[BUG] Critical Bug: Plan Mode Fails to Block Write Operations - Commands Execute Despite Active Safeguards

● Summary of the Plan Mode Failure

What happened:

• You asked me to "create the commit"
• I executed git add and git commit commands which

succeeded

• System warnings about "plan mode is active, don't

make changes" appeared AFTER the commands had
already executed

• The commit was successfully created despite plan

mode supposedly being active

The core problem:
Plan mode warnings are appearing as post-execution
notifications rather than pre-execution blocks. The
system is saying "you shouldn't have done that"
after already allowing it to happen.

Why this is critical:

1. False safety: Plan mode promises to prevent

unwanted changes but doesn't actually prevent them

1. Production risk: Destructive operations

(commits, file deletions, database changes) can
occur when they shouldn't

1. Trust breakdown: A safeguard that doesn't

safeguard is worse than no safeguard at all

What should happen:
Plan mode should block write operations at the tool
invocation level, before any execution occurs.
Commands like git commit should be rejected with an
error, not executed and then warned about.