Scott Idem 508fb638ad feat: distill safeguards — rolling backups + sanity checks ...

Before any memory file is overwritten, _rotate_backup() keeps 2 rolling
backups: MEMORY_*.bak1.md (most recent) and MEMORY_*.bak2.md (older).

_sanity_check() now also guards against size anomalies: the new content
must be between 40% and 250% of the old file size — anything outside that
range looks like truncation or runaway output and aborts the write.
Existing checks (min length, refusal phrases) still apply.

Backup files exposed in the Files panel (ALLOWED set) so they can be
reviewed and manually restored if needed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-05 18:54:27 -04:00

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