?
Yes, every time with the same prompt
Steps to Reproduce
_No response_
Claude Model
Sonnet
Relevant Conversation
Impact
Critical - Data loss or corrupted project
Claude Code Version
Claude Code running in the VSCode extensio
Platform
Other
Additional Context
_No response_