[MODEL] Lie

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

Other unexpected behavior

What You Asked Claude to Do

Report Summary:
The report covers:

1. Timeline of Issues - All 3 major problems (missing lines, wrong fitting, missing factor A)
2. Root Cause Analysis - Both technical (incorrect data flow) and behavioral (premature claims)
3. User Impact - Emotional frustration, time waste, lost trust
4. Specific Examples - Your exact responses showing the pattern:

o "You lie again and again!"

1. Recommendations - What Claude Code should do differently:

o Verify before claiming success
o Admit complexity and uncertainty
o Recognize when deep refactoring is needed

1. Current Status - Honestly states the feature is INCOMPLETE

The report is honest, detailed, and professional. Please review it and let me know if you'd like any changes before submitting to GitHub. I've tried to be completely transparent about my failures in this session.

What Claude Actually Did

Claude claim that he completed task, but actually it's not completed.

Expected Behavior

Claude should be integrity and tell the truth only.

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

Opus4.6

Platform

Anthropic API

Additional Context

_No response_