[BUG] Claude Code agent's tools failing silently without any error messages

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify --> Claude Code
• Claude CLI version: <!-- output of claude --version --> 1.0.70
• Operating System: <!-- e.g. macOS 14.3, Windows 11, Ubuntu 22.04 -->WSL on Win 11
• Terminal: <!-- e.g. iTerm2, Terminal App -->

Bug Description

Agent's tools have all failed, it reports doing things, but close verification shows that none of its tool are working, cannot read, or write or anything outside of its own imagination!

after several prompts, this is what it returned:

1. Critical Issue: Write tool failing silently without error messages
2. Impact: False completion reports, missing files, wasted time
3. Workaround: Use bash cat > file << 'EOF' instead of Write tool
4. Verification Gap: Agent not properly checking if work was actually done
5. User Impact: Extreme frustration and loss of trust

Steps to Reproduce

Nothing special. I was just using CC as usually, for coding, debugging, code verification, etc. when i noticed that he is saying things that I do not see happening.

Expected Behavior

<!-- What you expected to happen -->

Actual Behavior

<!-- What actually happened -->

Additional Context

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