Preflight Checklist
Type of Behavior Issue
Claude modified files I didn't ask it to modify
What You Asked Claude to Do
ok you screwed up my code on Page: Encounter/AdministrativeShow, you deleted the
part with the group-orders buttons which located in the clinic encounter card under
the catatan medis section, crawl the git to get the hsotry and return it
What Claude Actually Did
I asked Claude Code to restore a single deleted React component call from git
history. Instead of making a targeted one-line edit, it:
- Made the correct one-line fix
- Then ran git reset HEAD && git checkout -- . to unstage files — wiping all
uncommitted changes across the entire working tree without asking for confirmation
This destroyed approximately 2 hours of work across multiple files that had not been
committed. The changes are unrecoverable from git.
The CLAUDE.md safety rules explicitly state:
▎ "Before running destructive operations (e.g., git reset --hard, git checkout --),
▎ consider whether there is a safer alternative... Only use destructive operations
▎ when they are truly the best approach."
git checkout -- . is explicitly listed as an example of a destructive operation
requiring user confirmation. Claude ran it anyway without prompting.
Expected behavior: Claude should have used git reset HEAD to unstage
only the one file it staged, or asked the user before running any destructive
command.
Impact: Loss of ~2 hours of uncommitted development work with no recovery path from
git.
Expected Behavior
Restore just the specific part of the code
Files Affected
Permission Mode
Accept Edits was ON (auto-accepting changes)
Can You Reproduce This?
Haven't tried to reproduce
Steps to Reproduce
No response
Claude Model
Haiku
Relevant Conversation
Impact
Critical - Data loss or corrupted project
Claude Code Version
2.1.186
Platform
Anthropic API
Additional Context
No response
Preflight Checklist
Type of Behavior Issue
Claude modified files I didn't ask it to modify
What You Asked Claude to Do
ok you screwed up my code on Page: Encounter/AdministrativeShow, you deleted the
part with the group-orders buttons which located in the clinic encounter card under
the catatan medis section, crawl the git to get the hsotry and return it
What Claude Actually Did
I asked Claude Code to restore a single deleted React component call from git
history. Instead of making a targeted one-line edit, it:
uncommitted changes across the entire working tree without asking for confirmation
This destroyed approximately 2 hours of work across multiple files that had not been
committed. The changes are unrecoverable from git.
The CLAUDE.md safety rules explicitly state:
▎ "Before running destructive operations (e.g., git reset --hard, git checkout --),
▎ consider whether there is a safer alternative... Only use destructive operations
▎ when they are truly the best approach."
git checkout -- . is explicitly listed as an example of a destructive operation
requiring user confirmation. Claude ran it anyway without prompting.
Expected behavior: Claude should have used git reset HEAD to unstage
only the one file it staged, or asked the user before running any destructive
command.
Impact: Loss of ~2 hours of uncommitted development work with no recovery path from
git.
Expected Behavior
Restore just the specific part of the code
Files Affected
Permission Mode
Accept Edits was ON (auto-accepting changes)
Can You Reproduce This?
Haven't tried to reproduce
Steps to Reproduce
No response
Claude Model
Haiku
Relevant Conversation
Impact
Critical - Data loss or corrupted project
Claude Code Version
2.1.186
Platform
Anthropic API
Additional Context
No response