fix: write tool data-loss prevention - atomic pre-existence check before overwrite#31898
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LifetimeVip wants to merge 3 commits into
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fix: write tool data-loss prevention - atomic pre-existence check before overwrite#31898LifetimeVip wants to merge 3 commits into
LifetimeVip wants to merge 3 commits into
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…ages, fix type signature
…m writeTextPreservingBom)
…stence check before write
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This was referenced Jun 11, 2026
[BUG] File modification tools (edit/write/apply_patch/shell) lack data-loss prevention guards
#31248
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Thanks for updating your PR! It now meets our contributing guidelines. 👍 |
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@thdxr @jlongster @rekram1-node @simonklee @Hona these 8 PRs together fix 30 open issues (compaction context loss, Windows encoding, tool error handling, security, etc.). All are mergeable with no conflicts. Would appreciate a review when you have time. |
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Issue for this PR
Closes #31248 #30864
Type of change
What does this PR do?
Fix write tool silently overwriting existing files - add atomic pre-existence check with wx flag, preserve ToolFailure errors, clear 'use edit' message.
How did you verify your code works?
Tested in custom fork, verified write refuses to overwrite and returns actionable error.
Screenshots / recordings
N/A - logic change, not UI
Checklist